Overview
The ADS8345N/1K, manufactured by Texas Instruments, is an 8-channel, 16-bit sampling Analog-to-Digital (A/D) converter. It features a synchronous serial interface and is designed for low-power, high-speed applications. The device operates on a single supply voltage ranging from 2.7V to 5V and has a typical power dissipation of 8mW at a 100kHz throughput rate. It includes a shutdown mode that reduces power dissipation to under 15µW, making it ideal for battery-powered systems such as personal digital assistants, portable multi-channel data loggers, and measurement equipment.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 16 |
| Number of Channels | 8 (single-ended), 4 (differential) |
| Sampling Rate | Up to 100kHz |
| Input Type | Single-ended, Differential |
| Data Interface | SPI |
| Supply Voltage | 2.7V to 5V |
| Operating Temperature Range | -40°C to +85°C |
| Package | 20-SSOP (0.209", 5.30mm Width) |
| Reference Type | External |
| SINAD | 85dB |
Key Features
- 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
- Shutdown mode reducing power dissipation to under 15µW
Applications
- Data acquisition
- Test and measurement equipment
- Industrial process control
- Personal digital assistants
- Battery-powered systems
Q & A
- What is the resolution of the ADS8345N/1K?
The ADS8345N/1K has a resolution of 16 bits. - What is the maximum sampling rate of the ADS8345N/1K?
The maximum sampling rate is up to 100kHz. - What types of input does the ADS8345N/1K support?
The device supports both single-ended and differential inputs. - What is the operating temperature range of the ADS8345N/1K?
The operating temperature range is -40°C to +85°C. - What is the typical power dissipation of the ADS8345N/1K?
The typical power dissipation is 8mW at a 100kHz throughput rate and a +5V supply. - Does the ADS8345N/1K have a shutdown mode?
Yes, it includes a shutdown mode that reduces power dissipation to under 15µW. - What is the SINAD of the ADS8345N/1K?
The SINAD is 85dB. - What package options are available for the ADS8345N/1K?
The device is available in QSOP-20 and SSOP-20 packages. - Is the ADS8345N/1K compatible with other Texas Instruments ADCs?
Yes, it is PIN-for-PIN compatible with the ADS7844 and ADS8344. - What is the reference voltage range for the ADS8345N/1K?
The reference voltage (VREF) can be varied between 500mV and VCC/2.
