PDAC91001PFBT
18-bit monotonic DAC with ultra-low noise, low glitch and exceptional THD
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.