sn74ls147
’147, ’LS147
Encode 10-Line Decimal to 4-Line BCD
Applications Include:
− Keyboard Encoding
− Range Selection
’148, ’LS148
Encode 8 Data Lines to 3-Line Binary
(Octal)
Applications Include:
− n-Bit Encoding
− Code Converters and Generators
description/ordering information
These TTL encoders feature priority decoding of the inputs to ensure that only the highest-order data line is
encoded. The ’147 and ’LS147 devices encode nine data lines to four-line (8-4-2-1) BCD. The implied decimal
zero condition requires no input condition, as zero is encoded when all nine data lines are at a high logic level.
The ’148 and ’LS148 devices encode eight data lines to three-line (4-2-1) binary (octal). Cascading circuitry
(enable input EI and enable output EO) has been provided to allow octal expansion without the need for external
circuitry. For all types, data inputs and outputs are active at the low logic level. All inputs are buffered to represent
one normalized Series 54/74 or 54/74LS load, respectively.
Click here to download sn74ls147 Texas Instruments TI pdf datasheet
DatasheetDoc-Texas Instruments TI pdf datasheet download
Friday, October 5, 2012
OPA657 Texas Instruments TI pdf datasheet download
OPA657
1.6GHz, Low-Noise, FET-Input
OPERATIONAL AMPLIFIER
FEATURES
HIGH GAIN BANDWIDTH PRODUCT: 1.6GHz
HIGH BANDWIDTH 275MHz (G = +10)
LOW INPUT OFFSET VOLTAGE: ±0.25mV
LOW INPUT BIAS CURRENT: 2pA
LOW INPUT VOLTAGE NOISE: 4.8nV/ Hz
HIGH OUTPUT CURRENT: 70mA
FAST OVERDRIVE RECOVERY
APPLICATIONS
WIDEBAND PHOTODIODE AMPLIFIER
WAFER SCANNING EQUIPMENT
ADC INPUT AMPLIFIER
TEST AND MEASUREMENT FRONT END
HIGH GAIN PRECISION AMPLIFIER
DESCRIPTION
The OPA657 combines a high gain bandwidth, low distortion,
voltage-feedback op amp with a low voltage noise JFET-input
stage to offer a very high dynamic range amplifier for high
precision ADC (Analog-to-Digital Converter) driving or wideband
transimpedance applications. Photodiode applications will see
improved noise and bandwidth using this decompensated,
high gain bandwidth amplifier.
Very low level signals can be significantly amplified in a single
OPA657 gain stage with exceptional bandwidth and accuracy.
Having a high 1.6GHz gain bandwidth product will give
> 10MHz signal bandwidths up to gains of 160V/V (44dB). The
very low input bias current and capacitance will support this
performance even for relatively high source impedances.
Broadband photodetector applications will benefit from the low
voltage noise JFET inputs for the OPA657. The JFET input
contributes virtually no current noise while for broadband
applications, a low voltage noise is also required. The low
4.8nV/ Hz input voltage noise will provide exceptional input
sensitivity for higher bandwidth applications. The example
shown below will give a total equivalent input noise current of
1.8pA/ Hz over a 10MHz bandwidth.
Click here to download OPA657 Texas Instruments TI pdf datasheet
DatasheetDoc-Texas Instruments TI pdf datasheet download
1.6GHz, Low-Noise, FET-Input
OPERATIONAL AMPLIFIER
FEATURES
HIGH GAIN BANDWIDTH PRODUCT: 1.6GHz
HIGH BANDWIDTH 275MHz (G = +10)
LOW INPUT OFFSET VOLTAGE: ±0.25mV
LOW INPUT BIAS CURRENT: 2pA
LOW INPUT VOLTAGE NOISE: 4.8nV/ Hz
HIGH OUTPUT CURRENT: 70mA
FAST OVERDRIVE RECOVERY
APPLICATIONS
WIDEBAND PHOTODIODE AMPLIFIER
WAFER SCANNING EQUIPMENT
ADC INPUT AMPLIFIER
TEST AND MEASUREMENT FRONT END
HIGH GAIN PRECISION AMPLIFIER
DESCRIPTION
The OPA657 combines a high gain bandwidth, low distortion,
voltage-feedback op amp with a low voltage noise JFET-input
stage to offer a very high dynamic range amplifier for high
precision ADC (Analog-to-Digital Converter) driving or wideband
transimpedance applications. Photodiode applications will see
improved noise and bandwidth using this decompensated,
high gain bandwidth amplifier.
