Overview
The ADS7809UB is a high-performance, 16-bit sampling analog-to-digital converter (ADC) produced by Texas Instruments. This device utilizes state-of-the-art CMOS structures and features a 16-bit capacitor-based Successive Approximation Register (SAR) A/D converter. It includes a sample-and-hold circuit, reference, clock, and a serial data interface. The ADS7809UB is designed for operation over a wide temperature range of -40°C to +85°C, making it suitable for various industrial and precision measurement applications.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Resolution (Bits) | 16 | Sample rate (max) (ksps) | 100 |
| Number of input channels | 1 | Interface type | SPI |
| Architecture | SAR | Input type | Single-ended |
| Input voltage range (max) (V) | 10 | Input voltage range (min) (V) | -10 |
| Operating temperature range (°C) | -40 to 85 | Power consumption (typ) (mW) | 81.5 |
| Analog supply (min) (V) | 4.75 | Analog supply voltage (max) (V) | 5.25 |
| SNR (dB) | 88 | Digital supply (min) (V) | 4.75 |
| Digital supply (max) (V) | 5.25 | Package | SOIC (DW)-20 |
Key Features
- 100kHz sampling rate
- 86dB SINAD with 20kHz input
- ±2LSB INL and no missing codes in DNL
- Six specified input ranges, including ±10V and 0V to 5V
- Serial output and simple DSP interface
- Single +5V supply operation with low power dissipation (under 100mW)
- Pin-compatible with the 12-bit ADS7808
- Uses internal or external reference
- Laser-trimmed scaling resistors for precise input ranges
- Precise temperature compensation for consistent performance
Applications
The ADS7809UB is commonly used in various applications requiring high-resolution analog-to-digital conversion, including:
- Precision measurement systems
- Medical instruments
- Industrial automation
- Data acquisition systems
- Communication equipment
Q & A
- What is the resolution of the ADS7809UB?
The ADS7809UB has a 16-bit resolution.
- What is the maximum sampling rate of the ADS7809UB?
The maximum sampling rate is 100 kHz.
- What is the operating temperature range of the ADS7809UB?
The operating temperature range is -40°C to +85°C.
- What type of interface does the ADS7809UB use?
The ADS7809UB uses an SPI-compatible interface.
- Can the ADS7809UB use an external reference voltage?
- What is the power consumption of the ADS7809UB?
The typical power consumption is 81.5 mW.
- What are the input voltage ranges for the ADS7809UB?
The input voltage ranges include ±10V and 0V to 5V, among others.
- Is the ADS7809UB compatible with other Texas Instruments ADCs?
- What is the package type of the ADS7809UB?
The ADS7809UB comes in a SOIC (DW)-20 package.
- What are some common applications of the ADS7809UB?
