Overview
The ADS8345EB, produced by Texas Instruments, is a 16-bit, 8-channel serial output sampling Analog-to-Digital (A/D) converter. This device is designed for high-speed and low-power applications, making it ideal for battery-operated systems such as personal digital assistants, portable multi-channel data loggers, and measurement equipment. The ADS8345EB features a synchronous serial interface and operates from a single supply voltage ranging from 2.7V to 5V. It includes an onboard multiplexer and supports both single-ended and differential input configurations.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 16 | Bits |
| Number of Channels | 8 (single-ended) or 4 (differential) | |
| Conversion Rate | Up to 100kHz | |
| SINAD (Signal-to-Noise and Distortion Ratio) | 85dB | |
| Supply Voltage | 2.7V to 5V | V |
| Power Dissipation (typical at 100kHz and +5V supply) | 8mW | mW |
| Operating Temperature Range | -40°C to +85°C | °C |
| Package Types | QSOP-20, SSOP-20 | |
| Reference Voltage Range | 500mV to VCC/2 | V |
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
- Shutdown mode reducing power dissipation to under 15µW
- Available in QSOP-20 and SSOP-20 packages
Applications
- Data acquisition
- Test and measurement equipment
- Industrial process control
- Personal digital assistants
- Battery-powered systems
- Portable multi-channel data loggers
- Measurement equipment
Q & A
- What is the resolution of the ADS8345EB?
The ADS8345EB has a resolution of 16 bits.
- What are the supported input configurations for the ADS8345EB?
The device supports both single-ended (8 channels) and differential (4 channels) input configurations.
- What is the maximum conversion rate of the ADS8345EB?
The maximum conversion rate is up to 100kHz.
- What is the typical power dissipation of the ADS8345EB at 100kHz and +5V supply?
The typical power dissipation is 8mW.
- What are the package types available for the ADS8345EB?
The device is available in QSOP-20 and SSOP-20 packages.
- What is the operating temperature range of the ADS8345EB?
The operating temperature range is -40°C to +85°C.
- Can the ADS8345EB operate in shutdown mode?
Yes, the device includes a shutdown mode that reduces power dissipation to under 15µW.
- What is the reference voltage range for the ADS8345EB?
The reference voltage can be varied between 500mV and VCC/2.
- Is the ADS8345EB compatible with other Texas Instruments models?
Yes, it is PIN-for-PIN compatible with the ADS7844 and ADS8344.
- What type of interface does the ADS8345EB use?
The device uses a synchronous serial interface.