Very low level signals can be significantly amplified in a single
OPA657 gain stage with exceptional bandwidth and accuracy.
Having a high 1.6GHz gain bandwidth product will give
> 10MHz signal bandwidths up to gains of 160V/V (44dB). The
very low input bias current and capacitance will support this
performance even for relatively high source impedances.
Broadband photodetector applications will benefit from the low
voltage noise JFET inputs for the OPA657. The JFET input
contributes virtually no current noise while for broadband
applications, a low voltage noise is also required. The low
4.8nV/ Hz input voltage noise will provide exceptional input
sensitivity for higher bandwidth applications. The example
shown below will give a total equivalent input noise current of
1.8pA/ Hz over a 10MHz bandwidth.
Click here to download OPA657 Texas Instruments TI pdf datasheet
DatasheetDoc-Texas Instruments TI pdf datasheet download
OPA452 OPA453 Texas Instruments TI pdf datasheet download
OPA452
OPA453
80V, 50mA
OPERATIONAL AMPLIFIERS
FEATURES
WIDE POWER-SUPPLY RANGE:
±10V to ±40V
HIGH OUTPUT LOAD DRIVE:
50mA Continuous
WIDE OUTPUT VOLTAGE SWING: 1V to Rail
FULLY PROTECTED:
Thermal Shutdown
Output Current-Limited
WIDE OPERATING TEMPERATURE RANGE:
–40°C TO +125°C
PACKAGE OPTIONS:
TO220-7
DDPACK-7 Surface-Mount
APPLICATIONS
PIEZOELECTRIC CELLS
TEST EQUIPMENT
AUDIO AMPLIFIERS
TRANSDUCER DRIVERS
SERVO DRIVERS
DESCRIPTION
The OPA452 and OPA453 are low-cost operational amplifiers
with high-voltage (80V) and high-current capabilities
(50mA). The OPA452 is unity-gain stable and has a gain
bandwidth product of 1.8MHz, whereas the OPA453 is optimized
for gains greater than 5 and has a 7.5MHz bandwidth.
The OPA452 and OPA453 are internally protected against
over-temperature conditions and current overloads. Power
supplies in the range of ±10V to ±40V can be used. Unlike
most other power op amps, the OPA452 and OPA453 have
ensured specifications over the entire power-supply range.
These laser-trimmed, monolithic integrated circuits provide
excellent low-level accuracy along with wide output swing.
Special design considerations assure that the product is
easy to use and free from phase inversion problems often
found in other amplifiers.
The OPA452 and OPA453 are available in TO220-7 and
DDPAK-7 options. They are specified for a junction temperature
range of –40°C to +125°C.
Click here to download OPA452 OPA453 Texas Instruments TI pdf datasheet
DatasheetDoc-Texas Instruments TI pdf datasheet download
OPA453
80V, 50mA
OPERATIONAL AMPLIFIERS
FEATURES
WIDE POWER-SUPPLY RANGE:
±10V to ±40V
HIGH OUTPUT LOAD DRIVE:
50mA Continuous
WIDE OUTPUT VOLTAGE SWING: 1V to Rail
FULLY PROTECTED:
Thermal Shutdown
Output Current-Limited
WIDE OPERATING TEMPERATURE RANGE:
–40°C TO +125°C
PACKAGE OPTIONS:
TO220-7
DDPACK-7 Surface-Mount
APPLICATIONS
PIEZOELECTRIC CELLS
TEST EQUIPMENT
AUDIO AMPLIFIERS
TRANSDUCER DRIVERS
SERVO DRIVERS
DESCRIPTION
The OPA452 and OPA453 are low-cost operational amplifiers
with high-voltage (80V) and high-current capabilities
(50mA). The OPA452 is unity-gain stable and has a gain
bandwidth product of 1.8MHz, whereas the OPA453 is optimized
for gains greater than 5 and has a 7.5MHz bandwidth.
