Overview
The ADS7816PC is a 12-bit, high-speed, micro power sampling analog-to-digital converter (ADC) produced by Texas Instruments, formerly known as Burr-Brown. This ADC is designed for low power operation and features automatic power down, making it ideal for battery-operated systems and applications where multiple signals need to be acquired simultaneously. The device operates with a synchronous serial interface and supports differential input signals. It is available in various packages, including 8-pin plastic mini-DIP, 8-lead SOIC, and 8-lead MSOP.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Number of Bits | 12 | - | - | - |
| Sampling Rate | - | - | 200 kHz | - |
| Input Type | - | - | Differential, Pseudo-Differential, Single-Ended | - |
| Full-Scale Input Span | 0 | - | VREF | V |
| Absolute Input Voltage | -0.2 VCC | - | +0.2 VCC | V |
| Integral Linearity Error | ±0.5 LSB | ±2 LSB | ±2 LSB | LSB |
| Differential Linearity Error | ±0.25 LSB | ±0.75 LSB | ±2 LSB | LSB |
| Offset Error | ±4 LSB | - | - | LSB |
| Gain Error | ±4 LSB | - | - | LSB |
| Noise | - | - | 33 µVrms | µVrms |
| Supply Voltage (Analog/Digital) | 4.5 V | - | 5.25 V | V |
| Operating Temperature | -40°C | - | 85°C | °C |
| Package | - | - | 8-pin DIP, 8-lead SOIC, 8-lead MSOP | - |
Key Features
- Low Power Operation: The ADS7816PC features automatic power down, making it suitable for battery-operated systems and applications requiring low power consumption.
- High-Speed Sampling: Capable of sampling at up to 200 kHz.
- Differential Input: Supports differential input signals, with the ability to capture the voltage difference between the +In and –In input pins.
- Synchronous Serial Interface: Provides a serial data output, most significant bit first, with no pipeline delay.
- External Reference Voltage: The reference voltage can be varied from 100 mV to 5 V, setting the range of the analog input.
- Small Size: Available in compact packages such as 8-pin DIP, 8-lead SOIC, and 8-lead MSOP.
Applications
- Battery-Operated Systems: Ideal for systems where power consumption needs to be minimized.
- Remote and Isolated Data Acquisition: Suitable for applications requiring data acquisition in remote or isolated environments.
- Multi-Signal Acquisition: Can handle a large number of signals simultaneously, making it useful in various data acquisition systems.
- Industrial Automation: Can be used in industrial automation systems that require precise and high-speed analog-to-digital conversion.
Q & A
- What is the resolution of the ADS7816PC?
The ADS7816PC has a resolution of 12 bits.
- What is the maximum sampling rate of the ADS7816PC?
The maximum sampling rate is 200 kHz.
- What type of input does the ADS7816PC support?
The ADS7816PC supports differential, pseudo-differential, and single-ended input types.
- What is the range of the external reference voltage for the ADS7816PC?
The external reference voltage can range from 100 mV to 5 V.
- What are the available package options for the ADS7816PC?
The ADS7816PC is available in 8-pin DIP, 8-lead SOIC, and 8-lead MSOP packages.
- What is the operating temperature range of the ADS7816PC?
The operating temperature range is from -40°C to 85°C.
- Does the ADS7816PC have automatic power down?
Yes, the ADS7816PC features automatic power down to reduce power consumption.
- What is the architecture of the ADS7816PC?
The ADS7816PC uses a successive approximation register (SAR) architecture.
- How is the digital data output provided by the ADS7816PC?
The digital data is provided serially, most significant bit first, on the DOUT pin.
- Is there any pipeline delay in the conversion process of the ADS7816PC?
No, there is no pipeline delay in the conversion process.
