具有參考、偽雙極和全差動輸入的 16 位 4MSPS 并行 ADC
| Resolution (Bits) | 16 |
| Number of input channels | 1 |
| Sample rate (Max) (kSPS) | 4000 |
| Interface type | Byte-Wide, Parallel |
| Architecture | SAR |
| Input type | Differential |
| Rating | Catalog |
| Reference mode | Ext, Int |
| Input range (Max) (V) | 4.1 |
| Input range (Min) (V) | 4.1 |
| Features | Oscillator |
| Operating temperature range (C) | -40 to 85 |
| Power consumption (Typ) (mW) | 155 |
| Analog voltage AVDD (Min) (V) | 4.75 |
| SNR (dB) | 93 |
| Analog voltage AVDD (Max) (V) | 5.25 |
| INL (Max) (+/-LSB) | 2 |
| Digital supply (Min) (V) | 2.7 |
| Digital supply (Max) (V) | 5.25 |
- Fully Differential Input with Pseudo-Bipolar Input Range -4 V to +4 V
- 16-Bit NMC at 4 MSPS
- 1 LSB INL Typ
- 92dB SNR, -102dB THD Typ with 100-kHz Input
- Internal 4.096-V Reference and Reference Buffer
- REFIN/2 Available for Setting Analog Input Common-Mode Voltage
- Zero Latency
- High-Speed Parallel Interface
- Single Supply Operation Capability
- Low Power: 155 mW at 4 MHz Typ, Flexible Power-Down Scheme
- Pin-Out Similar to ADS8412/8402
- 48-Pin 9×9 TQFP Package
- APPLICATIONS
- DWDM
- Instrumentation
- High-Speed, High-Resolution, Zero Latency Data Acquisition Systems
- Transducer Interface
- Medical Instruments
- Spectrum Analysis
- ATE
The ADS8422 is a 16-bit, 4-MHz A/D converter with an internal 4.096-V reference. The device includes a 16-bit capacitor-based multi-bit SAR A/D converter with inherent sample and hold. This converter includes a full 16-bit interface and an 8-bit option where data is read using two 8-bit read cycles if necessary.
The ADS8422 has a fully differential, pseudo-bipolar input. It is available in a 48-lead TQFP package and is characterized over the industrial -40°C to +85°C temperature range.
