Overview
The ADS7841EB/2K5 is a 12-bit, 4-channel serial output sampling Analog-to-Digital Converter (ADC) produced by Texas Instruments. This device features a synchronous serial interface and is designed for low power consumption and high speed operation. It operates on a single supply voltage ranging from 2.7V to 5V and is suitable for a variety of applications, including data acquisition, test and measurement, industrial process control, and battery-powered systems.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12 bits (programmable to 8 bits) | |
| Number of Channels | 4 (single-ended or 2 differential) | |
| Conversion Rate | Up to 200kHz | |
| Integral Linearity Error (INL) | ±1 LSB | |
| Differential Linearity Error (DNL) | ±1 LSB | |
| SINAD | 72 dB | |
| Supply Voltage | 2.7V to 5V | V |
| Power Dissipation | Typically 2mW at 200kHz and +5V supply | mW |
| Operating Temperature Range | –40°C to +125°C | °C |
| Package | DIP-16 or SSOP-16 |
Key Features
- Single supply operation: 2.7V to 5V
- 4-channel single-ended or 2-channel differential input
- Up to 200kHz conversion rate
- No missing codes
- Low power consumption with shutdown mode reducing power to under 15µW
- Synchronous serial interface
- Programmable resolution: 8 bits or 12 bits
- On-board multiplexer
- Low-cost isolation for remote data acquisition
Applications
- Data acquisition
- Test and measurement
- Industrial process control
- Personal digital assistants
- Battery-powered systems
- Portable multi-channel data loggers and measurement equipment
Q & A
- What is the resolution of the ADS7841EB/2K5? The resolution is 12 bits, but it can be programmable to 8 bits.
- How many channels does the ADS7841EB/2K5 have? It has 4 channels, which can be used as single-ended or 2 differential channels.
- What is the maximum conversion rate of the ADS7841EB/2K5? The maximum conversion rate is up to 200kHz.
- What is the typical power dissipation of the ADS7841EB/2K5 at 200kHz and +5V supply? The typical power dissipation is 2mW.
- What is the operating temperature range of the ADS7841EB/2K5? The operating temperature range is –40°C to +125°C.
- What types of packages are available for the ADS7841EB/2K5? The device is available in DIP-16 and SSOP-16 packages.
- How does the shutdown mode affect power consumption? The shutdown mode reduces power dissipation to under 15µW.
- What is the significance of the synchronous serial interface? The synchronous serial interface provides low-cost isolation for remote data acquisition.
- Can the ADS7841EB/2K5 be used in battery-powered systems? Yes, it is ideal for battery-powered systems due to its low power consumption.
- What are some common applications of the ADS7841EB/2K5? Common applications include data acquisition, test and measurement, industrial process control, and personal digital assistants.
