Overview
The ADS1243IPWR 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 voltage range of 2.7V to 5.25V, making it versatile for various high-resolution measurement applications. The ADS1243IPWR features up to eight multiplexed input channels and up to eight bits of data I/O, which can be used for input or output. It is designed for applications requiring high accuracy and low power consumption, such as industrial process control, liquid/gas chromatography, blood analysis, smart transmitters, portable instrumentation, and weight scales.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 24 bits | |
| Number of Input Channels | Up to 8 | |
| Programmable Gain Amplifier (PGA) Gains | 1 to 128 | |
| Effective Resolution | 21 bits (PGA = 1), 19 bits (PGA = 128) | |
| Supply Voltage Range | 2.7V to 5.25V | V |
| Power Consumption | 0.6 mW (typical) | mW |
| Operating Temperature Range | -40°C to 85°C | °C |
| Package Type | 20-pin TSSOP (PW) | |
| Sampling Rate | Up to 15 sps | sps |
| Differential Nonlinearity | 1 LSB | |
| Integral Nonlinearity (INL) | 0.0015% | % |
| 50Hz and 60Hz Rejection | -90dB minimum | dB |
Key Features
- 24-bit resolution with no missing codes
- Simultaneous 50Hz and 60Hz rejection (-90dB minimum)
- Programmable Gain Amplifier (PGA) with gains from 1 to 128
- Single-cycle settling
- Programmable data output rates
- External differential reference input (0.1V to 5V)
- On-chip calibration
- SPI compatible serial interface
- 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
- Weight scales
Q & A
- What is the resolution of the ADS1243IPWR?
The ADS1243IPWR has a 24-bit resolution.
- What is the supply voltage range for the ADS1243IPWR?
The supply voltage range is from 2.7V to 5.25V.
- How many input channels does the ADS1243IPWR have?
The ADS1243IPWR has up to eight multiplexed input channels.
- What are the gains available for the Programmable Gain Amplifier (PGA)?
The PGA provides gains from 1 to 128.
- What is the typical power consumption of the ADS1243IPWR?
The typical power consumption is 0.6 mW.
- What is the operating temperature range for the ADS1243IPWR?
The operating temperature range is -40°C to 85°C.
- What type of package does the ADS1243IPWR come in?
The ADS1243IPWR comes in a 20-pin TSSOP (PW) package.
- Does the ADS1243IPWR have simultaneous 50Hz and 60Hz rejection?
Yes, it provides simultaneous 50Hz and 60Hz rejection with a minimum of -90dB.
- Is the serial interface of the ADS1243IPWR SPI compatible?
Yes, the serial interface is SPI compatible.
- What is the purpose of the internal buffering in the ADS1243IPWR?
The internal buffering provides a very high input impedance for direct connection to transducers or low-level voltage signals.
