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See Technical Specifications

OPA656U

Voltage Feedback Amplifier 1 Circuit 8-SOIC

Manufacturer: Texas Instruments, Inc
Mfr.Part #: OPA656U
Datasheet: OPA656U Datasheet (PDF)
Amplifier Type: Voltage Feedback
Number of Circuits: 1
Slew Rate: 295V/µs
Gain Bandwidth Product: 230 MHz
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OPA656U General Description

The OPA656 device combines a very wideband, unity-gain stable, voltage-feedback operational amplifier with a FET-input stage to offer an ultra high dynamic-range amplifier for Analog-to-Digital Converter (ADC) buffering and transimpedance applications. Extremely low DC errors give good precision in optical applications.

The high unity-gain stable bandwidth and JFET input allows exceptional performance in high-speed, low-noise integrators.

The high input impedance and low bias current provided by the FET input is supported by the ultra-low 7-nV/√Hz input voltage noise to achieve a very low integrated noise in wideband photodiode transimpedance applications.

Broad transimpedance bandwidths are achievable given the OPA656 device’s high 230-MHz gain bandwidth product. As shown below, a –3-dB bandwidth of 1 MHz is provided even for a high 1-MΩ transimpedance gain from a 47-pF source capacitance.

Key Features

500 MHz Unity-gain Bandwidth
Low Input Bias Current: 2 pA
Low Offset And Drift: ±250 µV, ±2 µV/°C
Low Distortion: 74-dB SFDR at 5 MHz
High-Output Current: 70 mA
Low Input Voltage Noise: 7 nV/√Hz

Specifications

Category	Integrated Circuits (ICs)LinearAmplifiersInstrumentation, OP Amps, Buffer Amps	Mfr	Texas Instruments
Series	-	Package	Tube
Product Status	Active	Amplifier Type	Voltage Feedback
Number of Circuits	1	Output Type	-
Slew Rate	295V/µs	Gain Bandwidth Product	230 MHz
-3db Bandwidth	500 MHz	Current - Input Bias	2 pA
Voltage - Input Offset	250 µV	Current - Supply	14mA
Current - Output / Channel	70 mA	Voltage - Supply Span (Min)	8 V
Voltage - Supply Span (Max)	12 V	Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount	Supplier Device Package	8-SOIC
Base Product Number	OPA656

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