| Resolution (Bits) | 12 |
| Number of input channels | 1 |
| Sample rate (Max) (kSPS) | 40 |
| Interface type | Byte-Wide, Parallel, SPI |
| Architecture | SAR |
| Input type | Single-Ended |
| Rating | Catalog |
| Reference mode | Ext, Int |
| Input range (Max) (V) | 10 |
| Input range (Min) (V) | -10 |
| Features | Daisy-Chainable, Oscillator |
| Operating temperature range (C) | -40 to 85 |
| Power consumption (Typ) (mW) | 155 |
| Analog voltage AVDD (Min) (V) | 4.75 |
| SNR (dB) | 74 |
| Analog voltage AVDD (Max) (V) | 5.25 |
| INL (Max) (+/-LSB) | 0.45 |
| Digital supply (Min) (V) | 4.75 |
| Digital supply (Max) (V) | 5.25 |
- 40-kHz Min Sampling Rate
- 4-V, 5-V, and ±10-V Input Ranges
- 73.9-dB SINAD with 10-kHz Input
- ±0.45 LSB Max INL
- ±0.45 LSB Max DNL, 12-Bit No Missing Codes
- ±5-mV BPZ, ±0.5 PPM/°C BPZ Drift
- SPI Compatible Serial Output With Daisy-Chain (TAG), SPI Master/Slave Feature
- Single 5-V Analog Supply
- Pin-Compatible With ADS7806 and 16-Bit ADS7807/8507
- Uses Internal or External 2.5-V Reference
- Low Power Dissipation
- 24 mW Typ, 30 mW Max at 40 KSPS
- 50-μW Max Power Down Mode
- 28-Pin SO Package
- Full Parallel Interface
- 2’s Comp or BTC Output Code
- APPLICATIONS
- Industrial Process Control
- Test Equipment
- Medical Equipment
- Data Acquisition Systems
- Digital Signal Processing
- Instrumentation
QSPI, SPI are trademarks of Motorola.
The ADS8506 is a complete low power, single 5-V supply, 12-bit sampling analog-to-digital (A/D) converter. It contains a complete 12-bit capacitor-based, successive approximation register (SAR) A/D converter with sample and hold, clock, reference, and data interface. The converter can be configured for a variety of input ranges including ±10 V, 4 V, and 5 V. For most input ranges, the input voltage can swing to 25 V or ?25 V without damage to the converter.
A SPI compatible serial interface allows data to be synchronized to an internal or external clock. A full parallel interface with BYTE select is also provided to allow the maximum system design flexibility. The ADS8506 is specified at 40 kHz sampling rate over the industrial ?40°C to 85°C temperature range.