Overview
The ADS7853IPWR is a high-speed, dual-channel, 14-bit analog-to-digital converter (ADC) produced by Texas Instruments. It belongs to a family of pin-compatible ADCs that include the ADS8353 and ADS7253, offering 16-bit, 14-bit, and 12-bit resolutions, respectively. This device supports both single-ended and pseudo-differential analog inputs and is designed for simultaneous sampling of two channels. The ADS7853IPWR is fully specified over an extended industrial temperature range of –40°C to 125°C and is available in a 16-pin TSSOP package.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 14 bits |
| Sample Rate | 1 MSPS |
| Input Channels | 2 |
| Input Type | Single-Ended, Pseudo-Differential |
| Analog Voltage (AVDD) | 4.5 V to 5.5 V |
| Digital Supply | 1.65 V to 5.5 V |
| Operating Temperature Range | –40°C to 125°C |
| Package Type | TSSOP-16 |
| Power Consumption (Typical) | 45 mW |
| SNR | 82 dB |
| THD (Typical) | –90 dB |
| Interface | SPI |
| Reference Mode | External, Internal |
Key Features
- Simultaneous sampling of two channels
- Supports single-ended and pseudo-differential analog inputs
- High-speed operation: 1 MSPS for 14-bit resolution
- Excellent DC performance: 14-bit NMC DNL, ±2-LSB Max INL
- Excellent AC performance: 82-dB SNR, –90-dB THD
- Dual, programmable, and buffered 2.5-V internal reference
- Flexible serial interface (SPI) for easy communication with host controllers
- Low-power modes to optimize power consumption
- Small footprint: Available in TSSOP-16 and WQFN-16 packages
Applications
The ADS7853IPWR is suitable for a variety of applications that require high-speed, dual-channel analog-to-digital conversion. These include:
- Industrial automation and control systems
- Medical devices, such as patient monitoring systems
- Aerospace and defense systems requiring high reliability and performance
- Automotive systems, particularly those needing robust temperature performance
- Data acquisition systems in scientific and research environments
Q & A
- What is the resolution of the ADS7853IPWR?
The ADS7853IPWR has a resolution of 14 bits.
- What is the maximum sample rate of the ADS7853IPWR?
The maximum sample rate is 1 MSPS.
- What types of analog inputs does the ADS7853IPWR support?
The device supports both single-ended and pseudo-differential analog inputs.
- What is the operating temperature range of the ADS7853IPWR?
The operating temperature range is –40°C to 125°C.
- What package types are available for the ADS7853IPWR?
The device is available in TSSOP-16 and WQFN-16 packages.
- What is the typical power consumption of the ADS7853IPWR?
The typical power consumption is 45 mW.
- Does the ADS7853IPWR have low-power modes?
Yes, the device supports two low-power modes to optimize power consumption.
- What interface does the ADS7853IPWR use for communication?
The device uses a flexible SPI (Serial Peripheral Interface) for communication with host controllers.
- Is the ADS7853IPWR RoHS compliant?
Yes, the ADS7853IPWR is RoHS compliant.
- What are the key DC performance metrics of the ADS7853IPWR?
The device has a 14-bit NMC DNL, ±2-LSB Max INL.
