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PDAC91001PFBT

18-bit monotonic DAC with ultra-low noise, low glitch and exceptional THD

Availability: 60

Packaging

Package | PIN: TQFP (PFB) | 48
Temp: Q (-40 to 125)
Package qty | Carrier: 250 | SMALL T&R
Qty Price
1-99 $35.51
100-249 $31.56
250-999 $25.94
1,000+ $23.21

Features

  • 20-bit monotonic: 1-LSB DNL (max)
  • Integral linearity: 4-LSB INL (max)
  • Low noise: 7nV/√Hz
  • Code independent low glitch:
    1 nV-s
  • Excellent THD: –105 dB at 1-kHz fOUT
  • Fast settling: 1 µs
  • Flexible output ranges: VREFPF to VREFNF
  • Integrated, precision feedback resistors
  • 50-MHz, 4-wire SPI-compatible interface
    • Readback
    • Daisy-chain
  • Temperature range: –40°C to +125˚C
  • Package: 48-pin TQFP

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Texas Instruments  PDAC91001PFBT

The 20-bit DAC11001A, 18-bit DAC91001, and 16-bit DAC81001 (DACx1001) are highlyaccurate, low-noise, voltage-output, single-channel, digital-to-analog converters (DACs). TheDACx1001 are specified monotonic by design, and offer excellent linearity of less than 4 LSB (max)across all ranges.

The unbuffered voltage output offers low noise performance (7nV/√Hz) in combination with a fast settling time (1µs), making this devicean excellent choice for low-noise, fast control-loop, and waveform generation applications. TheDACx1001 integrates an enhanced deglitch circuit with code-independent ultra-low glitch (1 nV-s) toenable clean waveform ramps with ultra-low total harmonic distortion (THD).

The DACx1001 devices incorporate a power-on-reset circuit so that the DAC powers withknown values in the registers. With external references, DAC output ranges fromVREFPF to VREFNF can be achieved, includingasymmetric output ranges.

The DACx1001 use a versatile 4–wire serial interface that operates at clock rates of upto 50 MHz. The DACx1001 is specified over the industrial temperature range of –40°C to+125°C.