Overview
The ADS7830IPWT, produced by Texas Instruments, is a single-supply, low-power, 8-bit analog-to-digital converter (ADC) with an I2C serial interface. This device is designed for applications requiring multiple analog input channels and low power consumption. It features an 8-channel multiplexer, a sample-and-hold amplifier, and an internal asynchronous clock, making it ideal for remote data acquisition and isolated data acquisition systems. The ADS7830IPWT is available in a TSSOP-16 package and supports all three I2C modes: standard, fast, and high-speed.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Power-Supply Voltage (+VDD) | 2.7 | - | 5.25 | V |
| Sampling Rate | - | - | 70 kHz | - |
| Resolution | - | - | 8 bits | - |
| Integral Linearity Error (INL) | ±0.1 | - | ±0.5 | LSB |
| Differential Linearity Error (DNL) | ±0.1 | - | ±0.5 | LSB |
| Offset Error | ±0.5 | - | ±1 | LSB |
| Gain Error | ±0.1 | - | ±0.5 | LSB |
| Power Consumption (Standard Mode) | - | - | 180 µW | - |
| Power Consumption (Fast Mode) | - | - | 300 µW | - |
| Power Consumption (High-Speed Mode) | - | - | 675 µW | - |
| Operating Temperature Range | -40 | - | 125 | °C |
| Package Type | - | - | TSSOP-16 | - |
Key Features
- 8-bit resolution with no missing codes
- 8-channel multiplexer with 4 differential or 8 single-ended inputs
- Supports all three I2C modes: standard, fast, and high-speed
- Internal 2.5V reference and buffer
- Low power consumption: 180µW (standard mode), 300µW (fast mode), and 675µW (high-speed mode)
- Operating voltage range: 2.7V to 5V
- Integral and differential linearity error of ±0.5 LSB
- Built-in sample-and-hold amplifier and asynchronous clock
- Direct pin compatibility with ADS7828
- STEMMA QT form factor for easy interface with other sensors and accessories.
Applications
- Voltage-supply monitoring
- Isolated data acquisition systems
- Transducer interfaces
- Battery-operated systems
- Remote data acquisition systems
- Adding multiple analog input channels to microcontrollers or single-board computers without built-in ADCs, such as Raspberry Pi.
Q & A
- What is the resolution of the ADS7830IPWT?
The ADS7830IPWT has an 8-bit resolution.
- How many analog input channels does the ADS7830IPWT support?
The ADS7830IPWT supports 8 analog input channels, which can be configured as 4 differential or 8 single-ended inputs.
- What are the supported I2C modes for the ADS7830IPWT?
The ADS7830IPWT supports standard, fast, and high-speed I2C modes.
- What is the maximum sampling rate of the ADS7830IPWT?
The maximum sampling rate is 70 kHz.
- What is the power consumption of the ADS7830IPWT in different I2C modes?
The power consumption is 180µW in standard mode, 300µW in fast mode, and 675µW in high-speed mode.
- What is the operating voltage range of the ADS7830IPWT?
The operating voltage range is from 2.7V to 5V.
- Does the ADS7830IPWT have an internal reference voltage?
Yes, the ADS7830IPWT has an internal 2.5V reference voltage and buffer.
- What package type is the ADS7830IPWT available in?
The ADS7830IPWT is available in a TSSOP-16 package.
- Can the ADS7830IPWT be used in remote data acquisition systems?
Yes, the ADS7830IPWT is suitable for remote data acquisition systems due to its low power consumption and I2C interface.
- How can the ADS7830IPWT be interfaced with other devices?
The ADS7830IPWT can be interfaced using the I2C serial interface and requires only four wires (SDA, SCL, VDD, and GND). It also supports STEMMA QT form factor for easy connection with other sensors and accessories.
