The ADA4000-1/ADA4000-2/ADA4000-4 are 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 part an excellent choice for high-side signal conditioning.

Additional applications for the ADA4000-1/ADA4000-2/ ADA4000-4 include electronic instruments, ATE amplification, buffering, integrator circuits, instrumentation-quality photodiode amplification, and fast precision filters (including PLL filters). The parts also include utility functions, such as reference buffering, level shifting, control I/O interface, power supply control, and monitoring functions.

Applications

Reference gain/buffers

Level shift/driving

Active filters

Power line monitoring/control

Current/voltage sense or monitoring

Data acquisition

Sample-and-hold circuits

Integrators

Data Sheet, Rev. 0, 5/07

Part#	Small Signal Bandwidth	Slew Rate	Vos	Ib	V Noise Density	Amplifiers Per Package	Widest Temp Range (°C)
ADA4000-2	5MHz	20V/µs	200µV	5pA	16nV/rtHz	2	-40 to +125
AD8620	25MHz	50V/µs	85µV	2pA	6nV/rtHz	2	-40 to +125
AD8652	50MHz	41V/µs	100µV	1pA	5nV/rtHz	2	-40 to +125
ADA4000-4	5MHz	20V/µs	200µV	5pA	16nV/rtHz	4	-40 to +125
ADA4000-1	5MHz	20V/µs	200µV	5pA	16nV/rtHz	1	-40 to +125
AD8610	25MHz	60V/µs	75µV	2pA	6nV/rtHz	1	-40 to +125
ADTL082	5MHz	20V/µs	1.5mV	2pA	16nV/rtHz	2	-40 to +125
AD8651	50MHz	41V/µs	100µV	1pA	4.5nV/rtHz	1	-40 to +125
AD8028	190MHz	100V/µs	200µV	4µA	4.3nV/rtHz	2	-40 to +125
AD8616	24MHz	12V/µs	23µV	200fA	6nV/rtHz	2	-40 to +125
AD8606	10MHz	5V/µs	20µV	200fA	6.5nV/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• Obsolete: The specific part is obsolete and no longer available.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.

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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.