Overview
The ADS8344NBG4, produced by Texas Instruments, is an 8-channel, 16-bit, sampling Analog-to-Digital (A/D) converter. It features a synchronous serial interface and is designed for low power consumption and high-speed operation. The device operates on a single supply voltage ranging from 2.7V to 5V and includes an on-board multiplexer, making it ideal for battery-operated systems such as personal digital assistants, portable multi-channel data loggers, and measurement equipment. The ADS8344NBG4 also includes a shutdown mode that significantly reduces power dissipation to under 15µW, enhancing its suitability for power-sensitive applications.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Resolution | 16 | - | - | Bits |
| Full-Scale Input Span | 0 | - | VREF | V |
| Supply Voltage (+VCC) | 2.7 | - | 5.25 | V |
| Conversion Rate | - | 100kHz | - | - |
| SINAD | - | 84dB | - | - |
| Power Dissipation (Typical at 100kHz and +5V) | - | 10mW | - | mW |
| Power Dissipation in Shutdown Mode | - | < 15µW | - | µW |
| Operating Temperature Range | -40°C | - | +85°C | °C |
| Package Types | - | QSOP-20, SSOP-20 | - | - |
Key Features
- PIN FOR PIN compatibility with ADS7844
- SINGLE SUPPLY operation: 2.7V to 5V
- 8-CHANNEL SINGLE-ENDED or 4-CHANNEL DIFFERENTIAL INPUT
- UP TO 100kHz CONVERSION RATE
- 84dB SINAD (Signal-to-Noise and Distortion Ratio)
- SERIAL INTERFACE for data communication
- AVAILABLE IN QSOP-20 AND SSOP-20 PACKAGES
- SHUTDOWN MODE to reduce power dissipation to under 15µW
Applications
- DATA ACQUISITION systems
- TEST AND MEASUREMENT EQUIPMENT
- INDUSTRIAL PROCESS CONTROL systems
- PERSONAL DIGITAL ASSISTANTS and other portable devices
- BATTERY-POWERED SYSTEMS requiring low power consumption
Q & A
- What is the resolution of the ADS8344NBG4?
The ADS8344NBG4 has a resolution of 16 bits.
- What is the operating voltage range of the ADS8344NBG4?
The device operates on a single supply voltage ranging from 2.7V to 5V.
- What is the maximum conversion rate of the ADS8344NBG4?
The maximum conversion rate is up to 100kHz.
- What is the SINAD (Signal-to-Noise and Distortion Ratio) of the ADS8344NBG4?
The SINAD is 84dB.
- What types of packages are available for the ADS8344NBG4?
The device is available in QSOP-20 and SSOP-20 packages.
- What is the power dissipation in the shutdown mode?
The power dissipation in the shutdown mode is under 15µW.
- What is the operating temperature range of the ADS8344NBG4?
The operating temperature range is from -40°C to +85°C.
- Can the ADS8344NBG4 be used in battery-powered systems?
Yes, it is suitable for battery-powered systems due to its low power consumption and shutdown mode.
- What types of input configurations are supported by the ADS8344NBG4?
The device supports 8-channel single-ended or 4-channel differential input configurations.
- How does the serial interface of the ADS8344NBG4 work?
The serial interface is a four-wire interface compatible with several microprocessor families, allowing for low-cost isolation for remote data acquisition.