The OPA452 and OPA453 are internally protected against
over-temperature conditions and current overloads. Power
supplies in the range of ±10V to ±40V can be used. Unlike
most other power op amps, the OPA452 and OPA453 have
ensured specifications over the entire power-supply range.
These laser-trimmed, monolithic integrated circuits provide
excellent low-level accuracy along with wide output swing.
Special design considerations assure that the product is
easy to use and free from phase inversion problems often
found in other amplifiers.
The OPA452 and OPA453 are available in TO220-7 and
DDPAK-7 options. They are specified for a junction temperature
range of –40°C to +125°C.
Click here to download OPA452 OPA453 Texas Instruments TI pdf datasheet
DatasheetDoc-Texas Instruments TI pdf datasheet download
OPA27 OPA37 Texas Instruments TI pdf datasheet download
OPA27 OPA37
Ultra-Low Noise, Precision
OPERATIONAL AMPLIFIERS
FEATURES
LOW NOISE: 4.5nV/√Hz max at 1kHz
LOW OFFSET: 100μV max
LOW DRIFT: 0.4μV/°C
HIGH OPEN-LOOP GAIN: 117dB min
HIGH COMMON-MODE REJECTION: 100dB min
HIGH POWER-SUPPLY REJECTION: 94dB min
FITS OP-07, OP-05, AD510, AND AD517
SOCKETS
APPLICATIONS
PRECISION INSTRUMENTATION
DATA ACQUISITION
TEST EQUIPMENT
PROFESSIONAL AUDIO EQUIPMENT
TRANSDUCER AMPLIFIERS
RADIATION HARD EQUIPMENT
DESCRIPTION
The OPA27 and OPA37 are ultra-low noise, high-precision
monolithic operational amplifiers.
Laser-trimmed thin-film resistors provide excellent long-term
voltage offset stability and allow superior voltage offset
compared to common zener-zap techniques.
A unique bias current cancellation circuit allows bias and
offset current specifications to be met over the full –40°C to
+85°C temperature range.
The OPA27 is internally compensated for unity-gain stability.
The decompensated OPA37 requires a closed-loop gain ≥ 5.
The Texas Instruments’ OPA27 and OPA37 are improved
replacements for the industry-standard OP-27 and OP-37.
Click here to download OPA27 OPA37 Texas Instruments TI pdf datasheet
DatasheetDoc-Texas Instruments TI pdf datasheet download
Ultra-Low Noise, Precision
OPERATIONAL AMPLIFIERS
FEATURES
LOW NOISE: 4.5nV/√Hz max at 1kHz
LOW OFFSET: 100μV max
LOW DRIFT: 0.4μV/°C
HIGH OPEN-LOOP GAIN: 117dB min
HIGH COMMON-MODE REJECTION: 100dB min
HIGH POWER-SUPPLY REJECTION: 94dB min
FITS OP-07, OP-05, AD510, AND AD517
SOCKETS
APPLICATIONS
PRECISION INSTRUMENTATION
DATA ACQUISITION
TEST EQUIPMENT
PROFESSIONAL AUDIO EQUIPMENT
TRANSDUCER AMPLIFIERS
RADIATION HARD EQUIPMENT
DESCRIPTION
The OPA27 and OPA37 are ultra-low noise, high-precision
monolithic operational amplifiers.
Laser-trimmed thin-film resistors provide excellent long-term
voltage offset stability and allow superior voltage offset
compared to common zener-zap techniques.
A unique bias current cancellation circuit allows bias and
offset current specifications to be met over the full –40°C to
+85°C temperature range.
The OPA27 is internally compensated for unity-gain stability.
The decompensated OPA37 requires a closed-loop gain ≥ 5.
