AD515A

Features: ·Ultralow Bias Current: 75 fA max (AD515AL)·Ultralow Bias Current: 150 fA max (AD515AK)·Ultralow Bias Current: 300 fA max (AD515AJ)·Low Power: 1.5 mA max Quiescent Current·Low Power: (0.6 mA typ)·Low Offset Voltage: 1.0 mV max (AD515AK & L)·Low Drift: 15 mV/8C max (AD515AK)·Low Noise...

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SeekIC No. : 004268797 Detail

AD515A: Features: ·Ultralow Bias Current: 75 fA max (AD515AL)·Ultralow Bias Current: 150 fA max (AD515AK)·Ultralow Bias Current: 300 fA max (AD515AJ)·Low Power: 1.5 mA max Quiescent Current·Low Power: (0.6 ...

floor Price/Ceiling Price

Part Number:
AD515A
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/12/24

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Product Details

Description



Features:

·Ultralow Bias Current: 75 fA max (AD515AL)
·Ultralow Bias Current: 150 fA max (AD515AK)
·Ultralow Bias Current: 300 fA max (AD515AJ)
·Low Power: 1.5 mA max Quiescent Current
·Low Power: (0.6 mA typ)
·Low Offset Voltage: 1.0 mV max (AD515AK & L)
·Low Drift: 15 mV/8C max (AD515AK)
·Low Noise: 4 mV p-p, 0.1 Hz to 10 Hz



Description

The AD515A is a monolithic FET-input operational amplifier with a guaranteed maximum input bias current of 75 fA (AD515AL). The AD515A is a monolithic successor to the industry standard AD515 electrometer, and will replace the AD515 in most applications. The AD515A also delivers lasertrimmed offset voltage, low drift, low noise and low power, a combination of features not previously available in ultralow bias current circuits. All devices are internally compensated, protected against latch-up and are short circuit protected.

The AD515A's combination of low input bias current, low offset voltage and low drift optimizes it for a wide variety of electrometer and very high impedance buffer applications including photocurrent detection, vacuum ion-gage measurement, long-term precision integration and low drift sample/hold applications. This amplifier is also an excellent choice for all forms of biomedical instrumentation such as pH/pIon sensitive electrodes, very low current oxygen sensors, and high impedance biological microprobes. In addition, the low cost and pin compatibility of the AD515A with standard FET op amps will allow designers to upgrade the performance of present systems at little or no additional cost. The 1015 W common-mode input impedance ensures that the input bias current is essentially independent of common-mode voltage.

As with previous electrometer amplifier designs from Analog Devices, the case is brought out to its own connection (Pin 8) so it can be independently connected to a point at the same potential as the input, thus minimizing stray leakage to the case. This feature will also shield the input circuitry from external noise and supply transients.

The AD515A is available in three versions of bias current and offset voltage, the "J", "K" and "L"; all are specified for rated performance from 0°C to +70°C and supplied in a hermetically sealed TO-99 package.




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