Overview
The ADS1100A2IDBVR, produced by Texas Instruments, is a precision, 16-bit analog-to-digital converter (ADC) designed for high-resolution measurements in space-constrained and power-sensitive applications. This device features a continuously self-calibrating delta-sigma ADC core with differential inputs and an onboard Programmable Gain Amplifier (PGA) that offers gains up to 8. The ADS1100 operates from a single power supply ranging from 2.7V to 5.5V and communicates through an I2C-compatible serial interface. It is packaged in a small SOT23-6 package, making it ideal for applications where size and power consumption are critical.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Resolution | 12 | 16 | 16 | Bits |
| Full-Scale Input Voltage | ±VDD/PGA | V | ||
| Analog Input Voltage | GND - 0.2 | VDD + 0.2 | V | |
| Differential Input Impedance | 2.4/PGA | MΩ | ||
| Common-Mode Input Impedance | 8 | MΩ | ||
| Power-Supply Voltage | 2.7 | 5.5 | V | |
| Supply Current (Power Down) | 0.05 | 2 | µA | |
| Supply Current (Active Mode) | 90 | 150 | µA | |
| Data Rates | 8 | 128 | SPS | |
| PGA Gains | 1 | 8 |
Key Features
- Continuously self-calibrating delta-sigma ADC core for high accuracy.
- Differential inputs with programmable gain amplifier (PGA) offering gains up to 8.
- Single power supply operation from 2.7V to 5.5V.
- I2C-compatible serial interface for communication.
- Low power consumption with automatic power-down after single conversion in single-conversion mode.
- Small SOT23-6 package suitable for space-constrained applications.
- Onboard clock generator eliminating the need for an external clock.
- Support for multiple data rates: 8, 16, 32, and 128 samples per second.
Applications
The ADS1100A2IDBVR is designed for applications that require high-resolution measurement with minimal space and power consumption. Typical applications include:
- Medical devices such as portable health monitors and diagnostic equipment.
- Industrial automation and control systems.
- Environmental monitoring systems.
- Automotive sensors and systems.
- Consumer electronics requiring precise analog-to-digital conversion.
Q & A
- What is the resolution of the ADS1100A2IDBVR?
The ADS1100A2IDBVR has a resolution of up to 16 bits. - What are the available PGA gains for the ADS1100A2IDBVR?
The PGA gains available are 1, 2, 4, and 8. - What is the power supply range for the ADS1100A2IDBVR?
The device operates from a single power supply ranging from 2.7V to 5.5V. - How does the ADS1100A2IDBVR communicate?
The device communicates through an I2C-compatible serial interface. - What are the data rates supported by the ADS1100A2IDBVR?
The device supports data rates of 8, 16, 32, and 128 samples per second. - Does the ADS1100A2IDBVR require an external clock?
No, the ADS1100A2IDBVR features an onboard clock generator, eliminating the need for an external clock. - How does the ADS1100A2IDBVR manage power consumption?
The device automatically powers down after a single conversion in single-conversion mode to reduce power consumption. - What is the package type of the ADS1100A2IDBVR?
The device is packaged in a small SOT23-6 package. - Is the ADS1100A2IDBVR self-calibrating?
Yes, the ADS1100A2IDBVR features continuous self-calibration to maintain high accuracy. - What are some typical applications for the ADS1100A2IDBVR?
Typical applications include medical devices, industrial automation, environmental monitoring, automotive sensors, and consumer electronics requiring precise analog-to-digital conversion.
