Overview
The Texas Instruments ADS7809UB/1K is a 16-bit sampling Analog-to-Digital (A/D) converter that utilizes state-of-the-art CMOS structures. This device is designed for high precision and efficiency, making it suitable for a variety of applications requiring accurate analog-to-digital conversion. The ADS7809UB/1K features a capacitor-based Successive Approximation Register (SAR) A/D converter, along with a sample-and-hold circuit, reference, clock, and a serial data interface. It operates from a single +5V supply and is fully specified for operation over the industrial temperature range of -40°C to +85°C.
Key Specifications
| Parameter | Description |
|---|---|
| Resolution | 16 Bits |
| Sampling Rate (Max) | 100 kHz |
| Analog Voltage (AVDD) | 4.75 V to 5.25 V |
| Digital Supply | 4.75 V to 5.25 V |
| Input Range | -10 V to 10 V |
| Input Type | Single-Ended |
| INL (Max) | ±2 LSB |
| SNR | 88 dB |
| THD (Typ) | -100 dB |
| Power Consumption (Typ) | 81.5 mW |
| Operating Temperature Range | -40°C to 85°C |
| Package Type | SOIC-20 |
Key Features
- 100 kHz sampling rate.
- 86 dB SINAD with 20 kHz input.
- ±2 LSB Integral Non-Linearity (INL).
- No missing codes in 16-bit resolution.
- Six specified input ranges, including ±10 V and 0 V to 5 V.
- Serial output interface.
- Single +5V supply operation.
- Pin-compatible with 12-bit ADS7808.
- Uses internal or external reference.
- Maximum power dissipation of 100 mW.
- Simple DSP interface.
Applications
The ADS7809UB/1K is versatile and can be used in various applications requiring high-precision analog-to-digital conversion. Some common applications include:
- Data acquisition systems
- Industrial control systems
- Medical devices
- Aerospace and defense systems
- Automotive systems
- Digital signal processing (DSP) systems
Q & A
- What is the resolution of the ADS7809UB/1K?
The resolution of the ADS7809UB/1K is 16 bits.
- What is the maximum sampling rate of the ADS7809UB/1K?
The maximum sampling rate is 100 kHz.[
- What is the operating voltage range for the ADS7809UB/1K?
The operating voltage range is from 4.75 V to 5.25 V for both analog and digital supplies.[
- What is the input range of the ADS7809UB/1K?
The input range can be up to ±10 V and includes other specified ranges.[
- What is the typical power consumption of the ADS7809UB/1K?
The typical power consumption is 81.5 mW.[
- What is the operating temperature range for the ADS7809UB/1K?
The operating temperature range is from -40°C to 85°C.[
- What package type is the ADS7809UB/1K available in?
The ADS7809UB/1K is available in a SOIC-20 package.[
- Does the ADS7809UB/1K support external or internal reference?
Yes, it supports both internal and external reference.[
- Is the ADS7809UB/1K pin-compatible with other models?
Yes, it is pin-compatible with the 12-bit ADS7808.[
- What is the typical THD of the ADS7809UB/1K?
The typical Total Harmonic Distortion (THD) is -100 dB.[
