Overview
The ADS1100A1IDBVR, produced by Texas Instruments, is a precision, continuously self-calibrating 16-bit Analog-to-Digital (A/D) converter. It features differential inputs and operates in a small SOT23-6 package. The device is designed for high-resolution measurements, particularly in applications where space and power consumption are critical. The ADS1100 uses an I2C-compatible serial interface and operates from a single power supply ranging from 2.7V to 5.5V. It includes an onboard Programmable Gain Amplifier (PGA) with gains of up to 8, allowing for the measurement of smaller signals with high resolution.
Key Specifications
| Parameter | Min | 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 | 16 | Bits | |
| Data Rate | 8 | 128 | SPS | |
| Differential Input Impedance | 2.4/PGA | MΩ | ||
| Common-Mode Input Impedance | 8 | MΩ | ||
| PGA Gain Settings | 1 | 8 |
Key Features
- Self-Calibrating: Continuously self-calibrating to compensate for gain and offset errors without user intervention.
- Differential Inputs: Allows for differential analog input measurements.
- Programmable Gain Amplifier (PGA): Offers gains of up to 8, enabling the measurement of smaller signals with high resolution.
- I2C Interface: Communicates through an I2C-compatible serial interface, supporting multiple devices and masters on a single bus.
- Low Power Consumption: Automatically powers down after a conversion in single-conversion mode, reducing current consumption during idle periods.
- Onboard Clock Generator: Drives the operation of the modulator and digital filter, eliminating the need for an external clock.
- Small Package: Available in a compact SOT23-6 package, ideal for space-constrained applications.
Applications
- Industrial Automation: Suitable for high-resolution measurement in industrial control systems.
- Medical Devices: Used in medical equipment requiring precise analog-to-digital conversions.
- Automotive Systems: Applicable in automotive sensors and monitoring systems.
- Consumer Electronics: Employed in various consumer electronic devices needing accurate analog-to-digital conversion.
- Environmental Monitoring: Ideal for environmental monitoring systems that require high-resolution data acquisition.
Q & A
- What is the resolution of the ADS1100A1IDBVR?
The ADS1100A1IDBVR has a resolution of up to 16 bits, with options for 12, 14, and 15 bits depending on the data rate setting.
- What are the power supply requirements for the ADS1100A1IDBVR?
The device operates from a single power supply ranging from 2.7V to 5.5V.
- What are the gain settings available for the PGA in the ADS1100A1IDBVR?
The PGA offers gain settings of 1, 2, 4, and 8.
- How does the ADS1100A1IDBVR communicate with other devices?
The ADS1100A1IDBVR communicates through an I2C-compatible serial interface.
- What is the typical power consumption of the ADS1100A1IDBVR in active mode?
The typical power consumption in active mode is between 90µA and 150µA.
- Does the ADS1100A1IDBVR require an external clock generator?
No, the ADS1100A1IDBVR features an onboard clock generator that drives the operation of the modulator and digital filter.
- What is the input impedance of the ADS1100A1IDBVR?
The differential input impedance is typically 2.4MΩ/PGA, and the common-mode input impedance is typically 8MΩ.
- How does the self-calibration system work in the ADS1100A1IDBVR?
The self-calibration system operates continuously and compensates for gain and offset errors without any user intervention.
- What are the data rate options for the ADS1100A1IDBVR?
The data rate options are 8, 16, 32, and 128 samples per second.
- What is the package type of the ADS1100A1IDBVR?
The device is available in a SOT23-6 package.
