The AD866x family are single supply, rail-to-rail output amplifiers with low noise performance featuring an extended operating range with supply voltages up to 16 V. They also feature low input bias currents, wide signal bandwidth, and low input voltage and current noise. For lower offset voltage, choose the AD8661/AD8662/AD8664 family.The combination of low offsets, very low input bias currents, and wide supply range make these amplifiers useful in a wide variety of cost sensitive applications normally associated with much higher priced JFET amplifiers. Systems using high impedance sensors, such as photo diodes, benefit from the combination of low input bias current, low noise, and low offset and bandwidth. The wide operating voltage range matches high performance ADCs and DACs. Audio applications and medical monitoring equipment can take advantage of the high input impedance, low voltage and current noise, wide bandwidth, and the lack of popcorn noise found in many other low input bias current amplifiers.
The AD866x family is specified over the extended industrial temperature range (−40°C to +125°C). See ordering guide for automotive models.
ApplicationsSensor amplification
Reference buffers
Medical equipment
Physiological measurements
Signal filters and conditioning
Consumer audio
Photodiode amplification
ADC driver
Level shifting circuits
Offset voltage: 2.5 mV max
Low input bias current: 1 pA max
Single-supply operation: 5 V to 16 V
Dual-supply operation: ±2.5 V to ±8 V
Low noise: 8 nV/√Hz @ 10 kHz
Wide bandwidth: 4 MHz
Rail-to-rail output
Unity-gain stable
Lead-free packaging
Qualified for automotive applications
Sensor amplification
Reference buffers
Medical equipment
Physiological measurements
Signal filters and conditioning
Consumer audio
Photodiode amplification
ADC driver
Level shifting circuits
(Picture: Pinout)
Number of Channels per Chip
4 Channels
Input Offset Voltage
600 uV
Gain Bandwidth Product
4 MHz
Operating Supply Voltage
5 V to 16 V
Supply Current
1.55 mA
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Package / Case
SOIC-14
Packaging
Reel
Available Set Gain
108 dB
Dual Supply Voltage
+/- 3 V, +/- 5 V
Maximum Dual Supply Voltage
+/- 8 V
Minimum Dual Supply Voltage
+/- 2.5 V
Series
AD8668
Slew Rate
3.5 V/us at 5 V
Supply Voltage Max
16 V
Supply Voltage Min
5 V
ModelsDescriptionOperation
AD8664ARZOperational Amplifiers (Op Amps) ; Rail-to-Rail Op Amps, AD, SOP14Compare
AD8666ARZLinear - Amplifiers - Instrumentation, OP Amps, Buffer Amps, AD, SOIC-8Compare
AD8667ARMZOperational Amplifiers (Op Amps) ; Rail-to-Rail Op Amps, AD, MSOP-8Compare
AD8667ARMZ-REELOperational Amplifiers (Op Amps) ; Rail-to-Rail Op Amps, AD, MSOP-8Compare
AD8667ARZOperational Amplifiers (Op Amps) ; Rail-to-Rail Op Amps, AD, SOP8Compare
AD8656ARZ-REEL7Operational Amplifiers (Op Amps) ; Rail-to-Rail Op Amps, AD, SOIC-8Compare