OPA2810 Texas instruments

OPA2810

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OPA2810

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Описание

The OPA2810 is a dual-channel, FET-input, voltage-feedback operational amplifier with low input bias current. The OPA2810 is unity-gain stable with a small-signal unity-gain bandwidth of 105 MHz, and offers excellent DC precision and dynamic AC performance at a low quiescent current (IQ) of 3.6 mA per channel (typical). The OPA2810 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 192 V/µs, and voltage low noise of 6 nV/√Hz, the OPA2810 is well suited for use in a wide range of high fidelity data acquisition and signal processing applications. The OPA2810 is characterized to operate over a wide supply range of 4.75 V to 27 V, and features rail-to-rail inputs and outputs. The OPA2810 amplifier delivers 75 mA of linear output current, suitable for driving optoelectronics components and analog-to-digital converter (ADC) inputs or buffering DAC outputs into heavy loads.The OPA2810 is available in 8-pin SOIC, SOT23, and VSSOP packages and is rated to work over the extended industrial temperature range of –40°C to +125°C. The OPA810 is a single-channel variant of this device, available in 8-pin SOIC and 5-pin SOT-23 and SC70 packages.

Gain-bandwidth product: 70 MHz
Small-signal bandwidth: 105 MHz
Slew rate: 192 V/µs
Wide supply range: 4.75 V to 27 V
Low noise:
- Input voltage noise: 6 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: ±1.5 mV (maximum)
Offset drift: ±2 µV/°C (typical)
Low power: 3.6 mA/channel
Extended temperature operation:
–40°C to +125°C
Single-channel version: OPA810

Architecture	FET / CMOS Input, Voltage FB
Number of channels	2
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)	105
Acl, min spec gain (V/V)	1
Slew rate (typ) (V/µs)	192
Vn at flatband (typ) (nV√Hz)	6
Vn at 1 kHz (typ) (nV√Hz)	16.43
Iq per channel (typ) (mA)	3.6
Vos (offset voltage at 25°C) (max) (mV)	1.5
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
Iout (typ) (mA)	75
2nd harmonic (dBc)	99
3rd harmonic (dBc)	104
Frequency of harmonic distortion measurement (MHz)	1