The ADC124S051 is a low-power, four-channel CMOS 12-bit analog-to-digital converter with a high-speed serial interface. Unlike the conventional practice of specifying performance at a single sample rate only, the ADC124S051 is fully speci- fied over a sample rate range of 200 kSPS to 500 kSPS. The converter is based on a successive-approximation register architecture with an internal track-and-hold circuit. It can be configured to accept up to four input signals at inputs IN1 through IN4. The output serial data is straight binary, and is compatible with several standards, such as SPI™, QSPI™, MICROW- IRE and many common DSP serial interfaces.
The ADC124S051 is a CMOS 12‑bit A/D converter that operates from a single supply of +2.7 V to +5.25 V. It supports four analog inputs (IN1‑IN4) and provides straight‑binary serial output compatible with SPI, QSPI and MICROWIRE interfaces. The device is offered in a 10‑lead MSOP package and is rated for industrial temperature operation from –40 °C to +85 °C.
Key features include a sample‑rate range of 200 kSPS to 500 kSPS, typical power consumption of 3.0 mW at 3 V and 10.0 mW at 5 V, DNL of +0.7/‑0.4 LSB, INL of ±0.5 LSB, and an SNR of 72.5 dB. Detailed electrical characteristics, timing diagrams, and application circuits are provided for designers.
| Resolution | 12 bits |
|---|---|
| Sample Rate Range | 200 kSPS to 500 kSPS |
| Supply Voltage | +2.7 V to +5.25 V |
| Differential Non‑Linearity (DNL) | +0.7 / –0.4 LSB (typ) |
| Integral Non‑Linearity (INL) | ±0.5 LSB (typ) |
| Signal‑to‑Noise Ratio (SNR) | 72.5 dB (typ) |
| Package | 10‑lead MSOP |
| Input Channels | Four (IN1‑IN4) |
It operates from a single supply that can range from +2.7 V to +5.25 V.
The device provides four input channels, labeled IN1 through IN4.