Overview
The ADS7816UBG4 is a 12-bit, high-speed, micro-power sampling analog-to-digital converter (ADC) produced by Texas Instruments. This device is designed for low power operation with automatic power down, making it ideal for battery-operated systems and applications where multiple signals need to be acquired simultaneously. The ADS7816UBG4 features a synchronous serial interface and supports differential input signals. It is fabricated on a 0.6µ CMOS process, enabling it to perform up to 200,000 conversions per second while consuming very little power.
Key Specifications
| Parameter | Min | Max | Units | |
|---|---|---|---|---|
| Resolution | 12 | - | - | Bits |
| Sample Rate (max) | - | - | 200 kHz | SPS |
| Analog Voltage AVDD (Min/Max) | 4.5 V | - | 5.25 V | V |
| Digital Supply (Min/Max) | 4.5 V | - | 5.25 V | V |
| Operating Temperature Range | -40°C | - | 85°C | °C |
| Power Consumption (Typ) | - | 1.9 mW | - | mW |
| Input Type | - | Pseudo-Differential, Single-Ended | - | - |
| Interface | - | Serial | - | - |
| Package Type | - | SOIC | - | - |
| RoHS Compliance | - | Compliant | - | - |
Key Features
- Low Power Operation: The ADS7816UBG4 operates with very low power consumption, making it suitable for battery-operated systems.
- Automatic Power Down: The device enters power down mode when the conversion is complete or when the CS pin is high, reducing power dissipation.
- Synchronous Serial Interface: The ADC provides a synchronous serial interface for data transfer, with the digital result clocked out on the DOUT pin.
- Differential Input: The device supports differential input signals through the +In and –In pins, capturing the voltage difference on the internal capacitor array.
- External Reference and Clock: The ADS7816UBG4 requires an external reference voltage (between 100mV and VCC) and an external clock (between 10kHz and 3.2MHz).
- High-Speed Conversion: The ADC can perform up to 200,000 conversions per second.
- Small Package Options: Available in 8-pin plastic mini-DIP, 8-lead SOIC, or 8-lead MSOP packages.
Applications
- Battery-Operated Systems: Ideal for systems where low power consumption is critical.
- Remote and Isolated Data Acquisition: Suitable for applications requiring data acquisition in remote or isolated environments.
- Multi-Signal Acquisition: Can be used in systems where a large number of signals need to be acquired simultaneously.
- Industrial and Automotive Systems: Given its robust specifications, it can be used in various industrial and automotive applications.
- Consumer Electronics: Applicable in consumer electronics where high-speed, low-power ADCs are required.
Q & A
- What is the resolution of the ADS7816UBG4?
The resolution of the ADS7816UBG4 is 12 bits.
- What is the maximum sample rate of the ADS7816UBG4?
The maximum sample rate is 200 kHz.
- What are the power supply requirements for the ADS7816UBG4?
The device requires an analog and digital supply voltage between 4.5V and 5.25V.
- Does the ADS7816UBG4 support differential input?
Yes, it supports differential input through the +In and –In pins.
- What is the operating temperature range of the ADS7816UBG4?
The operating temperature range is from -40°C to 85°C.
- How does the ADS7816UBG4 manage power consumption?
The device enters power down mode when the conversion is complete or when the CS pin is high, reducing power dissipation.
- What type of interface does the ADS7816UBG4 use for data transfer?
The device uses a synchronous serial interface for data transfer.
- What are the package options available for the ADS7816UBG4?
It is available in 8-pin plastic mini-DIP, 8-lead SOIC, or 8-lead MSOP packages.
- Is the ADS7816UBG4 RoHS compliant?
Yes, the ADS7816UBG4 is RoHS compliant.
- What is the typical power consumption of the ADS7816UBG4?
The typical power consumption is 1.9 mW.
