Overview
The ADS1100A5IDBVT, produced by Texas Instruments, is a precision, self-calibrating 16-bit Analog-to-Digital Converter (ADC) designed for high-resolution measurements. This device features differential inputs and operates from a single power supply ranging from 2.7V to 5.5V. It uses an I2C-compatible serial interface and includes an onboard Programmable Gain Amplifier (PGA) with gains up to 8, allowing for the measurement of smaller signals with high resolution. The ADS1100A5IDBVT is packaged in a small SOT23-6 package, making it ideal for applications where space and power consumption are critical.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Power-Supply Voltage (VDD) | 2.7 | 5.5 | V | |
| Supply Current (Power Down) | 0.05 | 2 | µA | |
| Supply Current (Active Mode) | 90 | 150 | µA | |
| Power Dissipation (VDD = 5.0V) | 450 | 750 | µW | |
| Power Dissipation (VDD = 3.0V) | 210 | µW | ||
| Resolution | 12 | 14 | 16 | Bits |
| Data Rates | 8 | 16 | 32, 128 | Samples per Second |
| Analog Input Voltage (VIN+, VIN– to GND) | GND – 0.2 | VDD + 0.2 | V | |
| Differential Input Impedance | 2.4/PGA | MΩ | ||
| Common-Mode Input Impedance | 8 | MΩ |
Key Features
- Continuously self-calibrating delta-sigma ADC with up to 16 bits of resolution.
- Differential inputs with programmable gain amplifier (PGA) offering gains up to 8.
- I2C-compatible serial interface.
- Single power supply operation from 2.7V to 5.5V.
- Data rates of 8, 16, 32, or 128 samples per second.
- Automatic power-down after conversion in single-conversion mode to reduce current consumption.
- Onboard clock generator; no external clock required.
- Available in eight different versions, each with a unique I2C address.
Applications
The ADS1100A5IDBVT is suitable for a variety of applications requiring high-resolution analog-to-digital conversion, such as:
- Industrial automation and control systems.
- Medical devices, including patient monitoring and diagnostic equipment.
- Aerospace and defense systems where precision and reliability are crucial.
- Automotive systems, particularly in sensor and control applications.
- Environmental monitoring and data acquisition systems.
Q & A
- What is the resolution of the ADS1100A5IDBVT?
The ADS1100A5IDBVT has a resolution of up to 16 bits, depending on the data rate setting. - What are the available data rates for the ADS1100A5IDBVT?
The available data rates are 8, 16, 32, and 128 samples per second. - What is the power supply range for the ADS1100A5IDBVT?
The device operates from a single power supply ranging from 2.7V to 5.5V. - Does the ADS1100A5IDBVT require an external clock?
No, the ADS1100A5IDBVT features an onboard clock generator and does not require an external clock. - How does the PGA function in the ADS1100A5IDBVT?
The Programmable Gain Amplifier (PGA) offers gains up to 8, allowing for the measurement of smaller signals with high resolution. - What is the typical input impedance of the ADS1100A5IDBVT?
The differential input impedance is typically 2.4 MΩ/PGA, and the common-mode input impedance is typically 8 MΩ. - How does the self-calibration system work in the ADS1100A5IDBVT?
The self-calibration system operates continuously and compensates for gain and offset errors without any user intervention. - What is the package type of the ADS1100A5IDBVT?
The device is packaged in a small SOT23-6 package. - Is the ADS1100A5IDBVT RoHS compliant?
Yes, the ADS1100A5IDBVT is RoHS compliant. - How many different versions of the ADS1100 are available, and what is the difference between them?
There are eight different versions, each with a unique I2C address; otherwise, they operate identically.