The Texas Instruments’ OPA27 and OPA37 are improved
replacements for the industry-standard OP-27 and OP-37.
Click here to download OPA27 OPA37 Texas Instruments TI pdf datasheet
DatasheetDoc-Texas Instruments TI pdf datasheet download
LMV321 SINGLE, LMV358 DUAL LMV324 QUAD, LMV324S Texas Instruments TI pdf datasheet download
LMV321 SINGLE, LMV358 DUAL
LMV324 QUAD, LMV324S QUAD WITH SHUTDOWN
LOW-VOLTAGE RAIL-TO-RAIL OUTPUT OPERATIONAL AMPLIFIERS
1FEATURES
• 2.7-V and 5-V Performance
• –40°C to 125°C Operation
• Low-Power Shutdown Mode (LMV324S)
• No Crossover Distortion
• Low Supply Current
– LMV321 . . . 130 μA Typ
– LMV358 . . . 210 μA Typ
– LMV324 . . . 410 μA Typ
– LMV324S . . . 410 μA Typ
• Rail-to-Rail Output Swing
• ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 1000-V Charged-Device Model (C101)
DESCRIPTION/
ORDERING INFORMATION
The LMV321, LMV358, and LMV324/LMV324S are
single, dual, and quad low-voltage (2.7 V to 5.5 V)
operational amplifiers with rail-to-rail output swing.
The LMV324S, which is a variation of the standard
LMV324, includes a power-saving shutdown feature
that reduces supply current to a maximum of 5 μA
per channel when the amplifiers are not needed.
Channels 1 and 2 together are put in shutdown, as
are channels 3 and 4. While in shutdown, the outputs
actively are pulled low.
The LMV321, LMV358, LMV324, and LMV324S are
the most cost-effective solutions for applications
where low-voltage operation, space saving, and low
cost are needed. These amplifiers are designed
specifically for low-voltage (2.7 V to 5 V) operation,
with performance specifications meeting or exceeding
the LM358 and LM324 devices that operate from 5 V
to 30 V. Additional features of the LMV3xx devices
are a common-mode input voltage range that
includes ground, 1-MHz unity-gain bandwidth, and 1-
V/μs slew rate.
The LMV321 is available in the ultra-small DCK (SC-
70) package, which is approximately one-half the size
of the DBV (SOT-23) package. This package saves
space on printed circuit boards and enables the
design of small portable electronic devices. It also
allows the designer to place the device closer to the
signal source to reduce noise pickup and increase
signal integrity.
Click here to download LMV321 SINGLE, LMV358 DUAL LMV324 QUAD, LMV324S Texas Instruments TI pdf datasheet
DatasheetDoc-Texas Instruments TI pdf datasheet download
LMV324 QUAD, LMV324S QUAD WITH SHUTDOWN
LOW-VOLTAGE RAIL-TO-RAIL OUTPUT OPERATIONAL AMPLIFIERS
1FEATURES
• 2.7-V and 5-V Performance
• –40°C to 125°C Operation
• Low-Power Shutdown Mode (LMV324S)
• No Crossover Distortion
• Low Supply Current
– LMV321 . . . 130 μA Typ
– LMV358 . . . 210 μA Typ
– LMV324 . . . 410 μA Typ
– LMV324S . . . 410 μA Typ
• Rail-to-Rail Output Swing
• ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 1000-V Charged-Device Model (C101)
DESCRIPTION/
ORDERING INFORMATION
The LMV321, LMV358, and LMV324/LMV324S are
single, dual, and quad low-voltage (2.7 V to 5.5 V)
operational amplifiers with rail-to-rail output swing.
The LMV324S, which is a variation of the standard
LMV324, includes a power-saving shutdown feature
that reduces supply current to a maximum of 5 μA
per channel when the amplifiers are not needed.
Channels 1 and 2 together are put in shutdown, as
are channels 3 and 4. While in shutdown, the outputs
actively are pulled low.
