Overview
The ADS8331IRGER is a low-power, 16-bit, 500-k samples-per-second (SPS) analog-to-digital converter (ADC) produced by Texas Instruments. This device features a unipolar, 4-to-1 multiplexer (mux) input and includes a 16-bit capacitor-based successive approximation register (SAR) ADC with inherent sample and hold. It operates within a flexible supply range of 2.7V to 5.5V, making it suitable for a variety of applications requiring high precision and low power consumption.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 16 Bits | |
| Sampling Rate | Up to 500 kSPS | |
| Analog Supply Voltage | 2.7 V to 5.5 V | V |
| Digital Interface Supply Voltage | 1.65 V to VA | V |
| Power Consumption (250 kSPS, Auto-NAP Mode) | 8.7 mW (VA = 2.7 V, VBD = 1.65 V) | mW |
| Power Consumption (500 kSPS) | 14.2 mW (VA = 2.7 V, VBD = 1.65 V) | mW |
| Signal-to-Noise Ratio (SNR) | 91.5 dB | dB |
| Spurious Free Dynamic Range (SFDR) | 101 dB | dB |
| Total Harmonic Distortion (THD) | –100 dB | dB |
| Integral Linearity (INL) | ±2 LSB (typical), ±3 LSB (maximum) | LSB |
| Differential Linearity (DNL) | ±0.6 LSB (typical), ±1.5 LSB (maximum) | LSB |
| Operating Temperature Range | –40°C to 85°C | °C |
| Package Types | 24-Pin 4-mm × 4-mm VQFN, 24-Pin TSSOP |
Key Features
- On-chip 4-to-1 multiplexer (mux) input with breakout
- Auto/manual channel select and trigger
- On-chip conversion clock (CCLK)
- Software/hardware reset
- Programmable status/polarity EOC/INT
- Daisy-chain mode
- Global CONVST (independent of CS)
- Deep, Nap, and Auto-NAP powerdown modes
- SPI™/DSP compatible serial interface
- Separate I/O supply: 1.65 V to VA
- SCLK up to 40 MHz (VA = VBD = 5 V)
Applications
- Communications
- Transducer Interfaces
- Medical Instruments
- Magnetometers
- Industrial Process Controls
- Data Acquisition Systems
- Automatic Test Equipment
Q & A
- What is the resolution of the ADS8331IRGER ADC?
The ADS8331IRGER has a resolution of 16 bits.
- What is the maximum sampling rate of the ADS8331IRGER?
The maximum sampling rate is up to 500 kSPS.
- What is the operating voltage range for the analog supply of the ADS8331IRGER?
The analog supply voltage range is 2.7 V to 5.5 V.
- How much power does the ADS8331IRGER consume in Auto-NAP mode at 250 kSPS?
The power consumption is 8.7 mW (VA = 2.7 V, VBD = 1.65 V).
- What are the key features of the analog input arrangement of the ADS8331IRGER?
The device features an on-chip 4-to-1 multiplexer (mux) input with breakout, auto/manual channel select and trigger.
- Does the ADS8331IRGER support daisy-chain operation?
- What are the available package types for the ADS8331IRGER?
The device is available in 24-Pin 4-mm × 4-mm VQFN and 24-Pin TSSOP packages.
- What is the operating temperature range of the ADS8331IRGER?
The operating temperature range is –40°C to 85°C.
- What is the maximum SCLK frequency for the serial interface of the ADS8331IRGER?
The maximum SCLK frequency is up to 40 MHz (VA = VBD = 5 V).
- What are some typical applications of the ADS8331IRGER?
Typical applications include communications, transducer interfaces, medical instruments, magnetometers, industrial process controls, data acquisition systems, and automatic test equipment.
