Overview
The ADS8509IBDWRG4 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 is designed for high precision and reliability. It features a complete 16-bit, capacitor-based, successive approximation register (SAR) A/D converter with integrated sample-and-hold, reference, clock, and a serial data interface. The ADS8509 is specified at a 250-kHz sampling rate and operates over a full temperature range of –40°C to 85°C.
Key Specifications
| Parameter | Unit | Min | Typ | Max |
|---|---|---|---|---|
| Resolution | Bits | 16 | 16 | 16 |
| Sampling Rate | kHz | 250 | 250 | 250 |
| Input Voltage Range | V | ±10, ±5, ±3.33, 4, 5, 10 | ||
| Integral Linearity Error (INL) | LSB | –2 | 2 | |
| Differential Linearity Error (DNL) | LSB | –1 | 1 | |
| Power Dissipation | mW | 70 | 100 | 100 |
| Supply Voltage | V | 4.75 | 5 | 5.25 |
| Operating Temperature Range | °C | –40 | 85 | |
| Package Options | 20-pin SO, 28-pin SSOP |
Key Features
- SPI compatible serial output with daisy-chain feature (TAG input)
- Single 5-V supply operation with power dissipation under 100 mW
- Internal or external reference options
- Precision resistors providing various input ranges
- Pin-compatible with ADS7809 (low speed) and ADS8508/7808 (12-bit precision)
- Simple DSP interface with pipeline delay for conversion results
- Selectable internal or external data clock
- No missing codes and high accuracy with ±2 LSB max INL and ±1 LSB max DNL
Applications
The ADS8509IBDWRG4 is suitable for a variety of applications requiring high-precision analog-to-digital conversion, including:
- 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 ADS8509IBDWRG4?
The resolution of the ADS8509IBDWRG4 is 16 bits.
- What is the sampling rate of the ADS8509IBDWRG4?
The sampling rate is 250 kHz.
- What are the input voltage ranges supported by the ADS8509IBDWRG4?
The device supports input voltage ranges of ±10 V, ±5 V, ±3.33 V, 4 V, 5 V, and 10 V.
- Can the ADS8509IBDWRG4 use an external reference?
- What is the power dissipation of the ADS8509IBDWRG4?
The typical power dissipation is 70 mW at a sampling rate of 250 kHz.
- What are the package options available for the ADS8509IBDWRG4?
The device is available in 20-pin SO and 28-pin SSOP packages.
- How does the ADS8509IBDWRG4 handle data output?
The device outputs serial data in either straight binary or binary two’s complement format, synchronized to an internal or external data clock.
- Can multiple ADS8509IBDWRG4 devices be daisy-chained?
- What is the operating temperature range of the ADS8509IBDWRG4?
The device operates over a temperature range of –40°C to 85°C.
- What is the significance of the BUSY pin in the ADS8509IBDWRG4?
The BUSY pin indicates when a conversion is in progress and returns high when the conversion is completed and the data is latched into the output shift register.
