Overview
The ADS1217IPFBT, manufactured by Texas Instruments, is a precision, wide dynamic range, delta-sigma Analog-to-Digital (A/D) converter. It features a 24-bit resolution and operates from a power supply range of 2.7V to 5.25V. This converter is designed for high-resolution measurement applications and is particularly suited for use in smart transmitters, industrial process control, weigh scales, chromatography, and portable instrumentation.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 24 bits | - |
| Effective Resolution (PGA = 1) | 22 bits | - |
| Effective Resolution (PGA = 128) | 19 bits | - |
| Full-Scale Input Voltage | ±2VREF/PGA | V |
| Programmable Gain Amplifier (PGA) | 1 to 128 | - |
| Operating Temperature Range | -40 to 85 | °C |
| Power Supply Range | 2.7V to 5.25V | V |
| Power Consumption (VDD = 3V) | < 1mW | mW |
| Package Type | 48-TQFP | - |
| Data Output Rate | Up to 1kHz | Hz |
| On-Chip Reference Voltage | 1.25V/2.5V | V |
Key Features
- 24-bit resolution with no missing codes
- Integral Non-Linearity (INL): 0.0012% of Full-Scale Range (FSR) max
- Programmable Gain Amplifier (PGA) with gains from 1 to 128
- Single cycle settling mode
- Programmable data output rates up to 1kHz
- On-chip 1.25V/2.5V reference voltage
- On-chip calibration
- SPI compatible serial interface
- Eight input channels multiplexed with internal buffering for high input impedance
- Burnout current sources for sensor detection
- 8-bit Digital-to-Analog Converter (DAC) for offset correction
Applications
- Industrial process control
- Liquid/gas chromatography
- Blood analysis
- Smart transmitters
- Portable instrumentation
- Weigh scales
- Pressure transducers
Q & A
- What is the resolution of the ADS1217IPFBT?
The ADS1217IPFBT has a 24-bit resolution.
- What is the operating temperature range of the ADS1217IPFBT?
The operating temperature range is -40°C to 85°C.
- What are the power supply requirements for the ADS1217IPFBT?
The power supply range is from 2.7V to 5.25V.
- What is the maximum data output rate of the ADS1217IPFBT?
The maximum data output rate is up to 1kHz.
- Does the ADS1217IPFBT have on-chip calibration?
- How many input channels does the ADS1217IPFBT have?
The ADS1217IPFBT has eight multiplexed input channels.
- What is the purpose of the Programmable Gain Amplifier (PGA) in the ADS1217IPFBT?
The PGA provides selectable gains from 1 to 128, allowing for adjustable sensitivity in measurements.
- Is the ADS1217IPFBT SPI compatible?
- What is the typical power consumption of the ADS1217IPFBT at VDD = 3V?
The typical power consumption is less than 1mW at VDD = 3V.
- What package type is the ADS1217IPFBT available in?
The ADS1217IPFBT is available in a 48-TQFP package.
