Overview
The ADS1241E/1K, 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 functions within a supply range of 2.7V to 5.25V, making it versatile for various industrial and portable instrumentation needs. The ADS1241E/1K features advanced capabilities such as simultaneous 50Hz and 60Hz rejection, high input impedance, and programmable gain amplifier (PGA) with gains from 1 to 128. This converter is ideal for applications requiring accurate and reliable analog-to-digital conversion.
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 | |
| Operating Temperature Range | -40°C to 85°C | °C |
| Package Type | SSOP-28 | |
| Input Channels | Up to 8 | |
| Data I/O | Up to 8 bits |
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 interface
- High input impedance for direct connection to transducers or low-level voltage signals
- 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/1K?
The ADS1241E/1K has a 24-bit resolution with no missing codes. - What is the operating supply voltage range of the ADS1241E/1K?
The device operates within a supply range of 2.7V to 5.25V. - What are the gains available in the Programmable Gain Amplifier (PGA)?
The PGA provides selectable gains from 1 to 128. - Does the ADS1241E/1K support simultaneous 50Hz and 60Hz rejection?
Yes, it provides simultaneous 50Hz and 60Hz rejection with a minimum of –90dB. - What is the power consumption of the ADS1241E/1K?
The power consumption is 600µW. - How many input channels and data I/O bits does the ADS1241E/1K support?
It supports up to 8 input channels and up to 8 bits of data I/O. - What is the operating temperature range of the ADS1241E/1K?
The operating temperature range is –40°C to 85°C. - Is the ADS1241E/1K SPI compatible?
Yes, it has an SPI compatible interface. - What is the purpose of the burnout current sources in the ADS1241E/1K?
The burnout current sources allow for the detection of an open or shorted sensor. - What type of package does the ADS1241E/1K come in?
The device is packaged in an SSOP-28 package.
