Overview
The ADS1241E from Texas Instruments is a precision, wide dynamic range, delta-sigma analog-to-digital (A/D) converter. It operates with a 24-bit resolution and is powered by a supply range of 2.7V to 5.25V. This converter is designed for high-resolution measurement applications and offers features such as simultaneous 50Hz and 60Hz rejection, high input impedance, and on-chip calibration. The ADS1241E is particularly suited for applications requiring precise analog-to-digital conversion with a high degree of accuracy and reliability.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 24 bits | |
| Sampling Rate | 30 SPS | |
| Number of Input Channels | Up to 8 | |
| Programmable Gain Amplifier (PGA) Gains | 1 to 128 | |
| Effective Resolution (PGA = 1) | 21 bits | |
| Effective Resolution (PGA = 128) | 19 bits | |
| Integral Nonlinearity (INL) | 0.0015% | |
| Supply Voltage Range | 2.7V to 5.25V | V |
| Power Consumption | 600 µW | W |
| Operating Temperature Range | -40°C to 85°C | °C |
| Package Type | SSOP (DB) with 28 pins |
Key Features
- 24 bits 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
- 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
- Weight scales
- Liquid/gas chromatography
- Blood analysis
- Smart transmitters
- Portable instrumentation
Q & A
- What is the resolution of the ADS1241E?
The ADS1241E has a 24-bit resolution.
- What is the sampling rate of the ADS1241E?
The sampling rate is 30 samples per second (SPS).
- What are the PGA gains available on the ADS1241E?
The PGA gains range from 1 to 128.
- What is the effective resolution at PGA gain of 128?
The effective resolution at a PGA gain of 128 is 19 bits.
- What is the integral nonlinearity (INL) of the ADS1241E?
The INL is 0.0015%.
- What is the supply voltage range for the ADS1241E?
The supply voltage range is 2.7V to 5.25V.
- How much power does the ADS1241E consume?
The power consumption is 600 µW.
- What is the operating temperature range of the ADS1241E?
The operating temperature range is -40°C to 85°C.
- What type of package does the ADS1241E come in?
The ADS1241E comes in an SSOP (DB) package with 28 pins.
- What are some common applications of the ADS1241E?
Common applications include industrial process control, weight scales, liquid/gas chromatography, blood analysis, smart transmitters, and portable instrumentation.
