AD8691 Low Noise, Low Cost Single, CMOS Rail-to-Rail Output Operational Amplifier

The AD8691, AD8692, and AD8694 are low cost, single, dual, and quad rail-to-rail output, single-supply amplifiers featuring low offset and input voltages, low current noise, and wide signal bandwidth. The combination of low offset, low noise, very low input bias currents, and high speed make these amplifiers useful in a wide variety of applications. Filters, integrators, photodiode amplifiers, and high impedance sensors all benefit from this combination of performance features. Audio and other ac applications benefit from the wide bandwidth and low distortion of these devices.

Applications for these amplifiers include power amplifier (PA) controls, laser diode control loops, portable and loop-powered instrumentation, audio amplification for portable devices, and ASIC input and output amplifiers.

The small SC70 and TSOT package options for the AD8691 allow it to be placed next to sensors, thereby reducing external noise pickup.

The AD8691, AD8692, and AD8694 are specified over the extended industrial temperature range of −40°C to +125°C. The AD8691 single is available in 5-lead SC70 and 5-lead TSOT packages. The AD8692 dual is available in 8-lead MSOP and narrow SOIC surface-mount packages. The AD8694 quad is available in 14-lead TSSOP and narrow 14-lead SOIC packages. See ordering guide for automotive grades.

Applications

Photodiode amplification
Battery-powered instrumentation
Medical instruments
Multipole filters
Sensors
Portable audio devices

Features and Benefits

Offset voltage: 400 μV typical

Low offset voltage drift: 6 μV/°C maximum (AD8692/AD8694)

Very low input bias currents: 1 pA maximum

Low noise: 8 nV/√Hz

Qualified for Automotive Applications

Low distortion: 0.0006%

Wide bandwidth: 10 MHz

Unity-gain stable

Single-supply operation: 2.7 V to 6 V

Amplifiers

SPICE Models

AD8691 SPICE Macro Model .CIR

Data Sheets

Document	note
AD8691/AD8692/AD8694: Low Cost, Low Noise, CMOS, RRO Operational Amplifiers Data Sheet (Rev. F)	PDF 432 kB

Product Highlight

Document	note
Amplifier pricing where you want it,	PDF 1037 kB

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
AD8691AKSZ-R2 Production	5 ld SC70	REEL 250	-40 to 125C	0.9	0.9	Y
AD8691AKSZ-REEL7 Production	5 ld SC70	REEL 3000	-40 to 125C	0	0.48	Y
AD8691AUJZ-R2 Production	5 ld TSOT	REEL 250	-40 to 125C	0.9	0.9	Y
AD8691AUJZ-REEL7 Production	5 ld TSOT	REEL 3000	-40 to 125C	0	0.48	Y
AD8691WAUJZ-R7 Production	5 ld TSOT	REEL 3000	-40 to 125C	0	0.64	Y
AD8691WAUJZ-RL Production	5 ld TSOT	REEL 10000	-40 to 125C	0	0.64	Y

Evaluation Boards

Part Number	Description	Price	RoHS
EVAL-PRAOPAMP-1KSZ	Single KS-5 lead SC70 Evaluation Board	20.19	Y
EVAL-PRAOPAMP-1RJZ	Single RJ-5 lead SOT23 Evaluation Board	20.19	Y
EVAL-PRAOPAMP-1RMZ	Single RM-8 lead MSOP Evaluation Board	20.19	Y
EVAL-PRAOPAMP-1RZ	Single R-8 lead SOIC Evaluation Board	20.19	Y