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Series Information for AD8428ARZ - Analog Devices


  • feature
    Fixed gain of 2000 Access to internal nodes provides flexibility Low noise: 1.5 nV/u221aHz input voltage noise High accuracy dc performance Gain drift: 5 ppm/u00b0C Offset drift: 0.3 u03bcV/u00b0C Gain accuracy: 0.05% CMRR: 140 dB min Excellent ac specifications Bandwidth: 3.5 MHz Slew rate: 40 V/u03bcs Power supply range: u00b14 V to u00b118 V 8-lead SOIC package ESD protection: 5000 V (HBM) Temperature range for specified performance: u221240u00b0C to +85u00b0C Operational up to 125u00b0C



The AD8428 is an ultralow noise instrumentation amplifier designed to accurately measure tiny, high speed signals. It delivers industry-leading gain accuracy, noise, and bandwidth. All gain setting resistors for the AD8428 are internal to the part and are precisely matched. Care is taken in both the chip pinout and layout. This results in excellent gain drift and quick settling to the final gain value after the part is powered on. The high CMRR of the AD8428 prevents unwanted signals from corrupting the signal of interest. The pinout of the AD8428 is designed to avoid parasitic capacitance mismatches that can degrade CMRR at high frequencies. The AD8428 is one of the fastest instrumentation amplifiers available. The circuit architecture is designed for high bandwidth at high gain. The AD8428 uses a current feedback topology for the initial preamplifier gain stage of 200, followed by a difference amplifier stage of 10. This architecture results in a 3.5 MHz bandwidth at a gain of 2000 for an equivalent gain bandwidth product of 7 GHz. The AD8428 pinout allows access to internal nodes between the first and second stages. This feature can be useful for modifying the frequency response between the two amplification stages, thereby preventing unwanted signals from contaminating the output results. The performance of the AD8428 is specified over the industrial temperature range of −40°C to +85°C. It is available in an 8-lead plastic SOIC package.


No. of Amplifiers:
1 Amplifier, 1Amplifiers
Input Offset Voltage:
Slew Rate:
Supply Voltage Range:
± 4V to ± 18V
Amplifier Case Style:
No. of Pins:
Amplifier Output:
Single Ended
Operating Temperature Min:
Operating Temperature Max:
Product Range:
AD8428 Series
Automotive Qualification Standard:
RoHS Phthalates Compliant:
MSL 1 - Unlimited
No SVHC (07-Jul-2017)
Amplifer Supply Voltage:
± 4V to ± 18V
Operating Temperature Range:
-40°C to +125°C
Supply Current:

Alternate Descriptions

RS Components
Instrumentation Amplifier G=2000 SOIC8
Newark Electronics
Instrument Amplifier, 1, 100 V, 50 V/ s, 3.5 MHz, 4V to 18V, SOIC RoHS Compliant: Yes
Richardson RFPD
RS Components UK
Instrumentation Amplifier G=2000 SOIC8
RS Components DE
Instrumentenverstärker AD8428ARZ, Offset 100μV Rail-to-Rail 3.5MHz, CMRR 140dB, SOIC 8-Pin Stromversorgungs-Typ : Dual Montage-Typ : SMD Versorgungsspannung bipolar typ. : ±4 → ±18V Rail to Rail : Rail-to-Rail Input Offsetspannung Eingang max. : 100µV Betriebstemperatur min. : -40 °C Betriebstemperatur max. : +85 °C Eingangswiderstand max. : 4kΩ Versorgungsstrom max. : 6,8 mA Abmessungen : 5 x 4 x 1.5mm, Analog Devices
RS Components HK
Instrumentation Amplifier G=2000 SOIC8
RS Components JP
RS Components FR
Instrumentation Amplifier G=2000 SOIC8
RS Components CN
Instrumentation Amplifier G=2000 SOIC8
RS Components ES
Instrumentation Amplifier G=2000 SOIC8
RS Components NL
Instrumentation Amplifier G=2000 SOIC8
RS Components NO
Instrumentation Amplifier G=2000 SOIC8
RS Components US
Instrumentation Amplifier G=2000 SOIC8
RS Components SG
Instrumentation Amplifier G=2000 SOIC8
RS Components TW
Instrumentation Amplifier G=2000 SOIC8