Overview
The ADS8863IDGSR, produced by Texas Instruments, is a 16-bit, 680-kSPS (kilosamples per second) analog-to-digital converter (ADC) with a true-differential input and an SPI-compatible serial interface. This device is designed for high-performance applications requiring low power consumption and excellent AC and DC performance. It operates with a wide range of supply voltages and reference inputs, making it versatile for various signal processing needs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Sample Rate | 680 | kSPS |
| Resolution | 16-bit | |
| Input Type | True-Differential, Unipolar | |
| Input Range | –VREF to +VREF | |
| Common-Mode Voltage Range | 0 V to VREF with 90-dB CMRR (min) | |
| Serial Interface | SPI-compatible with Daisy-Chain Option | |
| SNR | 96 dB | |
| THD | –115 dB | |
| INL | ±1.0 LSB (max) | |
| DNL | ±1.0 LSB (max) | |
| Analog Supply Voltage (AVDD) | 2.7 V to 3.6 V | |
| Digital Supply Voltage (DVDD) | 1.65 V to 3.6 V | |
| Reference Voltage (REF) | 2.5 V to 5 V | |
| Operating Temperature | –40°C to +85°C | |
| Power Consumption at 680 kSPS | 4.2 mW | |
| Power Consumption at 100 kSPS | 0.6 mW | |
| Power Consumption at 10 kSPS | 60 µW | |
| Power-Down Current (AVDD) | 50 nA | |
| Full-Scale Step Settling to 16 Bits | 540 ns | |
| Packages | MSOP-10 and SON-10 |
Key Features
- True-Differential Input: Supports unipolar, true-differential analog input signals with a differential input swing of –VREF to +VREF.
- Wide Common-Mode Voltage Range: Allows for a common-mode voltage of any value in the range of 0 V to +VREF with 90-dB CMRR (min).
- SPI-Compatible Serial Interface: Includes daisy-chain option for cascading multiple devices and an optional busy-indicator bit for easy synchronization with the digital host.
- Excellent AC and DC Performance: Features SNR of 96 dB, THD of –115 dB, INL of ±1.0 LSB (max), and DNL of ±1.0 LSB (max).
- Low-Power Operation: Power consumption scales directly with speed, making it excellent for lower-speed applications. Power consumption includes 4.2 mW at 680 kSPS, 0.6 mW at 100 kSPS, and 60 µW at 10 kSPS.
- Wide Operating Range: Supports AVDD from 2.7 V to 3.6 V, DVDD from 1.65 V to 3.6 V, and REF from 2.5 V to 5 V.
- No Latency Output: Ensures real-time data output without latency.
- Compact Packages: Available in MSOP-10 and SON-10 packages.
Applications
- Automatic Test Equipment (ATE): Ideal for high-speed data acquisition and testing.
- Instrumentation and Process Controls: Suitable for precision measurement and control systems.
- Precision Medical Equipment: Used in medical devices requiring high accuracy and low power consumption.
- Low-Power, Battery-Operated Instruments: Perfect for devices that need to conserve power while maintaining high performance.
Q & A
- What is the resolution and sample rate of the ADS8863IDGSR?
The ADS8863IDGSR is a 16-bit ADC with a sample rate of 680 kSPS.
- What type of input does the ADS8863IDGSR support?
The device supports unipolar, true-differential analog input signals.
- What is the common-mode voltage range of the ADS8863IDGSR?
The common-mode voltage range is from 0 V to VREF with 90-dB CMRR (min).
- What kind of serial interface does the ADS8863IDGSR have?
The device has an SPI-compatible serial interface with a daisy-chain option.
- What are the power consumption levels at different sample rates?
The power consumption is 4.2 mW at 680 kSPS, 0.6 mW at 100 kSPS, and 60 µW at 10 kSPS.
- What are the operating temperature and supply voltage ranges for the ADS8863IDGSR?
The operating temperature range is –40°C to +85°C, and the supply voltage ranges are AVDD: 2.7 V to 3.6 V, DVDD: 1.65 V to 3.6 V, and REF: 2.5 V to 5 V.
- What packages is the ADS8863IDGSR available in?
The device is available in MSOP-10 and SON-10 packages.
- Does the ADS8863IDGSR have any latency in its output?
No, the ADS8863IDGSR has no latency output.
- What are some typical applications of the ADS8863IDGSR?
Typical applications include automatic test equipment, instrumentation and process controls, precision medical equipment, and low-power, battery-operated instruments.
- How does the power consumption of the ADS8863IDGSR scale with speed?
The power consumption directly scales with the sample rate, making it efficient for lower-speed applications.
