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OPA625 Datasheet 16-bit Analog-to-digital Converter Drivers

Manufacturer: Texas Instruments

Overview: Product Folder Sample & Buy Technical Documents Tools & Software Support & munity Reference Design OPA625, OPA2625 SBOS688A – APRIL 2015 – REVISED OCTOBER 2015 OPAx625 High-Bandwidth, High-Precision, Low THD+N, 16-Bit.

General Description

The OPAx625 family of operational amplifiers are excellent 16-bit and 18-bit, high-precision, SAR ADC drivers with low THD and noise that allow for a unique power-scalable solution.

This family of devices is fully characterized and specified with a 16-bit settling time of 280 ns that enables a true 16-bit effective number of bits (ENOB).

With a high dc precision of only 100 µV offset voltage, a wide gainbandwidth product of 120 MHz, and a low wideband noise of 2.5 nV/√Hz, this family is optimized for driving high-throughput, high-resolution SAR ADCs, such as the ADS88xx family of SAR ADCs.

Key Features

  • 1 High-Drive Mode:.
  • GBW (G = 100): 120 MHz.
  • Slew Rate: 115 V/µs.
  • 16-Bit Settling at 4-V Step: 280 ns.
  • Low Voltage Noise: 2.5 nV/√Hz at 10 kHz.
  • Low Output Impedance: 1 Ω at 1 MHz.
  • Offset Voltage: ±100 µV (max).
  • Offset Voltage Drift: ±3 µV/ºC (max).
  • Low Quiescent Current: 2 mA (typ).
  • Low-Power Mode:.
  • GBW: 1 MHz.
  • Low Quiescent Current: 270 µA (typ).
  • Power-Scalable Features:.

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