ADA4000-2 Dual, Low Cost, Precision JFET Input Operational Amplifier

The ADA4000-1 / ADA4000-2 / ADA4000-4 are junction field effect transistor (JFET) input operational amplifiers featuring precision, very low bias current, and low power. Combining high input impedance, low input bias current, wide bandwidth, fast slew rate, and fast settling time, the ADA4000-1 / ADA4000-2 / ADA4000-4 are ideal amplifiers for driving analog-to-digital inputs and buffering digital-to-analog converter outputs. The input common-mode voltage includes the positive power supply, which makes the device an excellent choice for high-side signal conditioning.

Additional applications for the ADA4000-1 / ADA4000-2 / ADA4000-4 include electronic instruments, automated test equipment (ATE) amplification, buffering, integrator circuits, instrumentation-quality photodiode amplification, and fast precision filters (including phase-locked loop filters). The devices also include utility functions, such as reference buffering, level shifting, control input/output interface, power supply control, and monitoring functions.

Applications

Features and Benefits

High slew rate: 20 V/μs

Fast settling time

Low offset voltage: 1.70 mV maximum

Bias current: 40 pA maximum

±4 V to ±18 V operation

Low voltage noise: 16 nV/√Hz

Unity gain stable

Common-mode voltage includes +VS

Wide bandwidth: 5 MHz

Amplifiers

SPICE Models

ADA4000 SPICE Macro Model .CIR

Data Sheets

Document	note
ADA4000-1/ADA4000-2/ADA4000-4: Low Cost, Precision JFET Input Operational Amplifiers Data Sheet (Rev. B)	PDF 571.1 K

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
ADA4000-2ARMZ Production	8 ld MSOP	OTH 50	-40 to 125C	1.55	1.31	Y
ADA4000-2ARMZ-RL Production	8 ld MSOP	REEL 3000	-40 to 125C	0	1.31	Y
ADA4000-2ARZ Production	8 ld SOIC	OTH 98	-40 to 125C	1.55	1.31	Y
ADA4000-2ARZ-R7 Production	8 ld SOIC	REEL 1000	-40 to 125C	0	1.31	Y
ADA4000-2ARZ-RL Production	8 ld SOIC	REEL 2500	-40 to 125C	0	1.31	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

ADA4000-1/ADA4000-2/ADA4000-4: Low Cost, Precision JFET Input Operational Amplifiers Data Sheet (Rev. B) ada4000-1

ADA4000 SPICE Macro Model ada4000-1