Features: Low offset voltage: 175 V maximum @ VSY = 5 V
Low supply current: 275 A maximum per amplifier
Single-supply operation: 5 V to 16 V
Low noise: 23 nV/Hz
Low input bias current: 300 fA
Unity-gain stable
Small packages available
3 mm * 3 mm, 8-lead LFCSP
8-lead MSOPApplicationSensor front ends
Transimpedance amps
Electrometer applications
Photodiode amplification
Low power ADC drivers
Medical diagnostic instruments
pH and ORP meters and probes
DAC or REF buffersPinout
Specifications
| -3dB Bandwidth |
520kHz |
| Slew Rate |
0.26V/s |
| Vos |
30V |
| Ib |
300fA |
| Input Noise (nV/rtHz) |
21nV/rtHz |
| Vcc-Vee Supply (V) |
5 to 16 |
| Iq per Amplifier |
285A |
| # OpAmps per Pkg |
4 |
| Operating Temp Range |
-40 to +125 |
| Packages |
SOIC,SOP |
| Parameter |
Rating |
Supply Voltage
Input Voltage
Differential Input Voltage
Output Short-Circuit Duration to GND
Storage Temperature Range
Operating Temperature Range
Junction Temperature Range
Lead Temperature, Soldering (60 sec) |
18 V
−0.1 V to VSY
18 V
Indefinite
−60to +150
−40 to +125
−65 to +150
300 |
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
DescriptionThe AD866x are rail-to-rail output amplifiers that use the Analog Devices, Inc., patented DigiTrim® trimming technique to achieve low offset voltage. The AD866x feature an extended operating range with supply voltages up to 16 V. They also feature low input bias current, low input offset voltage, and low current noise.
The combination of low offset, very low input bias current, and a wide supply range makes these amplifiers useful in a wide variety of applications usually associated with higher priced JFET amplifiers. Systems using high impedance sensors, such as photodiodes, benefit from the combination of low input bias current, low noise, low offset, and wide bandwidth.
The ability to operate the device for single (5 V to 16 V) or dual supplies (±2.5 V to ±8 V) supports many applications. The rail-to-rail outputs provide increased dynamic range to drive low frequency data converters. The low bias current drift is well suited for precision I-to-V converters. The combination of precision offset, offset drift, and low noise also make the op amps ideal for gain, dc offset adjust, and active filter in both instrumentation and medical applications. These low power op amps can be used in IR thermometers, pH and ORP instru-ments, pressure transducer front ends, and other sensor signal conditioning circuits that are used in remote or wireless applications.
The AD8663/AD8667/AD8669 are specified over the extended industrial temperature range of −40 to +125 The single 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 8-lead SOIC package and an 8-lead MSOP. The quad AD8669 is available in a 14-lead SOIC package.
AD8669 Data Sheet
