Overview
The ADS7809U/1K, produced by Texas Instruments, is a 16-bit sampling Analog-to-Digital (A/D) converter that utilizes state-of-the-art CMOS structures. This device is part of the ADS7809 series and is known for its high precision and versatility. It features a 16-bit capacitor-based Successive Approximation Register (SAR) A/D converter with integrated sample-and-hold, reference, clock, and a serial data interface. The ADS7809U/1K 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 | Min | Typ | Max | Units |
|---|---|---|---|---|
| Resolution | 16 | Bits | ||
| Analog Input Voltage Ranges | ±10V, 0V to 5V, etc. | |||
| Sampling Rate | 100 | kHz | ||
| Throughput Time | 9 | 10 | µs | |
| Integral Linearity Error (INL) | ±3 | ±2 | LSB | |
| Differential Linearity Error (DNL) | +3, –2 | ±1 | LSB | |
| Signal-to-Noise + Distortion (SINAD) | 83 | 86 | dB | |
| Power Dissipation | 100 | mW | ||
| Operating Temperature Range | –40 | +85 | °C | |
| Package Type | 20-SOIC |
Key Features
- 16-bit capacitor-based SAR A/D converter with sample-and-hold, reference, clock, and serial data interface.
- Single +5V supply operation with power dissipation under 100mW.
- Six specified input ranges, including ±10V and 0V to 5V.
- Internal or external reference options.
- Serial output with selectable internal or external data clock.
- Output synchronization pulse for ease of use with standard DSP processors.
- No missing codes and high linearity with ±2LSB INL and ±1LSB DNL.
- High signal-to-noise ratio (SINAD) of up to 86dB with a 20kHz input.
- Full-power bandwidth of 250kHz.
- Pin-compatible with the 12-bit ADS7808.
Applications
The ADS7809U/1K is suitable for a variety of applications requiring high-precision analog-to-digital conversion, such as:
- Industrial control systems.
- Medical devices.
- Aerospace and defense systems.
- Automotive systems.
- Data acquisition systems.
- Digital signal processing (DSP) systems.
Q & A
- What is the resolution of the ADS7809U/1K? The resolution of the ADS7809U/1K is 16 bits.
- What are the specified input voltage ranges for the ADS7809U/1K? The specified input voltage ranges include ±10V, 0V to 5V, among others.
- What is the sampling rate of the ADS7809U/1K? The sampling rate is 100kHz.
- Can the ADS7809U/1K use an external reference? Yes, the ADS7809U/1K can use either an internal or an external reference.
- What is the power dissipation of the ADS7809U/1K? The power dissipation is under 100mW.
- What is the operating temperature range of the ADS7809U/1K? The operating temperature range is –40°C to +85°C.
- What type of package is the ADS7809U/1K available in? The ADS7809U/1K is available in a 20-SOIC package.
- Does the ADS7809U/1K have any missing codes? No, the ADS7809U/1K has no missing codes.
- What is the signal-to-noise + distortion (SINAD) of the ADS7809U/1K? The SINAD is up to 86dB with a 20kHz input.
- Is the ADS7809U/1K lead-free and RoHS compliant? Yes, the ADS7809U/1K is lead-free and RoHS compliant.
