AD1870 is a single-supply 16-bit single-channel ADC with single 5V power supply, single-ended dual-channel analog inputs, 92 dB (typical) dynamic range, 90 dB (typical) S/(THD + N), 0.006 dB decimator pass-band ripple, fourth-order, 64° oversampling∑-∆ modulator, three-stage, linear-phase decimator, 256 fS or 384 fS input clock, less than 100 µW (typical) power consumption, power-down mode, input overrange indication, on-chip voltage reference, flexible serial output interface, 28-lead SOIC package.
The AD1870 is a single‑supply, 16‑bit stereo analog‑to‑digital converter that uses a fourth‑order sigma‑delta modulator and a three‑stage linear‑phase decimator. It operates from a 5 V supply, offers up to 92 dB typical dynamic range, and provides a flexible serial output interface for master or slave operation.
The document lists detailed electrical specifications, pin descriptions, timing parameters, power consumption, temperature ranges, and recommended external components such as four 470 pF filter capacitors. Typical performance graphs and a functional block diagram illustrate the converter’s audio‑band performance and power‑supply rejection.
| Supply Voltage | 5.0 V |
|---|---|
| Pass‑Band Ripple | 0.006 dB |
| Power‑Down Mode Consumption | < 100 µW |
| Input Voltage HI | 2.4 V |
| Input Voltage LO | 0.8 V |
| Decimation Factor | 64 |
| Operating Temperature Range | -40 °C to +85 °C |
The AD1870 operates from a single 5 V supply.