Overview
The ADS8344EB/2K5 is an 8-channel, 16-bit, sampling Analog-to-Digital (A/D) converter produced by Texas Instruments. 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 ADS8344 features a synchronous serial interface and operates on a single supply voltage ranging from 2.7V to 5V. It includes an on-board multiplexer and supports both single-ended and differential input configurations. The device is available in QSOP-20 and SSOP-20 packages and is ensured over the –40°C to +85°C temperature range.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Number of Channels | 8 (single-ended) or 4 (differential) | - |
| Resolution | 16 bits | - |
| Conversion Rate | Up to 100 kHz | - |
| Supply Voltage | 2.7V to 5V | V |
| Power Dissipation | Typical 10 mW at 100 kHz and +5V supply | mW |
| Operating Temperature Range | –40°C to +85°C | °C |
| Package Type | QSOP-20, SSOP-20 | - |
| Reference Voltage Range | 500 mV to VCC | V |
| SINAD (Signal-to-Noise and Distortion Ratio) | 84 dB | dB |
| Data Interface | SPI (Serial Peripheral Interface) | - |
Key Features
- PIN FOR PIN compatibility with ADS7844
- Single supply operation: 2.7V to 5V
- 8-channel single-ended or 4-channel differential input
- Up to 100 kHz conversion rate
- 84 dB SINAD (Signal-to-Noise and Distortion Ratio)
- Synchronous serial interface (SPI compatible)
- Available in QSOP-20 and SSOP-20 packages
- Shutdown mode reducing power dissipation to under 15 µW
- External reference voltage adjustable between 500 mV and VCC
Applications
- Data acquisition systems
- 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 ADS8344EB/2K5?
The resolution of the ADS8344EB/2K5 is 16 bits.
- What is the conversion rate of the ADS8344EB/2K5?
The conversion rate of the ADS8344EB/2K5 is up to 100 kHz.
- What are the supported input configurations for the ADS8344EB/2K5?
The ADS8344EB/2K5 supports both 8-channel single-ended and 4-channel differential input configurations.
- What is the operating temperature range of the ADS8344EB/2K5?
The operating temperature range of the ADS8344EB/2K5 is –40°C to +85°C.
- What is the typical power dissipation of the ADS8344EB/2K5 at 100 kHz and +5V supply?
The typical power dissipation is 10 mW at 100 kHz and +5V supply.
- What is the SINAD (Signal-to-Noise and Distortion Ratio) of the ADS8344EB/2K5?
The SINAD of the ADS8344EB/2K5 is 84 dB.
- What type of data interface does the ADS8344EB/2K5 use?
The ADS8344EB/2K5 uses a synchronous serial interface (SPI compatible).
- What are the available package types for the ADS8344EB/2K5?
The ADS8344EB/2K5 is available in QSOP-20 and SSOP-20 packages.
- How does the shutdown mode affect the power dissipation of the ADS8344EB/2K5?
The shutdown mode reduces the power dissipation to under 15 µW.
- What is the range of the external reference voltage for the ADS8344EB/2K5?
The external reference voltage can be adjusted between 500 mV and VCC.
