16 V, 250 μA, Dual Precision, CMOS,

Rail-to-Rail Output Operational Amplifier

AD8667

Rev. 0

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FEATURES

Lower power at high voltage: 180 μA typical

Low offset voltage: 100 μV

Voltage noise

21 nV/√Hz at 10 kHz

23 nV/√Hz at 1 kHz

Low input bias current: 300 fA

Single-supply operation: 5 V to 16 V

Dual-supply operation: ±2.5 V to ±8 V

Output drive: 10 mA

Unity gain stable

APPLICATIONS

Medical equipment

Physiological measurement

Precision references

Buffer/level shifting

Portable operated systems

High density power budget systems

Multipole filters

Sensors

Photodiode amplification

ADC drivers

PIN CONFIGURATION

V+

8

OUT B

7

–IN B

6

+IN B

5

AD8667

TOP VIEW

(Not to Scale)

Figure 1. 8-Lead MSOP, 8-Lead SOIC

GENERAL DESCRIPTION

The AD8667 is a dual, rail-to-rail output, single-supply/dual-supply

amplifier that uses Analog Devices, Inc. patented DigiTrim®

trimming technique to achieve low offset voltage, 300 μV over

the common-mode range. The AD8667 features an extended

operating range with supply voltages up to 16 V for low power

The device is designed for low noise at higher voltages: 21 nV/√Hz

at 10 kHz and 23 nV/√Hz at 1 kHz. It also features a low input

bias current of 300 fA and a 10 mA output drive.

The combination of low supply currents, low offsets, very low

input bias currents, and wide supply range makes the AD8667

ideal for a wide variety of low power applications. Systems

utilizing dc-to-low frequency measurements or high impedance

sensors, such as photodiodes, benefit from the low input bias

current, low noise, low offset, and low drive current. The wide

operating voltage range matches today’s high performance

ADCs and DACs. Medical monitoring equipment can take

advantage of the low voltage noise, high input impedance, low

voltage, and low current noise.

The AD8667 is specified over the extended industrial

temperature range of −40°C to +125°C.