Converting a Single-Ended Signal with the AD7984 Differential PulSAR ADC (cn0033)

There are many applications that require a single-ended analog signal, either bipolar or unipolar, to be converted by a high resolution, differential input ADC. This dc-coupled circuit converts a single-ended input signal to a differential signal suitable for driving the AD7984, an 18-bit, 1.33 MSPS member of the PulSAR family of ADCs. This circuit uses the ADA4941-1 single-ended-to-differential driver and the ADR435 ultralow noise 5.0 V voltage reference. The circuit can accept many types of single-ended input signals, including bipolar or unipolar, ranging from high voltage to low voltage. Direct coupling is maintained throughout. If board space is at a premium, all the ICs shown in Figure 1 come in small packages, either 3 mm × 3 mm LFCSP or 3 mm × 5 mm MSOP.


Figure 1: Single-Ended-to-Differential DC-Coupled Driver Circuit (Simplified Schematic)

Возможности

  • Single ended to differential conversion
  • DC coupled high performance
  • Circuit optimized for board space

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Производитель: Analog Devices Inc.
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AD7984BRMZ
AD7984BRMZ
Analog Devices Inc.
Арт.: 1901983 PDF RD
Доступно: 2561 шт.
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Analog to Digital Converters - ADC 18B 1.33MSPS 10.5mW
AD7984BRMZ
2561 шт.
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AD7984BCPZ-RL7
AD7984BCPZ-RL7
Analog Devices Inc.
Арт.: 2388890 PDF RD
Доступно: 8096 шт.
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Analog to Digital Converters - ADC 18B 1.33MSPS 10.5mW
AD7984BCPZ-RL7
8096 шт.
(под заказ)
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