OPA810 Texas instruments

OPA810

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OPA810

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Описание

The OPA810 is a single-channel, field-effect transistor (FET)-input, voltage-feedback operational amplifier with bias current in the picoampere (pA) range. The OPA810 is unity-gain stable with a small-signal, unity-gain bandwidth of 140 MHz, and offers excellent DC precision and dynamic AC performance at a low quiescent current (IQ) of 3.7 mA per channel. The OPA810 is fabricated on Texas Instruments proprietary, high-speed SiGe BiCMOS process and achieves significant performance improvements over comparable FET-input amplifiers at similar levels of quiescent power. With a gain-bandwidth product (GBWP) of 70 MHz, slew rate of 200 V/µs, and low-noise voltage of 6.3 nV/√ Hz, the OPA810 is well suited for use in a wide range of high-fidelity data acquisition and signal processing applications.The OPA810 features rail-to-rail inputs and outputs and delivers 75 mA of linear output current, suitable for driving optoelectronics components and analog-to-digital converter (ADC) inputs or buffering digital-to-analog converter (DAC) outputs into heavy loads.The OPA810 is rated over the extended industrial temperature range of –40°C to +125°C. The OPA2810 is a dual-channel variant of this device, available in 8-pin SOIC, SOT-23, and VSSOP packages.

Gain-Bandwidth Product: 70 MHz
Small-Signal Bandwidth: 140 MHz
Slew Rate: 200 V/µs
Wide Supply Range: 4.75 V to 27 V
Low Noise:
- Input Voltage Noise: 6.3 nV/√ Hz (f = 500 kHz)
- Input Current Noise: 5 fA/√ Hz (f = 10 kHz)
Rail-to-Rail Input and Output:
- FET Input Stage: 2-pA Input Bias Current (Typical)
- High Linear Output Current: 75 mA
Input Offset: ±500 µV (Maximum)
Offset Drift: ±2.5 µV/°C (Typical)
Low Power: 3.7 mA/Channel
Extended Temperature Operation: –40°C to +125°C
Dual-Channel Version: OPA2810

Architecture	FET / CMOS Input, Voltage FB
Number of channels	1
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V)	4.75
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V)	27
GBW (typ) (MHz)	70
BW at Acl (MHz)	140
Acl, min spec gain (V/V)	1
Slew rate (typ) (V/µs)	200
Vn at flatband (typ) (nV√Hz)	6.3
Vn at 1 kHz (typ) (nV√Hz)	9.5
Iq per channel (typ) (mA)	3.7
Vos (offset voltage at 25°C) (max) (mV)	0.5
Rail-to-rail	In, Out
Features	C-Load Drive
Rating	Catalog
Operating temperature range (°C)	-40 to 125
CMRR (typ) (dB)	100
Input bias current (max) (pA)	20
Offset drift (typ) (µV/°C)	2.5
Iout (typ) (mA)	75
2nd harmonic (dBc)	101
3rd harmonic (dBc)	101
Frequency of harmonic distortion measurement (MHz)	1