Overview
The ADS7822EB/250 is a 12-bit sampling analog-to-digital (A/D) converter manufactured by Texas Instruments. This device is designed to operate with very low power consumption, making it ideal for battery-operated systems and other power-sensitive applications. The ADS7822EB/250 features a high sampling rate of 200 kHz and is available in several package options, including 8-TSSOP, 8-MSOP, and mini-DIP-8. It supports a wide supply voltage range from 2.7V to 5.25V, ensuring versatility in various system designs.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 12 |
| Sampling Rate (Per Second) | 200 kHz |
| Number of Inputs | 1 |
| Input Type | Pseudo-Differential |
| Data Interface | Serial (SPI) |
| Configuration | S/H-ADC |
| Architecture | SAR (Successive Approximation Register) |
| Reference Type | External |
| Voltage - Supply, Analog | 2.7 V ~ 3.6 V, 5 V |
| Voltage - Supply, Digital | 2.7 V ~ 3.6 V, 5 V |
| Operating Temperature | -40°C ~ 85°C |
| Package / Case | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) |
Key Features
- Low power consumption: 1.6 mW at 200 kHz, 0.54 mW at 75 kHz, and 0.06 mW at 7.5 kHz.
- Power-down mode: less than 3 µA.
- Pseudo-differential input.
- Synchronous serial interface (SPI).
- Reference voltage can be set to any level within the range of 50 mV to VCC.
- Available in mini-DIP-8, SO-8, and MSOP-8 packages.
Applications
- Battery-operated systems due to its ultra-low power consumption.
- Remote data acquisition modules.
- Isolated data acquisition systems.
- Simultaneous sampling, multichannel systems.
Q & A
- What is the resolution of the ADS7822EB/250?
The ADS7822EB/250 is a 12-bit analog-to-digital converter.
- What is the maximum sampling rate of the ADS7822EB/250?
The maximum sampling rate is 200 kHz.
- What types of packages are available for the ADS7822EB/250?
The device is available in 8-TSSOP, 8-MSOP, and mini-DIP-8 packages.
- What is the operating temperature range of the ADS7822EB/250?
The operating temperature range is -40°C to 85°C.
- What is the power consumption of the ADS7822EB/250 at 200 kHz?
The power consumption is 1.6 mW at 200 kHz.
- Does the ADS7822EB/250 support pseudo-differential inputs?
Yes, it supports pseudo-differential inputs.
- What type of data interface does the ADS7822EB/250 use?
The device uses a synchronous serial interface (SPI).
- What is the reference voltage range for the ADS7822EB/250?
The reference voltage can be set to any level within the range of 50 mV to VCC.
- Is the ADS7822EB/250 suitable for battery-operated systems?
Yes, it is highly suitable due to its ultra-low power consumption.
- What are some common applications of the ADS7822EB/250?
Common applications include battery-operated systems, remote data acquisition, isolated data acquisition, and simultaneous sampling in multichannel systems.