The LMV321, LMV358, LMV324, and LMV324S are
the most cost-effective solutions for applications
where low-voltage operation, space saving, and low
cost are needed. These amplifiers are designed
specifically for low-voltage (2.7 V to 5 V) operation,
with performance specifications meeting or exceeding
the LM358 and LM324 devices that operate from 5 V
to 30 V. Additional features of the LMV3xx devices
are a common-mode input voltage range that
includes ground, 1-MHz unity-gain bandwidth, and 1-
V/μs slew rate.
The LMV321 is available in the ultra-small DCK (SC-
70) package, which is approximately one-half the size
of the DBV (SOT-23) package. This package saves
space on printed circuit boards and enables the
design of small portable electronic devices. It also
allows the designer to place the device closer to the
signal source to reduce noise pickup and increase
signal integrity.
Click here to download LMV321 SINGLE, LMV358 DUAL LMV324 QUAD, LMV324S Texas Instruments TI pdf datasheet
DatasheetDoc-Texas Instruments TI pdf datasheet download
LM3875 Texas Instruments TI pdf datasheet download
LM3875
Overture™ Audio Power Amplifier Series
High-Performance 56W Audio Power Amplifier
General Description
The LM3875 is a high-performance audio power amplifier
capable of delivering 56W of continuous average power to
an 8Ω load with 0.1% THD+N from 20Hz to 20kHz.
The performance of the LM3875, utilizing its Self Peak Instantaneous
Temperature (°Ke) (SPiKe™) protection circuitry,
puts it in a class above discrete and hybrid amplifiers
by providing an inherently, dynamically protected Safe Operating
Area (SOA). SPiKe protection means that these
parts are completely safeguarded at the output against overvoltage,
undervoltage, overloads, caused by shorts to the
supplies, thermal runaway, and instantaneous temperature
peaks.
The LM3875 maintains an excellent signal-to-noise ratio of
greater than 95dB(min) with a typical low noise floor of
2.0μV. It exhibits extremely low THD+N values of 0.06% at
the rated output into the rated load over the audio spectrum,
and provides excellent linearity with an IMD (SMPTE) typical
rating of 0.004%.
Features
n 56W continuous average output power into 8Ω
n 100W instantaneous peak output power capability
n Signal-to-Noise Ratio >95dB (min)
n Output protection from a short to ground or to the
supplies via internal current limiting circuitry
n Output over-voltage protection against transients from
inductive loads
n Supply under-voltage protection, not allowing internal
biasing to occur when |V+| + |V−| ≤ 12V, thus eliminating
turn-on and turn-off transients
n 11 lead TO-220 package
n Wide supply voltage range: |V+| + |V−| = 20V to 84V
Applications
n Component or compact stereos
n Self-powered speakers
n Surround-sound amplifiers
n High-end stereo TVs
Click here to download LM3875 Texas Instruments TI pdf datasheet
DatasheetDoc-Texas Instruments TI pdf datasheet download
Overture™ Audio Power Amplifier Series
High-Performance 56W Audio Power Amplifier
General Description
The LM3875 is a high-performance audio power amplifier
capable of delivering 56W of continuous average power to
an 8Ω load with 0.1% THD+N from 20Hz to 20kHz.
The performance of the LM3875, utilizing its Self Peak Instantaneous
Temperature (°Ke) (SPiKe™) protection circuitry,
puts it in a class above discrete and hybrid amplifiers
by providing an inherently, dynamically protected Safe Operating
Area (SOA). SPiKe protection means that these
parts are completely safeguarded at the output against overvoltage,
undervoltage, overloads, caused by shorts to the
supplies, thermal runaway, and instantaneous temperature
peaks.
The LM3875 maintains an excellent signal-to-noise ratio of
greater than 95dB(min) with a typical low noise floor of
2.0μV. It exhibits extremely low THD+N values of 0.06% at
the rated output into the rated load over the audio spectrum,
and provides excellent linearity with an IMD (SMPTE) typical
rating of 0.004%.
