The AD7667 is a 16-bit 1 MSPS PulSAR® unipolar ADC with a 2.5V internal reference voltage and maximum drift of 15 ppm/°C. It features a throughput of 1 MSPS and provides 16-bit resolution with no missing codes. The ADC is suitable for applications such as data acquisition, medical instruments, digital signal processing, battery-powered systems, and process control.
The AD7667 is a 16‑bit, 1 MSPS PulSAR® unipolar ADC that operates from a single 5 V supply. It includes an internal 2.5 V reference, error‑correction circuitry, and supports both parallel and serial (SPI/QSPI/MICROWIRE/DSP compatible) interfaces.
Key features include three throughput modes (Warp 1 MSPS, Normal 800 kSPS, Impulse 666 kSPS), low power dissipation (as low as 130 µW at 1 kSPS), and a specified operating temperature range of –40 °C to +85 °C.
| Resolution | 16 Bits |
|---|---|
| Analog Input Voltage Range | 0 V to 2.5 V |
| Maximum Throughput (Warp mode) | 1 MSPS |
| Integral Nonlinearity (INL) | ±2.0 LSB max |
| Signal‑to‑Noise Ratio (S/(N+D)) | 88 dB min @20 kHz |
| Total Harmonic Distortion (THD) | –96 dB max @20 kHz |
| Internal Reference Voltage | 2.5 V ±0.08 % of FSR |
| Operating Temperature Range | –40 °C to +85 °C |
The AD7667 can sample at up to 1 MSPS in Warp mode, 800 kSPS in Normal mode, and 666 kSPS in Impulse mode.
The device operates from a single 5 V supply (AVDD = DVDD = 5 V).
Yes, it includes a 2.5 V internal reference with typical drift of 3 ppm/°C.
The ADC supports both parallel and serial interfaces (SPI/QSPI/MICROWIRE/DSP compatible) with 5 V/3 V logic levels.