Overview
The ADS1259BIPW is a high-linearity, low-drift, 24-bit analog-to-digital converter (ADC) designed by Texas Instruments. It is tailored for demanding applications such as industrial process control, precision instrumentation, and test and measurement. The ADC features a fourth-order, inherently stable, delta-sigma (ΔΣ) modulator, which ensures outstanding noise and linearity performance. When combined with a signal amplifier like the PGA280, it forms a high-resolution, high-accuracy measurement system capable of digitizing a wide range of signals.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 24 bits | |
| Output Data Rates | 10 to 14 kSPS | |
| Integral Nonlinearity (INL) | 0.4 ppm | |
| Reference Drift | 2 ppm/°C | |
| Gain Drift | 0.5 ppm/°C | |
| Offset Drift | 0.05 µV/°C | |
| Noise at 60 SPS | 0.7 µV RMS | |
| Analog Supply | +5V or ±2.5V | |
| Digital Supply | +2.7V to +5V | |
| Power Consumption | 13 mW (active), < 25 µW (power-down) | |
| Operating Temperature Range | -40°C to +105°C | |
| Package | TSSOP-20 |
Key Features
- 24 bits, no missing codes
- Output data rates from 10 to 14 kSPS
- High performance: INL of 0.4 ppm, reference drift of 2 ppm/°C, gain drift of 0.5 ppm/°C, and offset drift of 0.05 µV/°C
- Simultaneous 50/60Hz rejection at 10 SPS
- Single-cycle settling
- Internal oscillator with options for external crystal or clock
- Out-of-range detection
- Readback data integrity by checksum and redundant data read capability
- SPI-compatible interface up to 4 MHz
- Integrated low-noise, low-drift 2.5V reference
Applications
- Industrial Process Control
- Scientific Instrumentation
- Test and Measurement
Q & A
- What is the resolution of the ADS1259BIPW ADC?
The ADS1259BIPW has a resolution of 24 bits.
- What are the output data rates of the ADS1259BIPW?
The output data rates range from 10 to 14 kSPS.
- What is the integral nonlinearity (INL) of the ADS1259BIPW?
The INL is 0.4 ppm.
- How does the ADS1259BIPW handle power consumption?
The ADC consumes 13 mW during active operation and less than 25 µW in power-down mode.
- What is the operating temperature range of the ADS1259BIPW?
The operating temperature range is from -40°C to +105°C.
- What package type is the ADS1259BIPW available in?
The ADS1259BIPW is available in a TSSOP-20 package.
- Does the ADS1259BIPW have an integrated reference?
Yes, it has an integrated low-noise, low-drift 2.5V reference.
- How does the ADS1259BIPW ensure data integrity?
Data integrity is ensured through checksum and redundant data read capability.
- What interface does the ADS1259BIPW use for data and control communication?
The ADC uses a 4 MHz SPI-compatible interface.
- Can the ADS1259BIPW detect out-of-range inputs?
Yes, it has an out-of-range detection feature.
