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

Data Sheet, Rev. A, 5/07

Part#	Small Signal Bandwidth	Slew Rate	Vos	Ib	V Noise Density	Amplifiers Per Package	Widest Temp Range (°C)
AD8539	430KHz	400mV/µs	5µV	15pA	50nV/rtHz	2	-40 to +125
AD8552	1.5MHz	400mV/µs	1µV	10pA	42nV/rtHz	2	-40 to +125
AD8538	430KHz	400mV/µs	5µV	15pA	50nV/rtHz	1	-40 to +125
AD8554	1.5MHz	400mV/µs	1µV	10pA	42nV/rtHz	4	-40 to +125
AD8551	1.5MHz	400mV/µs	1µV	10pA	42nV/rtHz	1	-40 to +125
AD8572	1.5MHz	400mV/µs	1µV	10pA	51nV/rtHz	2	-40 to +125
AD8629	2.5MHz	1V/µs	1µV	30pA	22nV/rtHz	2	-40 to +125
AD8642	3.5MHz	3V/µs	50µV	250fA	27.5nV/rtHz	2	-40 to +125
ADA4000-2	5MHz	20V/µs	200µV	5pA	16nV/rtHz	2	-40 to +125
AD8606	10MHz	5V/µs	20µV	200fA	6.5nV/rtHz	2	-40 to +125
AD8666	4MHz	3.5V/µs	600µV	200fA	10nV/rtHz	2	-40 to +125

The model number is a specific version of a generic that can be purchased or sampled.

Status indicates the current lifecycle of the product. This can be one of 4 stages:

• Pre-Release: The model has not been released to general production, but samples may be available.
• Production: The model is currently being produced, and generally available for purchase and sampling.
• Last Time Buy: The model has been scheduled for obsolescence, but may still be purchased for a limited time.
• Obsolete: The specific part is obsolete and no longer available. Other models listed in the table may still be available (if they have a status that is not obsolete).

The package for this IC (i.e. DIP, SOIC, BGA). An Evaluation Board is a board engineered to show the performance of the model, the part is included on the board.

For detailed drawings and chemical composition please consult our  Package Site

Pin Count is the number of pins, balls, or pads on the device. Pin-out diagrams & pin function descriptions may be found in the datasheet.

This is the acceptable operating range of the device. The various ranges specified are as follows:

• Commercial: 0 to +70 degrees Celsius
• Military : -55 to +125 degrees Celsius
• Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
• Automotive: -40 to +125 degrees Celsius

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

This is the date Analog Devices, Inc. anticipates that the product will ship from the warehouse. Most orders ship within 48 hours of this date.Once an order has been placed, Analog Devices, Inc. will send an Order Acknowledgement email to confirm your delivery date. It is important to note the scheduled dock date on the order entry screen. We do take orders for items that are not in stock, so delivery may be scheduled at a future date. Also, please note the warehouse location for the product ordered. We have warehouses in the United States, Europe and Southeast Asia. Transit times from these sites may vary.

Due to environmental concerns, ADI offers many of our products in lead-free versions. For more information about lead-free parts, please consult our Pb (Lead) free information page.