The AD7623 is a 16-bit, 1.33 MSPS PulSAR® ADC that offers high performance with high resolution and high sample rate. It features a SAR architecture with no pipeline delay, low power consumption, and can operate on 5 V, 3.3 V, and 2.5 V power supplies.
The AD7623 is a 16‑bit, 1.33 MSPS PulSAR® analog‑to‑digital converter that operates from a single 2.5 V supply. It features an internal 2.048 V reference, no missing codes, and both parallel (8‑ or 16‑bit) and serial (SPI/QSPI/MICROWIRE/DSP‑compatible) interfaces.
The device is offered in 48‑lead LQFP and LFCSP‑VQ packages and is specified for operation from –40 °C to +85 °C. It is suited for medical instruments, high‑speed data acquisition, DSP, communications, instrumentation, spectrum analysis and ATE applications.
| Resolution | 16 bits |
|---|---|
| Maximum Throughput | 1.33 MSPS |
| Power Dissipation (typical) | 45 mW @ 1.33 MSPS |
| Internal Reference Voltage | 2.048 V |
| Supply Voltage (AVDD/DVDD) | 2.5 V (±5 %) |
| Differential Input Range | ±VREF (VREF up to 2.5 V) |
| Integral Linearity Error (INL) | ±1 LSB typical |
| Signal‑to‑Noise Ratio (SINAD) | 88 dB typical @ 100 kHz |
| Total Harmonic Distortion (THD) | −97 dB typical @ 100 kHz |
The AD7623 can sample at up to 1.33 MSPS.
It includes a 2.048 V internal reference.
Typical power dissipation is 45 mW when operating at 1.33 MSPS.
The device accepts a differential input range of ±VREF, with VREF up to 2.5 V.