ADA4620-1数据手册ADI中文资料规格书

描述 Description

The ADA4620-1 and ADA4620-2 are 36 V, precision,low noise, low offset drift, JFET op amps. The partsoffer the combination of top precision parameters atspeed, and at extended operating range andtemperature. The ADA4620 is ideal for high DCprecision and AC performance. The specificationsmake the ADA4620 optimal as a front-end amplifier ina data-acquisition (DAQ) system, or for a TIA circuitwith high input impedance.

For only 1.3 mA of supply current per amplifier, theADA4620 has a gain-bandwidth product of 16.5 MHz,a 32 V/μs slew rate, 5.1 nV/√Hz of broadband noise,and 225 nV p-p of 0.1 Hz to 10 Hz noise. The inputvoltage range includes the negative supply, and theoutput swings rail-to-rail.

The ADA4620 is specified for operating over thetemperature range of −40°C to +125°C, and dualsupplies ranging from ±2.25 V to ±18 V, or on a singlesupply ranging from +4.5 V to +36 V. The ADA4620-1 and ADA4620-2 are available in an 8-lead SOIC_Npackage.

APPLICATIONS


Transimpedance amplifiers

Electronic test and measurement 

Scientific and field instruments 

Semiconductor test 

Data acquisition systems

High impedance sensors

特性 Features

• Low offset voltage: ±30 μV typ
• Low offset voltage drift: ±0.32 μV/°C typ
• Low input bias current: ±0.8 pA typ, ±5 pA max
• Low 1/f noise: 225 nV p-p, 0.1 Hz to 10 Hz typ
• Voltage noise density: 5.1 nV/√Hz at 1 kHz typ
• Gain bandwidth product: 16 MHz typ
• High slew rate: 32V/μs typ
• Low THD + N: −148 dB at 1 kHz typ
• Low supply current: 1.3 mA per amplifier typ
• Wide power supply range
• Single supply: 4.5 V to 36 V
• Dual supplies: ±2.25 V to ±18 V
• No phase reversal
• Unity-gain stable
• Extended high input common-mode range
• (V+) − 4.4 V < VCM ≤ (V+)
• Multiple channel options:
• ADA4620-1 single channel
• ADA4620-2 dual channel