Overview
The ADS8509IBDWR is a 16-bit sampling analog-to-digital (A/D) converter produced by Texas Instruments. This device utilizes state-of-the-art CMOS structures and includes a complete 16-bit, capacitor-based, successive approximation register (SAR) A/D converter with sample-and-hold, reference, clock, and a serial data interface. It operates at a 250-kHz sampling rate and is specified over the full temperature range of -40°C to 85°C. The ADS8509IBDWR is designed for single 5-V supply operation, with a power dissipation of typically 70 mW at 250 kSPS, and is available in 20-pin SO and 28-pin SSOP packages.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Resolution | 16 | 16 | 16 | Bits |
| Sampling Rate | 250 | 250 | 250 | kHz |
| Input Voltage Range | ±3.33 V, ±5 V, ±10 V, 4 V, 5 V, 10 V | V | ||
| Integral Linearity Error (INL) | -3 | 3 | LSB | |
| Differential Linearity Error (DNL) | -2 | 2 | LSB | |
| No Missing Codes | 15 | 16 | Bits | |
| Internal Reference Voltage | 2.48 | 2.5 | 2.52 | V |
| Power Dissipation at 250 kSPS | 70 | 100 | mW | |
| Operating Temperature Range | -40 | 85 | °C |
Key Features
- 250-kHz sampling rate
- 16-bit resolution with ±2 LSB max INL and ±1 LSB max DNL, no missing codes
- SPI compatible serial output with daisy-chain (TAG) feature
- Single 5-V supply operation
- Uses internal or external reference
- Low power dissipation: typically 70 mW at 250 kSPS
- Available in 20-pin SO and 28-pin SSOP packages
- Simple DSP interface
- Pin-compatible with ADS7809 (low speed) and 12-bit ADS8508/7808
Applications
- Industrial Process Control
- Data Acquisition Systems
- Digital Signal Processing
- Medical Equipment
- Instrumentation
Q & A
- What is the sampling rate of the ADS8509IBDWR?
The sampling rate of the ADS8509IBDWR is 250 kHz.
- What are the input voltage ranges supported by the ADS8509IBDWR?
The ADS8509IBDWR supports input voltage ranges of ±3.33 V, ±5 V, ±10 V, 4 V, 5 V, and 10 V.
- Can the ADS8509IBDWR use an external reference voltage?
- What is the power dissipation of the ADS8509IBDWR at 250 kSPS?
- What are the package options available for the ADS8509IBDWR?
- Is the ADS8509IBDWR compatible with other Texas Instruments A/D converters?
- How does the TAG feature work in the ADS8509IBDWR?
- What is the operating temperature range of the ADS8509IBDWR?
- Can the ADS8509IBDWR be used with an external clock for data output?
- What is the significance of the BUSY pin in the ADS8509IBDWR?
