ANALOG DEVICES AD8667 Data Sheet

Low Noise, Precision, 16 V, CMOS, Rail-to-Rail Operational Amplifiers

AD8663/AD8667/AD8669 FEATURES PIN CONFIGURATIONS Low offset voltage: 175 μV maximum @ VSY = 5 V Low supply current: 275 μA maximum per amplifier 1NC AD8663 NC

NC NC8

Single-supply operation: 5 V to 16 V AD8663 2–IN V+

–IN V+7

TOP VIEW 3+IN OUT

Low noise: 23 n V/√Hz +IN (Not to Scale) OUT6

4V– NC

V– NC5

Low input bias current: 300 f A Unity-gain stable NC = NO CONNECT

NC = NO CONNECT

Small packages available

Figure 1. 8-Lead SOIC (R-8) Figure 2. 8-Lead LFCSP (CP-8-2)

3 mm × 3 mm, 8-lead LFCSP 8-lead MSOP Other packages 8-lead SOIC

OUT OUT D14

14-lead SOIC

–IN –IN D13

OUT A V+8

14-lead TSSOP +IN AD8648 +IN D12

–IN A AD8667 OUT B7 TOP VIEW V+ VIEW V–11

+IN A –IN B6

(Not to Scale) (Not to Scale)

+IN +IN C10

APPLICATIONS V– +IN B5

–IN –IN C9

Sensor front ends OUT OUT C8 Transimpedance amplifiers

Figure 3. 8-Lead MSOP (RM-8), Figure 4. 14-Lead SOIC (R-14),

Electrometer applications

8-Lead SOIC (R-8) 14-Lead TSSOP (RU-14)

Photodiode amplification Low power ADC drivers Medical diagnostic instruments

p H and ORP meters and probes www.BDTIC.com/ADI DAC or REF buffers

GENERAL DESCRIPTION

The AD866x are rail-to-rail output amplifiers that use the frequency data converters. The low bias current drift is well- Analog Devices, Inc., patented Digi Trim® trimming technique suited for precision I-to-V converters. The combination of to achieve low offset voltage. The AD866x feature an extended precision offset, offset drift, and low noise also make the op operating range with supply voltages up to 16 V. They also amps ideal for gain, dc offset adjust, and active filter in both feature low input bias current, low input offset voltage, and instrumentation and medical applications. These low power

low current noise. op amps can be used in IR thermometers, p H and ORP instru-

ments, pressure transducer front ends, and other sensor signal

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

conditioning circuits that are used in remote or wireless

a wide supply range makes these amplifiers useful in a wide variety

applications.

of applications usually associated with higher priced JFET ampli- 2-

fiers. Systems using high impedance sensors, such as photodiodes, The AD8663/AD8667/AD8669 are specified over the extended benefit from the combination of low input bias current, low industrial temperature range of −40°C to +125°C. The single

noise, low offset, and wide bandwidth. AD8663 is available in a narrow 8-lead SOIC package and a very

thin, 8-lead LFCSP. The dual AD8667 is available in a narrow

The ability to operate the device for single (5 V to 16 V) or dual

8-lead SOIC package and an 8-lead MSOP. The quad AD8669

supplies (±2.5 V to ±8 V) supports many applications. The rail-

is available in a 14-lead SOIC and 14-lead small TSSOP.

to-rail outputs provide increased dynamic range to drive low

Rev. B Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

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