ADA4691-2 Series

Low Power, 3.6 MHz, Low Noise, Rail-to-Rail Output, Operational Amplifiers

Catalog

Low Power, 3.6 MHz, Low Noise, Rail-to-Rail Output, Operational Amplifiers

Part	Number of Circuits	Voltage - Supply Span (Min) [Min]	Voltage - Supply Span (Max) [Max]	Current - Supply	Package / Case	Amplifier Type	Voltage - Input Offset	Supplier Device Package [x]	Supplier Device Package	Supplier Device Package [y]	Gain Bandwidth Product	Output Type	Slew Rate	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Current - Input Bias	Current - Output / Channel
Analog Devices ADA4691-2ACBZ-R7	2	2.7 V	5 V	180 µA	9-UFBGA WLCSP	General Purpose	500 çV	1.21	9-WLCSP	1.22	3.6 MHz	Rail-to-Rail	1.3 V/µs	125 °C	-40 °C	Surface Mount	0.5 pA	55 mA
Analog Devices ADA4691-4ACPZ-RL	4	2.7 V	5 V	180 µA	16-WFQFN Exposed Pad CSP	General Purpose	500 çV		16-LFCSP (3x3)		3.6 MHz	Rail-to-Rail	1.3 V/µs	125 °C	-40 °C	Surface Mount	0.5 pA	55 mA
Analog Devices ADA4691-2ACBZ-RL	2	2.7 V	5 V	180 µA	9-UFBGA WLCSP	General Purpose	500 çV	1.21	9-WLCSP	1.22	3.6 MHz	Rail-to-Rail	1.3 V/µs	125 °C	-40 °C	Surface Mount	0.5 pA	55 mA
Analog Devices ADA4691-2ACPZ-R7	2	2.7 V	5 V	180 µA	10-UFQFN CSP	General Purpose	500 çV		10-LFCSP-UQ (2x2)		3.6 MHz	Rail-to-Rail	1.3 V/µs	125 °C	-40 °C	Surface Mount	0.5 pA	55 mA

Catalog

Low Power, 3.6 MHz, Low Noise, Rail-to-Rail Output, Operational Amplifiers

Key Features

• Low power: 180 μA typical

• Very low input bias currents: 0.5 pA typical

• Low noise: 16 nV/√Hz typical

• 3.6 MHz bandwidth

• Offset voltage: 500 μV typical

• Low offset voltage drift: 4 μV/°C maximum

• Low distortion: 0.003% THD + N

• 2.7 V to 5 V single supply or ±1.35 V to ±2.5 V dual supply

• Available in very small 2 mm × 2 mm LFCSP packages

Description

The ADA4691-2/ADA4692-2are dual and theADA4691-4/ADA4692-4are the quad rail-to-rail output, single-supply amplifiers featuring low power, wide bandwidth, and low noise. The ADA4691-2 has two independent shutdown pins, allowing further reduction in supply current. The ADA4691-4 is a quad with dual shutdown pins each controlling a pair of amplifiers and is available in the 16-lead LFCSP. The ADA4692-4 is a quad version without shutdown.These amplifiers are ideal for a wide variety of applications. Audio, filters, photodiode amplifiers, and charge amplifiers, all benefit from this combination of performance and features. Additional applications for these amplifiers include portable consumer audio players with low noise and low distortion that provide high gain and slew rate response over the audio band at low power. Industrial applications with high impedance sensors, such as pyroelectric and IR sensors, benefit from the high impedance and low 0.5 pA input bias, low offset drift, and enough bandwidth and response for low gain applications.The ADA4691/ADA4692 family is fully specified over the extended industrial temperature range (−40°C to +125°C). The ADA4691-2 is available in a 10-lead LFCSP and a 9-ball WLCSP. The ADA4692-2 is available in an 8-lead SOIC and 8-lead LFCSP. The ADA4691-4 is available in a 16-lead LFCSP. The ADA4692-4 is available in a 14-lead TSSOP.ApplicationsPhotodiode amplifiersSensor amplifiersPortable medical and instrumentationPortable audio: MP3s, PDAs, and smartphonesCommunicationsLow-side current senseADC driverActive filtersSample-and-hold