Overview
The ADS7842E/1KG4, produced by Texas Instruments, is a comprehensive 4-channel, 12-bit Analog-to-Digital Converter (ADC). This device incorporates a 12-bit, capacitor-based, Successive Approximation Register (SAR) ADC, a sample-and-hold amplifier, and an interface designed for microprocessor use. It also features parallel, 3-state output drivers. The ADS7842 is optimized for low power consumption, operating at a sampling rate of up to 200kHz while dissipating only 2mW of power. It is suitable for a wide range of applications, including battery-operated systems, portable multi-channel dataloggers, and various measurement equipment. The device is available in an SSOP-28 package and is tested over a temperature range of -40°C to +85°C.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12 | Bits |
| Supply Voltage | 2.7V to 5V | V |
| Sampling Rate | Up to 200kHz | kHz |
| Input Channels | 4 | - |
| Power Dissipation | 2mW | mW |
| Integral Nonlinearity (INL) and Differential Nonlinearity (DNL) | ±1LSB | - |
| Signal-to-Noise and Distortion Ratio (SINAD) | 72dB | dB |
| Operating Temperature Range | -40°C to +85°C | °C |
| Package Type | SSOP-28 | - |
Key Features
- SINGLE SUPPLY: 2.7V to 5V
- 4-CHANNEL INPUT MULTIPLEXER
- UP TO 200kHz SAMPLING RATE
- FULL 12-BIT PARALLEL INTERFACE
- ±1LSB INL AND DNL
- NO MISSING CODES
- 72dB SINAD
- LOW POWER: 2mW
- SSOP-28 PACKAGE
Applications
- DATA ACQUISITION
- TEST AND MEASUREMENT
- INDUSTRIAL PROCESS CONTROL
- MEDICAL INSTRUMENTS
- LABORATORY EQUIPMENT
- Battery-operated systems, such as portable, multi-channel dataloggers and measurement equipment
Q & A
- What is the resolution of the ADS7842E/1KG4? The resolution of the ADS7842E/1KG4 is 12 bits.
- What is the supply voltage range for the ADS7842E/1KG4? The supply voltage range is from 2.7V to 5V.
- What is the maximum sampling rate of the ADS7842E/1KG4? The maximum sampling rate is up to 200kHz.
- How many input channels does the ADS7842E/1KG4 have? The ADS7842E/1KG4 has 4 input channels.
- What is the power dissipation of the ADS7842E/1KG4? The power dissipation is 2mW.
- What is the operating temperature range of the ADS7842E/1KG4? The operating temperature range is from -40°C to +85°C.
- In what package is the ADS7842E/1KG4 available? The ADS7842E/1KG4 is available in an SSOP-28 package.
- What are some typical applications of the ADS7842E/1KG4? Typical applications include data acquisition, test and measurement, industrial process control, medical instruments, and laboratory equipment.
- What is the SINAD of the ADS7842E/1KG4? The SINAD of the ADS7842E/1KG4 is 72dB.
- Does the ADS7842E/1KG4 have any missing codes? No, the ADS7842E/1KG4 has no missing codes.
