AD8620
ANALOG DEVICES
Dual, Ultralow Distortion, Ultra low Noise Op Amp


The AD8610 (single) and AD8620 (dual) are very high precision JFET input amplifiers featuring ultralow offset voltage and drift, very low input voltage and current noise, very low input bias current, and wide bandwidth. Unlike many JFET amplifiers, the AD8610 input bias current is low ove the entire operating temperature range. The AD8610 is stable with capacitive loads of over 1000 pF in noninverting unity gain; much larger capacitive loads can be driven easily at higher noise gains. The AD8610 swings to within 1.2 V of the supplies even with a 1 k Ω load, maximizing dynamic range even with limited supply voltages. Outputs slew at 50 V/µs in either inverting or noninverting gain configurations, and settle to 0.01% accuracy in less than 600 ns. Combined with the high input impedance, great precision, and very high output drive, theAD8610 is an ideal amplifier for driving high performance A/D inputs and buffering D/A converter outputs.


Features


* Low Noise 6 nV/√Hz
* Low Offset Voltage: 100 µV Max
* Low Input Bias Current 10 pA Max
* Fast Settling: 600 ns to 0.01%
* Low Distortion
* Unity Gain Stable
* No Phase Reversal
* Dual-Supply Operation: ±5 V to ±13 V
* Iq per Amplifier: 3.5mA
* OpAmps per Pkg: 2
* Operating Temp Range: -40 to +125
* Packages: SOIC
* -3dB Bandwidth: 25MHz
* Slew Rate: 50V/µs
* Vos: 85µV
* Ib: 2pA
* Input Noise (nV/rtHz): 6nV/rtHz
* Vcc-Vee Supply (V): 10 to 27

Applications

* Photo diode amplifier
* ATE
* Instrumentation
* Sensors and controls
* High performance filters
* Fast precision integrators
* High performance audio


AD8610_8620 Datasheet

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