Overview
The ADS1241E/1KG4, produced by Texas Instruments, is a precision, wide dynamic range, delta-sigma analog-to-digital (A/D) converter. This device operates with a 24-bit resolution and is designed for high-resolution measurement applications. It features a programmable gain amplifier (PGA) with gains ranging from 1 to 128, and it operates from a supply voltage range of 2.7V to 5.25V. The ADS1241E/1KG4 is particularly suited for applications in smart transmitters, industrial process control, weight scales, chromatography, and portable instrumentation.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 24 bits | |
| Effective Resolution | 21 bits (PGA = 1), 19 bits (PGA = 128) | |
| Integral Nonlinearity (INL) | ±0.0015% of FS | |
| Programmable Gain Amplifier (PGA) Gains | 1 to 128 | |
| Supply Voltage Range | 2.7V to 5.25V | V |
| Power Consumption | 600µW | W |
| Operating Temperature Range | -40°C to 85°C | °C |
| Package Type | 28-SSOP | |
| Number of Input Channels | Up to 8 | |
| Number of Data I/O | Up to 8 |
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 of 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
- Weight scales
- Liquid/gas chromatography
- Blood analysis
- Smart transmitters
- Portable instrumentation
Q & A
- What is the resolution of the ADS1241E/1KG4?
The ADS1241E/1KG4 has a 24-bit resolution with no missing codes.
- What is the operating temperature range of the ADS1241E/1KG4?
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 is the power consumption of the ADS1241E/1KG4?
The power consumption is 600µW.
- Does the ADS1241E/1KG4 support simultaneous 50Hz and 60Hz rejection?
Yes, it provides simultaneous 50Hz and 60Hz rejection with a minimum of –90dB.
- What is the supply voltage range for the ADS1241E/1KG4?
The supply voltage range is 2.7V to 5.25V.
- How many input channels and data I/O are available on the ADS1241E/1KG4?
Up to 8 input channels and up to 8 data I/O are available.
- Is the ADS1241E/1KG4 SPI compatible?
Yes, it has an SPI compatible serial interface.
- What type of package does the ADS1241E/1KG4 come in?
The ADS1241E/1KG4 comes in a 28-SSOP package.
- What are some common applications for the ADS1241E/1KG4?
Common applications include industrial process control, weight scales, chromatography, blood analysis, smart transmitters, and portable instrumentation.
