ADS1256IDBR
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 2 (1 Year) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 28-SSOP (0.209", 5.30mm Width) |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C |
| Input Type | Differential, Single Ended |
| Configuration | MUX-PGA-ADC |
| Supplier Device Package | 28-SSOP |
| Number of Inputs | 4, 8 |
| Number of Bits | 24 |
| Number of A/D Converters | 1 |
| Architecture | Sigma-Delta |
| Reference Type | External |
| Data Interface | SPI |
| Sampling Rate (Per Second) | 30k |
| Voltage - Supply, Analog | 5V |
| Voltage - Supply, Digital | 1.8V ~ 3.6V |
| Ratio - S/H:ADC | - |
| Features | PGA |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | ADS1256 |
| REACH Status | REACH Unaffected |
| Standard Package | 1,000 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
ADS1256IDBR 24-bit analog-to-digital converter 4, 8 Input 1 Sigma-Delta
The ADS1256IDBR from Texas Instruments is a high-precision, 24-bit analog-to-digital converter (ADC) designed for demanding measurement applications requiring exceptional resolution and accuracy. This advanced delta-sigma ADC features an integrated programmable gain amplifier (PGA) with gains from 1 to 64, delivering outstanding performance with 23 bits of effective resolution and a maximum data rate of 30 kSPS.
This ADC operates from a single 5V analog supply and 3.3V digital supply, achieving remarkable noise performance of 2.5 μV RMS at 30 kSPS with a gain of 64, making it ideal for industrial process control, scientific instrumentation, and medical equipment where measurement precision is critical. The ADS1256IDBR incorporates an input multiplexer supporting 4 differential or 8 single-ended inputs, on-board calibration functions, and a flexible serial interface, providing a complete data acquisition solution with minimal external components required.
ADS1256IDBR Applications
The ADS1256IDBR is extensively used in precision weighing scales and strain gauge measurement systems where its high resolution and low-noise performance enable accurate weight measurement down to microgram levels. Industrial process control applications include pressure transducers, temperature sensors, and flow meters requiring 24-bit resolution for precise monitoring and control. Medical equipment utilizes the ADC for patient monitoring devices, diagnostic instruments, and laboratory analyzers where signal integrity and measurement accuracy are paramount. Test and measurement instruments such as digital multimeters, data loggers, and spectrum analyzers benefit from the device's high dynamic range and flexible input configuration. Additional applications include seismic monitoring, chromatography equipment, and energy metering systems that demand the highest levels of measurement precision and stability.
Alternative Delta-Sigma ADC Recommendations
● AD7799BRUZ (Analog Devices): A 24-bit sigma-delta ADC with 16.6 Hz output rate and integrated PGA for low-frequency measurement applications.
● LTC2440CUHF (Analog Devices): A 24-bit high-speed delta-sigma ADC with 7 Hz to 880 Hz output rates and superior noise performance.
● MAX11270 (Maxim Integrated): A 24-bit sigma-delta ADC with 120 dB dynamic range and ultra-low power consumption for portable applications.
● MCP3551-50E/MS (Microchip): A 22-bit delta-sigma ADC with 5 Hz output rate and simple 3-wire interface for cost-sensitive applications.
