Overview
The ADS7816P, produced by Texas Instruments, is a 12-bit, high-speed, micro-power sampling analog-to-digital converter (ADC). This component is designed for low power operation with automatic power down, making it ideal for battery-operated systems or applications where multiple signals need to be acquired simultaneously. It features a synchronous serial interface and a differential input, allowing for precise and efficient data conversion. The ADS7816P is available in various packages, including 8-pin plastic mini-DIP, 8-lead SOIC, and 8-lead MSOP.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Number of Bits | - | 12 | - | - | Bits |
| Sampling Rate | - | - | 200kHz | - | samples/s |
| Input Type | - | - | Differential | - | - |
| Full-Scale Input Span | +In - (-In) | 0 | - | VREF | V |
| Absolute Input Voltage | - | -0.2 VCC | - | +0.2 VCC | V |
| Input Capacitance | - | 25 | - | - | pF |
| Leakage Current | - | ±1 | - | - | µA |
| Resolution | - | 12 | - | - | Bits |
| Integral Linearity Error | - | ±0.5 | ±2 | - | LSB |
| Differential Linearity Error | - | ±0.5 | ±2 | - | LSB |
| Offset Error | - | ±4 | - | - | LSB |
| Gain Error | - | ±4 | - | - | LSB |
| Noise | - | - | 33 | - | LSB |
| Operating Temperature | - | -40°C | - | 85°C | °C |
| Voltage - Supply, Analog | - | - | 5V | - | V |
| Voltage - Supply, Digital | - | - | 5V | - | V |
| Reference Type | - | - | External | - | - |
| Package / Case | - | - | 8-DIP, 8-SOIC, 8-MSOP | - | - |
Key Features
- Low Power Operation: The ADS7816P operates with low power consumption and features automatic power down, making it suitable for battery-operated systems.
- Synchronous Serial Interface: The component uses a synchronous serial interface for data communication.
- Differential Input: It has a differential input, allowing for the rejection of common-mode signals and improved noise immunity.
- Variable Reference Voltage: The reference voltage can be varied from 100mV to 5V, providing flexibility in setting the analog input range.
- High Sampling Rate: The ADC can sample at up to 200kHz, enabling high-speed data acquisition.
- Small Size: Available in compact packages such as 8-pin mini-DIP, 8-lead SOIC, and 8-lead MSOP, making it ideal for space-constrained applications.
- Successive Approximation Register (SAR) Architecture: The converter uses a SAR architecture with capacitive redistribution, which includes a sample/hold function.
Applications
- Battery-Operated Systems: Ideal for systems powered by batteries due to its low power consumption and automatic power down feature.
- Remote and Isolated Data Acquisition: Suitable for remote or isolated data acquisition applications where power efficiency is crucial.
- Multi-Signal Acquisition: Can be used in systems where a large number of signals need to be acquired simultaneously.
- Industrial Automation: Can be applied in industrial automation systems that require precise and efficient data conversion.
- Medical Devices: Suitable for medical devices that require low power consumption and high accuracy in data conversion.
Q & A
- What is the resolution of the ADS7816P?
The ADS7816P has a resolution of 12 bits.
- What is the maximum sampling rate of the ADS7816P?
The maximum sampling rate is 200kHz.
- What type of input does the ADS7816P have?
The ADS7816P has a differential input.
- What is the range of the reference voltage for the ADS7816P?
The reference voltage can be varied from 100mV to 5V.
- What are the available package options for the ADS7816P?
The ADS7816P is available in 8-pin mini-DIP, 8-lead SOIC, and 8-lead MSOP packages.
- What is the operating temperature range of the ADS7816P?
The operating temperature range is from -40°C to 85°C.
- Does the ADS7816P have automatic power down?
Yes, the ADS7816P features automatic power down for low power operation.
- What is the architecture of the ADS7816P?
The ADS7816P uses a Successive Approximation Register (SAR) architecture with capacitive redistribution.
- What type of interface does the ADS7816P use for data communication?
The ADS7816P uses a synchronous serial interface.
- Is the ADS7816P suitable for remote data acquisition?
Yes, the ADS7816P is suitable for remote and/or isolated data acquisition due to its low power consumption and compact size.
