Overview
The ADS7824PB, produced by Texas Instruments, is a 4-channel, 12-bit sampling CMOS analog-to-digital converter (A/D). This device is designed for low-power applications and offers high accuracy and speed. It operates on a single +5V supply and features a four-channel input multiplexer, sample-and-hold circuit, clock, reference, and a parallel/serial microprocessor interface. The ADS7824PB is available in a 28-pin plastic DIP and SOIC packages, both of which are fully specified for operation over the industrial temperature range of –40°C to +85°C.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Conversion Time | 25 | µs | ||
| Power Dissipation | 50 | mW | ||
| Power Down Mode | 50 | µW | ||
| Input Range | ±10 | ±10 | V | |
| Integral Nonlinearity (INL) | ±0.5 | ±0.5 | LSB | |
| Differential Nonlinearity (DNL) | ±0.5 | ±0.5 | LSB | |
| Internal Reference Voltage | 2.48 | 2.5 | 2.52 | V |
| Supply Voltage | +4.75 | +5 | +5.25 | V |
| Operating Temperature Range | –40 | +85 | °C |
Key Features
- Single +5V supply operation
- Four-channel input multiplexer with ±10V input range
- 12-bit resolution with ±0.5 LSB max INL and DNL
- Parallel and serial data output options
- Continuous conversion mode to sequentially digitize all four channels
- Low power dissipation: 50mW max, 50µW in power down mode
- Available in 28-pin plastic DIP and SOIC packages
- Operating temperature range: –40°C to +85°C
Applications
The ADS7824PB is suitable for various applications requiring high accuracy and low power consumption, such as:
- Industrial process control systems
- Medical devices and diagnostic equipment
- Aerospace and defense systems
- Automotive systems requiring precise analog-to-digital conversion
- Data acquisition systems
Q & A
- What is the conversion time of the ADS7824PB?
The conversion time of the ADS7824PB is 25µs maximum.
- What is the power dissipation of the ADS7824PB in normal operation?
The power dissipation is 50mW maximum.
- What is the input voltage range for the ADS7824PB?
The input voltage range is ±10V.
- Does the ADS7824PB support both parallel and serial data output?
- What are the package options for the ADS7824PB?
- What is the operating temperature range of the ADS7824PB?
- Can the ADS7824PB be used in continuous conversion mode?
- What is the internal reference voltage of the ADS7824PB?
- How does the power down mode affect power consumption?
- Is the ADS7824PB sensitive to electrostatic discharge (ESD)?
