Overview
The ADS1243IPWT is a precision, wide dynamic range, delta-sigma analog-to-digital (A/D) converter produced by Texas Instruments. This 24-bit resolution converter operates from a supply range of 2.7V to 5.25V, making it suitable for a variety of high-resolution measurement applications. The ADS1243IPWT is designed for use in smart transmitters, industrial process control, weight scales, chromatography, and portable instrumentation.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 24 Bits |
| Input Channels | Up to 8 |
| Programmable Gain Amplifier (PGA) | Gains from 1 to 128 |
| Effective Resolution | 21 bits (PGA = 1), 19 bits (PGA = 128) |
| Operating Temperature Range | -40°C to 85°C |
| Supply Voltage Range | 2.7V to 5.25V |
| Power Consumption | 0.6 mW (typical) |
| Interface | SPI compatible |
| Package Type | TSSOP-20 |
| Input Type | Differential, Single-Ended |
| Integrated Features | 50/60 Hz Rejection, GPIO, PGA |
Key Features
- 24-bit resolution with no missing codes
- Simultaneous 50Hz and 60Hz rejection (–90dB minimum)
- 0.0015% Integral Non-Linearity (INL)
- Single-cycle settling
- Programmable data output rates
- External differential reference input (0.1V to 5V)
- On-chip calibration
- SPI compatible serial interface
- Up to eight input channels and eight data I/O
- 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
- Weight scales
Q & A
- What is the resolution of the ADS1243IPWT?
The ADS1243IPWT has a 24-bit resolution.
- What is the operating temperature range of the ADS1243IPWT?
The operating temperature range is -40°C to 85°C.
- What are the gains available on the Programmable Gain Amplifier (PGA)?
The PGA provides gains from 1 to 128.
- What type of interface does the ADS1243IPWT use?
The ADS1243IPWT uses an SPI compatible serial interface.
- How many input channels does the ADS1243IPWT support?
The ADS1243IPWT supports up to eight input channels.
- What is the power consumption of the ADS1243IPWT?
The typical power consumption is 0.6 mW.
- What package type is the ADS1243IPWT available in?
The ADS1243IPWT is available in a TSSOP-20 package.
- Does the ADS1243IPWT have integrated features for noise rejection?
Yes, it has simultaneous 50Hz and 60Hz rejection.
- Can the ADS1243IPWT be used for ratiometric conversion?
Yes, the reference input is differential and can be used for ratiometric conversion.
- What is the purpose of the burnout current sources in the ADS1243IPWT?
The burnout current sources allow for the detection of an open or shorted sensor.
