Overview
The ADS1158IRTCT is a high-performance, 16-bit analog-to-digital converter (ADC) produced by Texas Instruments. This device integrates programmable gain amplifiers (PGAs), multiplexers, and a voltage reference, making it suitable for various analog signal processing applications. It offers high-precision conversion capabilities and is designed to meet the requirements of demanding signal processing environments. The ADS1158IRTCT operates in both unipolar (+5V) and bipolar (±2.5V) modes and supports single-ended and differential input configurations.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution (Bits) | 16 |
| Sample Rate (max) (ksps) | 125 |
| Number of Input Channels | 16 |
| Interface Type | SPI |
| Architecture | Delta-Sigma |
| Input Type | Differential, Single-ended |
| Multichannel Configuration | Multiplexed |
| Reference Mode | External |
| Input Voltage Range (max) (V) | 2.85, 5.35 |
| Input Voltage Range (min) (V) | -2.7, 0 |
| Operating Temperature Range (°C) | -40 to 105 |
| Power Consumption (typ) (mW) | 42 |
| Analog Supply (min) (V) | 4.75 |
| Analog Supply Voltage (max) (V) | 5.25 |
| Digital Supply (min) (V) | 2.5 |
| Digital Supply (max) (V) | 3.6 |
| Package/Case | VQFNP-48 |
Key Features
- 16-bit resolution with no missing codes
- Fixed-channel or automatic channel scan capabilities
- Fixed-channel data rate of 125kSPS and auto-scan data rate of 23.7kSPS per channel
- Single-cycle settled data
- Support for 16 single-ended or 8 differential inputs
- Unipolar (+5V) or bipolar (±2.5V) operation
- High DC stability with 1µV/°C offset drift and 2ppm/°C gain drift
- Open-sensor detection and conversion control pin
- Multiplexer output for external signal conditioning
- On-chip temperature, reference, offset, gain, and supply voltage readback
- Low power consumption with standby, sleep, and power-down modes
- Eight general-purpose inputs/outputs (GPIO)
- 32.768kHz crystal oscillator or external clock support
Applications
- Medical devices
- Avionics
- Process control systems
- Machine and system monitoring
- Fast scan multi-channel instrumentation
- Industrial systems
- Test and measurement systems
Q & A
- Q: What is the resolution of the ADS1158IRTCT?
A: The ADS1158IRTCT offers a 16-bit resolution for high-precision analog-to-digital conversion. - Q: Can the ADS1158IRTCT be used in low-power applications?
A: Yes, the ADS1158IRTCT provides low power consumption and can be used in low-power sensor nodes and IoT devices. - Q: What is the maximum sample rate of the ADS1158IRTCT?
A: The maximum sample rate of the ADS1158IRTCT is 125 kSPS. - Q: How many input channels does the ADS1158IRTCT support?
A: The ADS1158IRTCT supports 16 input channels. - Q: What types of input configurations are supported by the ADS1158IRTCT?
A: The ADS1158IRTCT supports both single-ended and differential input configurations. - Q: What is the operating temperature range of the ADS1158IRTCT?
A: The operating temperature range of the ADS1158IRTCT is -40°C to 105°C. - Q: Does the ADS1158IRTCT have built-in sensor bias current sources?
A: Yes, the ADS1158IRTCT has programmable sensor bias current sources to bias sensors or verify sensor integrity. - Q: What interface does the ADS1158IRTCT use for digital communication?
A: The ADS1158IRTCT uses an SPI-compatible interface for digital communication. - Q: Can the ADS1158IRTCT operate with an external clock source?
A: Yes, the ADS1158IRTCT can operate with an external clock source or a 32.768kHz crystal oscillator. - Q: What is the typical power consumption of the ADS1158IRTCT?
A: The typical power consumption of the ADS1158IRTCT is 42 mW.
