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Tektronix

Tektronix ADA400A

Differential PreAmplifier
1x, 10x, 100x, 1000x Differential Gain
DC to 1 MHz (1x gain), DC to 100 kHz (1000x gain) Bandwidth
±10V (1x), ±1V (10x), ±100mV (100x), ±10mV (1000x) Input Voltage Range
Greater than 80 dB at DC (1000x gain) Common Mode Rejection Ratio (CMRR)
±15V differential, ±200V common mode (CAT I) Maximum Input Voltage
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Attribute Value
Differential Gain 1x, 10x, 100x, 1000x
Bandwidth DC to 1 MHz (1x gain), DC to 100 kHz (1000x gain)
Input Voltage Range ±10V (1x), ±1V (10x), ±100mV (100x), ±10mV (1000x)
Common Mode Rejection Ratio (CMRR) Greater than 80 dB at DC (1000x gain)
Maximum Input Voltage ±15V differential, ±200V common mode (CAT I)
Input Impedance 100 MΩ, 6 pF (each input to ground)
Output Voltage ±10V into 1 MΩ load
Power Supply Powered via TekProbe interface (compatible Tektronix oscilloscopes)
Connector Interface TekProbe BNC interface for automatic scaling and unit readout
Operating Temperature 0°C to +50°C
Tektronix ADA400A Options:
  • ADA400A - P6101B - 1X, 15 MHz Passive Voltage Probe
  • ADA400A - 1103 - TekProbe Power Supply (for use with non-TekProbe BNC Scopes)
  • ADA400A - P6046 - 100 MHz, Active Differential Probe
  • ADA400A - P5200 - 25 MHz, 1300 V Differential Probe
  • ADA400A - P6135A - 10X, 500 V, 150 MHz Differential Probe Pair
Calibration Form Tektronix ADA400A

Repair Form Tektronix ADA400A
Maximum file size: 40MB

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ModelADA400A

The Tektronix ADA400A Differential Preamplifier is engineered for precision measurements of low amplitude, non-ground-referenced signals directly via oscilloscope. It features high input impedance to prevent measurement disturbance and offers selectable bandwidth limiting for reduced noise from digital or power supply sources.

It supports high gain with excellent common mode rejection, making it ideal for noisy environments. The offset adjustment and infinite impedance mode enhance flexibility and accuracy for sensitive applications.

Testwall can supply the used Tektronix ADA400A Differential Preamplifier, fully tested. With expert support and global delivery, Testwall ensures high-performance instrumentation with unmatched reliability and service quality. Please contact us directly if you need calibration or repair of the Tektronix ADA400A Differential Preamplifier.

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