具有可编程 (±10/±5/±3.3V) 输入范围和并行接口的 16 位、250kSPS、单通道 SAR ADC
| Resolution (Bits) | 16 |
| Number of input channels | 1 |
| Sample rate (Max) (kSPS) | 250 |
| Interface type | Byte-Wide, Parallel |
| Architecture | SAR |
| Input type | Single-Ended |
| Rating | Catalog |
| Reference mode | Ext, Int |
| Input range (Max) (V) | 10 |
| Input range (Min) (V) | -10 |
| Features | Oscillator |
| Operating temperature range (C) | -40 to 85 |
| Power consumption (Typ) (mW) | 155 |
| Analog voltage AVDD (Min) (V) | 4.75 |
| SNR (dB) | 88 |
| Analog voltage AVDD (Max) (V) | 5.25 |
| INL (Max) (+/-LSB) | 1.5 |
| Digital supply (Min) (V) | 4.75 |
| Digital supply (Max) (V) | 5.25 |
- 105dB SFDR at 250-kHz Sample Rate
- Standard ±10-V Input Range
- ±1.5 LSB Max INL
- ±1 LSB Max DNL, 16-Bits No Missing Codes
- ±2 mV Max Bipolar Zero Error With ±0.4 PPM/°C Drift
- ±0.1% FSR Max Full-Scale Error With ±2 PPM/°C Drift
- Single 5-V Supply Operation
- Pin-Compatible With ADS7805 (Low Speed) and 12-Bit ADS8504/7804
- Uses Internal or External Reference
- Full Parallel Data Output
- 70-mW Typ Power Dissipation at 250 KSPS
- 28-Pin SSOP and SOIC Packages
- APPLICATIONS
- Industrial Process Control
- Data Acquisition Systems
- Digital Signal Processing
- Medical Equipment
- Instrumentation
The ADS8505 is a complete 16-bit sampling A/D converter using state-of-the-art CMOS structures. It contains a complete 16-bit, capacitor-based, SAR A/D with S/H, reference, clock, interface for microprocessor use, and 3-state output drivers.
The ADS8505 is specified at a 250-kHz sampling rate over the full temperature range. Precision resistors provide an industry standard ±10-V input range, while the innovative design allows operation from a single +5-V supply, with power dissipation under 100 mW.
The ADS8505 is available in 28-pin SOIC and 28-pin SSOP packages, both fully specified for operation over the industrial -40°C to 85°C temperature range.
