AD4855 Datasheet Text
Data Sheet AD4855
Buffered, 8-Channel Simultaneous Sampling, 16-Bit 250 kSPS DAS
Features
- plete 16-bit data acquisition system
- Simultaneous sampling of 8 internally buffered channels
- 250 kSPS per channel throughput
- Differential, wide mon-mode range inputs
- ±75 pA typical input leakage at 25°C
- Full-scale input step settling time < 300 ns
- Integrated reference and reference buffer (4.096 V)
- Integrated supply decoupling capacitors
- 27 mW per channel at 250 kSPS, scales with throughput
- Minimal external signal conditioning
- Seamless high dynamic range
- Per sample, per channel automatic gain ranging
- Maintains ppm-level INL
- Per channel SoftSpan input ranges, bipolar or unipolar
- ±40 V, ±25 V, ±20 V, ±12.5 V, ±10 V, ±6.25 V, ±5 V, ±2.5 V
- 0 V to 40 V, 25 V, 20 V, 12.5 V, 10 V, 6.25 V, 5 V, 2.5 V
FUNCTIONAL BLOCK DIAGRAM
- Rail-to-rail input overdrive tolerance
- High performance
- INL: ±160 μV typical (±40 V range)
- SNR: 94.6 dB single-conversion typical (±40 V range)
- DR: 98.1 dB single-conversion typical (±40 V range)
- THD:
- 117 dB typical (±40 V range)
- CMRR: 120 dB typical
- Digital flexibility
- SPI CMOS (0.9 V to 5.25 V) and LVDS serial input and output...