Overview
The ADS1253EG4 is a precision, wide dynamic range, delta-sigma Analog-to-Digital (A/D) converter produced by Texas Instruments. It operates with a 24-bit resolution from a single +5V supply, utilizing a delta-sigma architecture to achieve high-resolution digital results. The converter is designed for high-resolution measurement applications and features an effective resolution of 19 bits up to a 20kHz data rate, with an impressive 1.8ppm of rms noise.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 24 bits |
| Effective Resolution | 19 bits up to 20kHz |
| Noise | 1.8ppm rms |
| Input Type | Four differential inputs |
| Integral Non-Linearity (INL) | 15ppm (max) |
| External Reference | 0.5V to 5V |
| Power Consumption | 8mW at 20kHz, 5mW at 10kHz |
| Operating Temperature Range | -40°C to 85°C |
| Package Type | 16-SSOP (DBQ) |
| Supply Voltage | +5V |
Key Features
- No missing codes at 24 bits
- Low noise: 1.8ppm
- Four differential inputs
- Integral Non-Linearity (INL): 15ppm (max)
- External reference (0.5V to 5V)
- Power-down mode and sync mode
- Low power consumption: 8mW at 20kHz and 5mW at 10kHz
- Flexible two-wire synchronous serial interface
Applications
- Cardiac diagnostics
- Smart transmitters
- Industrial process control
- Weight scales
- Chromatography (liquid/gas)
- Portable instrumentation
- Direct thermocouple interfaces
- Blood analysis
- Infrared pyrometers
- Precision process control
Q & A
- What is the resolution of the ADS1253EG4?
The ADS1253EG4 has a 24-bit resolution with no missing codes. - What is the effective resolution at 20kHz data rate?
The effective resolution is 19 bits up to a 20kHz data rate. - How much noise does the ADS1253EG4 have?
The noise level is 1.8ppm rms. - What type of inputs does the ADS1253EG4 have?
The ADS1253EG4 has four differential inputs. - What is the power consumption at 20kHz and 10kHz?
The power consumption is 8mW at 20kHz and 5mW at 10kHz. - What is the operating temperature range of the ADS1253EG4?
The operating temperature range is -40°C to 85°C. - What package type is the ADS1253EG4 available in?
The ADS1253EG4 is available in a 16-SSOP (DBQ) package. - What are some of the key applications of the ADS1253EG4?
Key applications include cardiac diagnostics, smart transmitters, industrial process control, weight scales, and chromatography. - Does the ADS1253EG4 support power-down and sync modes?
Yes, the ADS1253EG4 supports both power-down and sync modes. - What is the supply voltage for the ADS1253EG4?
The supply voltage is +5V.
