产品概览
The Analog Devices AD7779ACPZ-RL is an 8-channel, 24-bit simultaneous sampling sigma-delta ADC with programmable gain amplifiers and a sampling rate converter. Packaged in a 64-lead LFCSP (9 x 9 mm), it delivers 108 dB SNR at 16 kSPS per channel and is designed for precision measurement applications including power metering, industrial process control, and data acquisition systems.
主要规格
| Resolution | 24-bit |
| 渠道 | 8 simultaneous sampling |
| Output Data Rate | Up to 16 kSPS per channel |
| SNR / Dynamic Range | 108 dB (high-resolution mode) |
| PGA Gain | 1, 2, 4, 8 |
| Interface | SPI + dedicated data output |
| 电源电压 | 3.3 V or ±1.65 V analog; 1.8 V to 3.6 V digital |
| 包装 | 64-Lead LFCSP (9 x 9 mm w/ EP) |
特点
- 8-channel simultaneous sampling with 24-bit resolution
- Per-channel programmable gain amplifier (1/2/4/8)
- Sampling rate converter (SRC) for coherent sampling
- Low latency sinc3 filter path
- On-chip 2.5 V reference with 10 ppm/°C tempco
- Diagnostic SAR ADC for system monitoring
- High-resolution and low-power operating modes
应用
- Circuit breaker / power metering
- Industrial process control
- EEG and medical instrumentation
- General-purpose data acquisition
- Functional safety systems