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8-SOIC
Integrated Circuits (ICs)

OPA657U/2K5

Active
Texas Instruments

1.6GHZ, LOW NOISE, FET-INPUT OPERATIONAL AMPLIFIER

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Search across all available documentation for this part.

DocumentsMeasuring Board Parasitics in High-Speed Analog DesignOPA657 1.6-GHz, Low-Noise, FET-Input Operational Amplifier datasheet (Rev. F)+10
8-SOIC
Integrated Circuits (ICs)

OPA657U/2K5

Active
Texas Instruments

1.6GHZ, LOW NOISE, FET-INPUT OPERATIONAL AMPLIFIER

Deep-Dive with AI

DocumentsMeasuring Board Parasitics in High-Speed Analog DesignOPA657 1.6-GHz, Low-Noise, FET-Input Operational Amplifier datasheet (Rev. F)+10

Technical Specifications

Parameters and characteristics for this part

SpecificationOPA657U/2K5
-3db Bandwidth350 MHz
Amplifier TypeVoltage Feedback
Current - Input Bias2 pA
Current - Output / Channel [custom]70 mA
Current - Supply14 mA
Gain Bandwidth Product1.6 GHz
Mounting TypeSurface Mount
Number of Circuits1
Operating Temperature [Max]85 °C
Operating Temperature [Min]-40 °C
Package / Case8-SOIC
Package / Case [x]0.154 in
Package / Case [y]3.9 mm
Slew Rate700 V/µs
Supplier Device Package8-SOIC
Voltage - Input Offset250 çV
Voltage - Supply Span (Max) [Max]12 V
Voltage - Supply Span (Min) [Min]8 V

OPA657 Series

1.6GHz, Low Noise, FET-Input Operational Amplifier

PartSlew RateMounting TypeCurrent - Output / Channel [custom]Voltage - Supply Span (Max) [Max]Current - Input BiasOperating Temperature [Max]Operating Temperature [Min]Package / CasePackage / Case [y]Package / Case [x]Current - SupplyNumber of CircuitsGain Bandwidth ProductVoltage - Input OffsetVoltage - Supply Span (Min) [Min]Supplier Device PackageAmplifier Type-3db Bandwidth
8-SOIC
Texas Instruments
OPA657U
700 V/µs
Surface Mount
70 mA
12 V
2 pA
85 °C
-40 °C
8-SOIC
3.9 mm
0.154 in
14 mA
1
1.6 GHz
250 çV
8 V
8-SOIC
Voltage Feedback
350 MHz
SOT753
Texas Instruments
OPA657NB/250G4
700 V/µs
Surface Mount
70 mA
12 V
1 pA
85 °C
-40 °C
SC-74A
SOT-753
14 mA
1
1.6 GHz
100 çV
8 V
SOT-23-5
Voltage Feedback
350 MHz
SOT753
Texas Instruments
OPA657N/250G4
700 V/µs
Surface Mount
70 mA
12 V
2 pA
85 °C
-40 °C
SC-74A
SOT-753
14 mA
1
1.6 GHz
250 çV
8 V
SOT-23-5
Voltage Feedback
350 MHz
8-SOIC
Texas Instruments
OPA657U/2K5
700 V/µs
Surface Mount
70 mA
12 V
2 pA
85 °C
-40 °C
8-SOIC
3.9 mm
0.154 in
14 mA
1
1.6 GHz
250 çV
8 V
8-SOIC
Voltage Feedback
350 MHz
8-SOIC
Texas Instruments
OPA657UG4
700 V/µs
Surface Mount
70 mA
12 V
2 pA
85 °C
-40 °C
8-SOIC
3.9 mm
0.154 in
14 mA
1
1.6 GHz
250 çV
8 V
8-SOIC
Voltage Feedback
350 MHz

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$
DigikeyTape & Reel (TR) 2500$ 8.40
Texas InstrumentsLARGE T&R 1$ 12.41
100$ 10.84
250$ 8.36
1000$ 7.48

Description

General part information

OPA657 Series

The OPA657 device combines a high-gain bandwidth, low-distortion, voltage-feedback operational amplifier 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 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 1.6-GHz gain bandwidth product gives greater than 10-MHz signal bandwidths up to gains of 160 V/V (44 dB). The very low input bias current and capacitance supports this performance even for relatively high source impedances.

Broadband photodetector applications 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 4.8 nV/√Hzinput voltage noise provides exceptional input sensitivity for higher bandwidth applications. The example shown below gives a total equivalent input noise current of 1.8 pA/√Hzover a 10-MHz bandwidth.