ADA4051-2 1.8V, µPower, Zero-Drift, RRIO Dual Amplifier

The ADA4051-1/ADA4051-2 are CMOS, micropower, zerodrift operational amplifiers utilizing an innovative chopping technique. These amplifiers feature rail-to-rail input/output swing and extremely low offset voltage while operating from a 1.8 V to 5.5 V power supply. In addition, these amplifiers offer high power supply rejection ratio (PSRR) and common-mode rejection ratio (CMRR) while operating with a typical supply current of 13 μA per amplifier. This combination of features makes the ADA4051-1/ADA4051-2 amplifiers ideal choices for battery-powered applications where high precision and low power consumption are important.

The ADA4051-1/ADA4051-2 are specified for the extended industrial temperature range of −40°C to +125°C. The ADA4051-1 amplifier is available in 5-lead SOT-23 and 5-lead SC-70 packages. The ADA4051-2 amplifier is available in an 8-lead MSOP and an 8-lead LFCSP.

The ADA4051-1/ADA4051-2 are members of a growing series of zero-drift op amps offered by Analog Devices, Inc.

Applications

Features and Benefits

Very low supply current: 13 μA typical

Low offset voltage: 15 μV maximum

Offset voltage drift: 20 nV/°C

Single-supply operation: 1.8 V to 5.5 V

High PSRR: 110 dB minimum

High CMRR: 110 dB minimum

Rail-to-rail input/output

Unity-gain stable

Extended industrial temperature range

Amplifiers

SPICE Models

ADA4051 SPICE Macro Model .CIR

Reference Designs

CN0188 Design & Integration Files .ZIP

Data Sheets

Document	note
ADA4051-1/ADA4051-2: 1.8 V, Micropower, Zero-Drift, Rail-to-Rail Input/Output Op Amps Data Sheet (Rev. C)	PDF 647.64 K

Application Notes

Document	note
AN-1114: Lowest Noise Zero-Drift Amplifier Has 5.6 nV/√Hz Voltage Noise Density (Rev. B)	PDF 182 kB

Technical Books

Document	note

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
ADA4051-2ACPZ-R2 Production	8 ld LFCSP (3x3mm 1.74x1.45mm EP)	REEL 250	-40 to 125C	2.48	2.48	Y
ADA4051-2ACPZ-R7 Production	8 ld LFCSP (3x3mm 1.74x1.45mm EP)	REEL 1500	-40 to 125C	0	1.47	Y
ADA4051-2ACPZ-RL Last Time Buy	8 ld LFCSP (3x3mm 1.74x1.45mm EP)	REEL 5000	-40 to 125C	0	0	Y
ADA4051-2ARMZ Production	8 ld MSOP	OTH 50	-40 to 125C	1.8	1.47	Y
ADA4051-2ARMZ-R7 Production	8 ld MSOP	REEL 1000	-40 to 125C	0	1.47	Y
ADA4051-2ARMZ-RL Production	8 ld MSOP	REEL 3000	-40 to 125C	0	1.47	Y

Evaluation Boards

Part Number	Description	Price	RoHS
EVAL-PRAOPAMP-2CPZ	Dual CP-8 lead LFCSP Evaluation Board	20.19	Y
EVAL-PRAOPAMP-2RMZ	Dual RM-8 lead MSOP Evaluation Board	20.19	Y
EVAL-PRAOPAMP-2RZ	Dual R-8 lead SOIC Evaluation Board	20.19	Y