Low Noise, Precision, Rail-to-Rail Output,

JFET Single/Dual/Quad Op Amps

Data Sheet

ADA4610-1/ADA4610-2/ADA4610-4

Rev. G

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FEATURES

Low offset voltage

B grade: 0.4 mV maximum (ADA4610-1/ADA4610-2 only)

A grade: 1 mV maximum

Low offset voltage drift

B grade: 4 µV/°C maximum (ADA4610-1/ADA4610-2 only)

A grade: 8 µV/°C maximum (SOIC, MSOP, LFCSP packages)

Low input bias current: 5 pA typical

Dual-supply operation: ±5 V to ±15 V

Low voltage noise: 0.45 µV p-p at 0.1 Hz to 10 Hz

Voltage noise density: 7.30 nV/√Hz at f = 1 kHz

Low total harmonic distortion (THD) + noise: 0.00025%

No phase reversal

Rail-to-rail output

Unity-gain stable

APPLICATIONS

Instrumentation

Medical instruments

Multipole filters

Precision current measurement

Photodiode amplifiers

Sensors

Audio

PIN CONFIGURATION

V–

4

V+

8

OUT B

7

–IN B

6

+IN B

5

ADA4610-2

TOP VIEW

(Not to Scale)

Figure 1. ADA4610-2 8-Lead SOIC (R Suffix); for Additional Packages and

Models, See the Pin Configurations and Function Descriptions Section

GENERAL DESCRIPTION

The ADA4610-1/ADA4610-2/ADA4610-4 are precision JFET

amplifiers that feature low input noise voltage, current noise,

offset voltage, input bias current, and rail-to-rail output. The

ADA4610-1 is a single amplifier, the ADA4610-2 is a dual

amplifier, and the ADA4610-4 is a quad amplifier.

The combination of low offset, noise, and very low input bias

current makes these amplifiers especially suitable for high

impedance sensor amplification and precise current measurements

using shunts. With excellent dc precision, low noise, and fast

settling time, the ADA4610-1/ADA4610-2/ADA4610-4 provide

superior accuracy in medical instruments, electronic measurement,

and automated test equipment. Unlike many competitive

amplifiers, the ADA4610-1/ADA4610-2/ADA4610-4 maintain

fast settling performance with substantial capacitive loads. Unlike

many older JFET amplifiers, the ADA4610-1/ADA4610-2/

ADA4610-4 do not suffer from output phase reversal when input

voltages exceed the maximum common-mode voltage range.

The fast slew rate and great stability with capacitive loads make

the ADA4610-1/ADA4610-2/ADA4610-4 perfect fits for high

performance filters. Low input bias currents, low offset, and low

noise result in a wide dynamic range for photodiode amplifier

circuits. Low noise and distortion, high output current, and

excellent speed make the ADA4610-1/ADA4610-2/ADA4610-4

great choices for audio applications.

The ADA4610-1/ADA4610-2/ADA4610-4 are specified over

the −40°C to +125°C extended industrial temperature range.

The ADA4610-1 is available in an 8-lead SOIC package and in a

5-lead SOT-23 package. The ADA4610-2 is available in 8-lead

SOIC, 8-lead MSOP, and 8-lead LFCSP packages. The ADA4610-4

is available in a 14-lead SOIC package and in a 16-lead LFCSP.

Table 1. Related Precision JFET Operational Amplifiers

Single

Dual

Quad

AD8510

AD8512

AD8513

AD8610

AD8620

Not applicable

AD820

AD822

AD824

ADA4627-1/ADA4637-1

Not applicable

Not applicable

Not applicable

ADA4001-2

Not applicable