Features
n 56W continuous average output power into 8Ω
n 100W instantaneous peak output power capability
n Signal-to-Noise Ratio >95dB (min)
n Output protection from a short to ground or to the
supplies via internal current limiting circuitry
n Output over-voltage protection against transients from
inductive loads
n Supply under-voltage protection, not allowing internal
biasing to occur when |V+| + |V−| ≤ 12V, thus eliminating
turn-on and turn-off transients
n 11 lead TO-220 package
n Wide supply voltage range: |V+| + |V−| = 20V to 84V
Applications
n Component or compact stereos
n Self-powered speakers
n Surround-sound amplifiers
n High-end stereo TVs
Click here to download LM3875 Texas Instruments TI pdf datasheet
DatasheetDoc-Texas Instruments TI pdf datasheet download
LM1117/LM1117I Texas Instruments TI pdf datasheet download
LM1117/LM1117I
800mA Low-Dropout Linear Regulator
General Description
The LM1117 is a series of low dropout voltage regulators with
a dropout of 1.2V at 800mA of load current. It has the same
pin-out as National Semiconductor's industry standard
LM317.
The LM1117 is available in an adjustable version, which can
set the output voltage from 1.25V to 13.8V with only two external
resistors. In addition, it is also available in five fixed
voltages, 1.8V, 2.5V, 2.85V, 3.3V, and 5V.
The LM1117 offers current limiting and thermal shutdown. Its
circuit includes a zener trimmed bandgap reference to assure
output voltage accuracy to within ±1%.
The LM1117 series is available in LLP, TO-263, SOT-223,
TO-220, and TO-252 D-PAK packages. A minimum of 10μF
tantalum capacitor is required at the output to improve the
transient response and stability.
Features
● Available in 1.8V, 2.5V, 2.85V, 3.3V, 5V, and Adjustable
Versions
● Space Saving SOT-223 and LLP Packages
● Current Limiting and Thermal Protection
● Output Current 800mA
● Line Regulation 0.2% (Max)
● Load Regulation 0.4% (Max)
● Temperature Range
— LM1117 0°C to 125°C
— LM1117I −40°C to 125°C
Applications
● 2.85V Model for SCSI-2 Active Termination
● Post Regulator for Switching DC/DC Converter
● High Efficiency Linear Regulators
● Battery Charger
● Battery Powered Instrumentation
Click here to download LM1117/LM1117I Texas Instruments TI pdf datasheet
DatasheetDoc-Texas Instruments TI pdf datasheet download
800mA Low-Dropout Linear Regulator
General Description
The LM1117 is a series of low dropout voltage regulators with
a dropout of 1.2V at 800mA of load current. It has the same
pin-out as National Semiconductor's industry standard
LM317.
The LM1117 is available in an adjustable version, which can
set the output voltage from 1.25V to 13.8V with only two external
resistors. In addition, it is also available in five fixed
voltages, 1.8V, 2.5V, 2.85V, 3.3V, and 5V.
The LM1117 offers current limiting and thermal shutdown. Its
circuit includes a zener trimmed bandgap reference to assure
output voltage accuracy to within ±1%.
The LM1117 series is available in LLP, TO-263, SOT-223,
TO-220, and TO-252 D-PAK packages. A minimum of 10μF
tantalum capacitor is required at the output to improve the
transient response and stability.
Features
● Available in 1.8V, 2.5V, 2.85V, 3.3V, 5V, and Adjustable
Versions
● Space Saving SOT-223 and LLP Packages
● Current Limiting and Thermal Protection
● Output Current 800mA
● Line Regulation 0.2% (Max)
● Load Regulation 0.4% (Max)
● Temperature Range
— LM1117 0°C to 125°C
— LM1117I −40°C to 125°C
Applications
● 2.85V Model for SCSI-2 Active Termination
● Post Regulator for Switching DC/DC Converter
● High Efficiency Linear Regulators
● Battery Charger
● Battery Powered Instrumentation
Click here to download LM1117/LM1117I Texas Instruments TI pdf datasheet
DatasheetDoc-Texas Instruments TI pdf datasheet download
Subscribe to:
Posts (Atom)