AD8538| Datasheet

AD8538, AD8539

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Low Power, Precision, Auto-Zero Op Amps AD8538/AD8539
FEATURES
Low offset voltage: 13 V maximum Input offset drift: 0.03 V/ 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 A

PIN CONFIGURATIONS
OUT V +IN
1 5

V+

AD8538
2 3 4

Figure 1. 5-Lead TSOT-23 (UJ-5)

APPLICATIONS
Mobile communications Portable instrumentation Battery-powered devices Sensor interfaces Temperature measurement Electronic scales

NC V+

-IN 2 +IN 3 V-

AD8538

NC = NO CONNECT

Figure 2. 8-Lead SOIC_N (R-8)

GENERAL DESCRIPTION
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 A maximujm 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.

OUT A 1 IN A 2 +IN A 3

V+ OUT B +IN B
06741-033
06741-034

AD8539

7 6 5

TOP VIEW V 4 (Not to Scale)

IN B

Figure 3. 8-Lead SOIC_N (R-8)

OUT A 1 IN A 2 +IN A 3 V 4

AD8539
TOP VIEW (Not to Scale)

V+ OUT B IN B +IN B

7 6 5

Figure 4. 8-Lead MSOP (RM-8)

Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners.

06741-001

6 OUT TOP VIEW 4 (Not to Scale) 5 NC

06741-002

TOP VIEW (Not to Scale)