Overview
The ADS8866IDGS is a 16-bit, 100-kSPS (kilosamples per second), single-ended input, analog-to-digital converter (ADC) produced by Texas Instruments. This device is designed for low-power, high-accuracy applications and features a SPI-compatible serial interface with daisy-chain capability. It operates with a wide range of reference voltages (2.5 V to 5 V) and supply voltages (AVDD: 2.7 V to 3.6 V, DVDD: 1.65 V to 3.6 V), making it versatile for various system designs. The ADS8866IDGS is optimized for low-power consumption, with power dissipation as low as 0.7 mW at 100 kSPS, making it suitable for battery-operated devices and other power-sensitive applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 16 Bits | |||
| Sample Rate | 100 kSPS | |||
| Input Range | 0 | VREF | V | |
| AVDD | 2.7 | 3.6 | V | |
| DVDD | 1.65 | 3.6 | V | |
| Reference Voltage (VREF) | 2.5 | 5 | V | |
| Operating Temperature | -40 | 85 | °C | |
| Power Consumption at 100 kSPS | 0.7 | mW | ||
| Power-Down Current (AVDD) | 50 | nA | ||
| Conversion Time | 500 | 8800 | ns | |
| Acquisition Time | 1200 | ns | ||
| SNR | 93 | dB | ||
| THD | -108 | dB | ||
| INL | -2 | 2 | LSB | |
| DNL | -1 | 1 | LSB | |
Key Features
- No latency output
- Unipolar, single-ended input range: 0 to +VREF
- SPI-compatible serial interface with daisy-chain option
- Excellent AC and DC performance: SNR of 93 dB, THD of -108 dB
- Low-power dissipation: 0.7 mW at 100 kSPS and 70 µW at 10 kSPS
- Wide operating range: AVDD (2.7 V to 3.6 V), DVDD (1.65 V to 3.6 V), and REF (2.5 V to 5 V)
- Operating temperature range: -40°C to +85°C
- Full-scale step settling to 16-bit accuracy in 1200 ns
- Available in VSSOP-10 and VSON-10 packages
Applications
- Automatic test equipment (ATE)
- Instrumentation and process controls
- Precision medical equipment
- Low-power, battery-operated instruments
Q & A
- What is the resolution of the ADS8866IDGS ADC?
The ADS8866IDGS has a resolution of 16 bits. - What is the maximum sample rate of the ADS8866IDGS?
The maximum sample rate is 100 kSPS. - What is the input range of the ADS8866IDGS?
The input range is from 0 to +VREF. - What are the operating voltage ranges for AVDD and DVDD?
AVDD operates from 2.7 V to 3.6 V, and DVDD operates from 1.65 V to 3.6 V. - What is the reference voltage range for the ADS8866IDGS?
The reference voltage range is from 2.5 V to 5 V. - What is the power consumption at 100 kSPS?
The power consumption is approximately 0.7 mW at 100 kSPS. - What is the power-down current for AVDD?
The power-down current for AVDD is 50 nA. - How long does it take for the ADC to settle to 16-bit accuracy?
The ADC settles to 16-bit accuracy in 1200 ns. - What are the typical applications of the ADS8866IDGS?
Typical applications include automatic test equipment, instrumentation and process controls, precision medical equipment, and low-power, battery-operated instruments. - What are the available package options for the ADS8866IDGS?
The ADS8866IDGS is available in VSSOP-10 and VSON-10 packages.
