AD8538 Low Power, Precision, Auto-Zero Op Amp (5-lead TSOT-23)

The AD8538/AD8539 are very high precision amplifiers featuring extremely low offset voltage, low input bias current, and low power consumption. The supply current is less than 215 μA maximum per amplifier at 5.0 V. Operation is fully specified from 2.7 V to 5.0 V single supply (±1.35 V to ±2.5 V dual supply).

The AD8538/AD8539 operate at very low power making these amplifiers ideal for battery-powered devices and portable equipment.

The AD8538/AD8539 are specified over the extended industrial temperature range (−40°C to +125°C). The AD8538 amplifier is available in 5-lead TSOT-23, and 8-lead, narrow body SOIC packages, and the AD8539 amplifier is available in 8-lead, narrow body SOIC and 8-lead MSOP.

Applications

Mobile communications
Portable instrumentation
Battery-powered devices
Sensor interfaces
Temperature measurement
Electronic scales
Qualified for Automotive Applications

Features and Benefits

Low offset voltage: 13 μV maximum

Input offset drift: 0.03 μV/°C

Single-supply operation: 2.7 V to 5.5 V

High gain, CMRR, and PSRR

Low input bias current: 25 pA

Low supply current: 180 μA

Qualified for Automotive Applications

Amplifiers

SPICE Models

AD8538 SPICE Macro Model .CIR

Data Sheets

Document	note
AD8538/AD8539: Low Power, Precision, Auto-Zero Op Amps Data Sheet (Rev. B)	PDF 976 kB

Application Notes

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

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
AD8538ARZ Production	8 ld SOIC	OTH 98	-40 to 125C	1.06	0.5	Y
AD8538ARZ-REEL7 Production	8 ld SOIC	REEL 1000	-40 to 125C	0	0.5	Y
AD8538AUJZ-R2 Production	5 ld TSOT	REEL 250	-40 to 125C	1.47	1.47	Y
AD8538AUJZ-REEL Last Time Buy	5 ld TSOT	REEL 10000	-40 to 125C	0	0	Y
AD8538AUJZ-REEL7 Production	5 ld TSOT	REEL 3000	-40 to 125C	0	0.5	Y
AD8538WAUJZ-R7 Production	5 ld TSOT	REEL 3000	-40 to 125C	0	0.6	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