Overview
The ADC161S626CIMMX/NOPB, produced by Texas Instruments, is a 16-bit successive-approximation register (SAR) Analog-to-Digital Converter (ADC) designed for high accuracy and low power consumption. This ADC features a maximum sampling rate of 250 kSPS and ensures performance over a temperature range of –40°C to +85°C. It is particularly suited for noisy environments due to its excellent common-mode signal rejection ratio of 85 dB. The ADC operates with a single analog supply (VA) and a separate digital input/output supply (VIO), allowing for flexible system design and minimized power consumption.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 16 bits | |
| Conversion Rate | 50 to 250 kSPS | |
| DNL (Differential Non-Linearity) | +0.8 / –0.5 LSB | |
| INL (Integral Non-Linearity) | ±0.8 LSB | |
| Offset Error Temp Drift | 2.5 µV/°C | |
| Gain Error Temp Drift | 0.3 ppm/°C | |
| SNR (Signal-to-Noise Ratio) | 93.2 dBc | |
| THD (Total Harmonic Distortion) | –104 dBc | |
| Power Consumption at 10 kSPS, 5 V | 0.24 mW | |
| Power Consumption at 200 kSPS, 5 V | 5.3 mW | |
| Power Consumption at 250 kSPS, 5 V | 5.8 mW | |
| Power Consumption in Power-Down, 5 V | 10 µW | |
| Analog Supply Voltage (VA) | 4.5 V to 5.5 V | |
| Digital Input/Output Supply Voltage (VIO) | 2.7 V to 5.5 V | |
| Operating Temperature Range | –40°C to +85°C | |
| Package Type | 10-lead VSSOP |
Key Features
- 16-bit resolution with no missing codes
- Ensured performance from 50 to 250 kSPS
- ±0.003% signal span accuracy
- Separate digital input/output supply
- True differential input
- External voltage reference range of 0.5 V to VA
- Zero-power track mode with 0-µsec wake-up delay
- Wide input common-mode voltage range of 0 V to VA
- SPI/QSPI™/MICROWIRE™ compatible serial interface
- Operating temperature range of –40°C to +85°C
- Small 10-lead VSSOP package
Applications
- Direct sensor interface
- I/O modules
- Data acquisition
- Portable systems
- Motor control
- Medical instruments
- Instrumentation and control systems
- Battery-operated systems
- Remote data acquisition applications
Q & A
- What is the maximum sampling rate of the ADC161S626?
The maximum sampling rate of the ADC161S626 is 250 kSPS.
- What is the resolution of the ADC161S626?
The ADC161S626 has a 16-bit resolution with no missing codes.
- What is the signal span accuracy of the ADC161S626?
The signal span accuracy of the ADC161S626 is ±0.003% over the temperature range of –40°C to +85°C.
- What are the voltage ranges for the analog and digital supplies of the ADC161S626?
The analog supply (VA) can range from 4.5 V to 5.5 V, and the digital input/output supply (VIO) can range from 2.7 V to 5.5 V.
- What is the common-mode signal rejection ratio of the ADC161S626?
The ADC161S626 has an excellent common-mode signal rejection ratio of 85 dB.
- What serial interface protocols is the ADC161S626 compatible with?
The ADC161S626 is compatible with SPI, QSPI™, and MICROWIRE™ serial interfaces.
- What is the power consumption of the ADC161S626 at different sampling rates?
The power consumption is 0.24 mW at 10 kSPS, 5.3 mW at 200 kSPS, and 5.8 mW at 250 kSPS, all at 5 V. In power-down mode, it is 10 µW at 5 V.
- What is the operating temperature range of the ADC161S626?
The operating temperature range of the ADC161S626 is –40°C to +85°C.
- In what package is the ADC161S626 available?
The ADC161S626 is available in a small 10-lead VSSOP package.
- What are some typical applications of the ADC161S626?
Typical applications include direct sensor interface, I/O modules, data acquisition, portable systems, motor control, medical instruments, and instrumentation and control systems.
