Overview
The ADS1240E/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 supports a supply voltage range of 2.7V to 5.25V and is suitable for various industrial and scientific uses.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 24 bits | |
| Integral Nonlinearity (INL) | ±0.0015% of FS | |
| Effective Resolution | 21 bits (PGA = 1), 19 bits (PGA = 128) | |
| 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 |
| Number of Input Channels | Up to 8 | |
| Number of Data I/O | Up to 8 | |
| Package Type | SSOP (DB) 24 pins |
Key Features
- 24-bit resolution with no missing codes
- Simultaneous 50Hz and 60Hz rejection (minimum -90dB)
- 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
- Weight scales
- Liquid/gas chromatography
- Blood analysis
- Smart transmitters
- Portable instrumentation
Q & A
- What is the resolution of the ADS1240E/1KG4?
The ADS1240E/1KG4 has a 24-bit resolution with no missing codes.
- What is the operating temperature range of the ADS1240E/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 ADS1240E/1KG4?
The power consumption is 600µW.
- Does the ADS1240E/1KG4 support simultaneous 50Hz and 60Hz rejection?
- What is the supply voltage range for the ADS1240E/1KG4?
The supply voltage range is 2.7V to 5.25V.
- How many input channels and data I/O does the ADS1240E/1KG4 support?
It supports up to 8 input channels and up to 8 data I/O.
- What type of serial interface does the ADS1240E/1KG4 use?
The serial interface is SPI compatible.
- Does the ADS1240E/1KG4 have on-chip calibration?
- What are some common applications of the ADS1240E/1KG4?
Common applications include industrial process control, weight scales, liquid/gas chromatography, blood analysis, smart transmitters, and portable instrumentation.
