Overview
The ADS7824PG4, produced by Texas Instruments, is a 4-channel, 12-bit sampling CMOS analog-to-digital converter (ADC). 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 ADS7824PG4 is available in a 28-pin plastic DIP package and is 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 | |
| Channel-to-Channel Mismatch | ±0.1 | ±0.1 | % | |
| Supply Voltage | +4.75 | +5 | +5.25 | V |
| Operating Temperature Range | –40 | +85 | °C | |
| Aperture Delay | 40 | ns | ||
| Transient Response | 5 | µs | ||
| Overvoltage Recovery | 1 | µs |
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 power down mode
- PIN-compatible with 16-bit ADS7825
- Available in 28-pin plastic DIP and SOIC packages
- Full-scale error drift: ±7 ppm/°C (internal reference)
- Signal-to-(Noise+Distortion): 70 dB at fIN = 1kHz
Applications
- Industrial control systems
- Medical devices requiring high accuracy and low power
- Aerospace and defense applications
- Automotive systems needing robust and reliable ADCs
- Data acquisition systems
- Test and measurement equipment
Q & A
- What is the conversion time of the ADS7824PG4?
The conversion time of the ADS7824PG4 is 25µs maximum.
- What is the power dissipation of the ADS7824PG4 in normal operation?
The power dissipation is 50mW maximum.
- What is the input voltage range for the ADS7824PG4?
The input voltage range is ±10V.
- Does the ADS7824PG4 support both parallel and serial data output?
- What is the operating temperature range of the ADS7824PG4?
The operating temperature range is –40°C to +85°C.
- How many channels does the ADS7824PG4 have?
The ADS7824PG4 has four channels.
- What is the resolution of the ADS7824PG4?
The resolution is 12 bits.
- Can the ADS7824PG4 be used in continuous conversion mode?
- What is the power consumption in power down mode?
The power consumption in power down mode is 50µW.
- Is the ADS7824PG4 PIN-compatible with other models?
