| Resolution (Bits) | 16 |
| Number of input channels | 8 |
| Sample rate (Max) (kSPS) | 100 |
| Interface type | SPI |
| Architecture | SAR |
| Input type | Differential |
| Multi-channel configuration | Multiplexed |
| Rating | Catalog |
| Reference mode | Ext |
| Input range (Max) (V) | 2.6 |
| Input range (Min) (V) | 0 |
| Operating temperature range (C) | -40 to 85 |
| Power consumption (Typ) (mW) | 3.2 |
| Analog voltage AVDD (Min) (V) | 2.7 |
| SNR (dB) | 85.5 |
| Analog voltage AVDD (Max) (V) | 5.25 |
| INL (Max) (+/-LSB) | 6 |
| Digital supply (Min) (V) | 2.7 |
| Digital supply (Max) (V) | 5.25 |
- BIPOLAR INPUT RANGE
- PIN-FOR-PIN COMPATIBLE WITH THE ADS7844 AND ADS8344
- SINGLE SUPPLY: 2.7V to 5V
- 8-CHANNEL SINGLE-ENDED OR 4-CHANNEL DIFFERENTIAL INPUT
- UP TO 100kHz CONVERSION RATE
- 85dB SINAD
- SERIAL INTERFACE
- QSOP-20 AND SSOP-20 PACKAGES
- APPLICATIONS
- DATA ACQUISITION
- TEST AND MEASUREMENT EQUIPMENT
- INDUSTRIAL PROCESS CONTROL
- PERSONAL DIGITAL ASSISTANTS
- BATTERY-POWERED SYSTEMS
The ADS8345 is an 8-channel, 16-bit, sampling Analog-to-Digital (A/D) converter with a synchronous serial interface. Typical power dissipation is 8mW at a 100kHz throughput rate and a +5V supply. The reference voltage (VREF) can be varied between 500mV and VCC/2, providing a corresponding input voltage range of ±VREF. The device includes a shutdown mode which reduces power dissipation to under 15μW. The ADS8345 is ensured down to 2.7V operation.
Low-power, high-speed, and an onboard multiplexer make the ADS8345 ideal for battery-operated systems such as personal digital assistants, portable multi-channel data loggers, and measurement equipment. The serial interface also provides low-cost isolation for remote data acquisition. The ADS8345 is available in a QSOP-20 or SSOP-20 package and is ensured over the ?40°C to +85°C temperature range.