ADC128S022

Features:

·Eight input channels
·Variable power management
·Independent analog and digital supplies
·SPI^TM/QSPI^TM/MICROWIRE^TM/DSP compatible
·Packaged in 16-lead TSSOP


Application

·Automotive Navigation
·Portable Systems
·Medical Instruments
·Mobile Communications
·Instrumentation and Control Systems


Pinout




Specifications

Analog Supply Voltage VA                             -0.3V to 6.5V
Digital Supply Voltage VD                     -0.3V to VA + 0.3V,
                                                                            max 6.5V
Voltage on Any Pin to GND                     -0.3V to VA +0.3V
Input Current at Any Pin (Note 3)                         ±10 mA
Package Input Current(Note 3)                             ±20 mA
Power Dissipation at TA = 25                       See (Note 4)
ESD Susceptibility (Note 5)
Human Body Model                                                   2500V
Machine Model                                                            250V
Soldering Temperature, Infrared,
10 seconds (Note 6)                                                  260
Junction Temperature                                              +150
Storage Temperature                                 -65 to +150



Description

The ADC128S022 is a low-power, eight-channel CMOS 12- bit analog-to-digital converter specified for conversion throughput rates of 50 kSPS to 200 kSPS. The converter is based on a successive-approximation register architecture with an internal track-and-hold circuit. It can be configured to accept up to eight input signals at inputs IN0 through IN7.

The output serial data is straight binary and is compatible with several standards, such as SPI™, QSPI, MICROWIRE, and many common DSP serial interfaces.

The ADC128S022 may be operated with independent analog and digital supplies. The analog supply (VA) can range from +2.7V to +5.25V, and the digital supply (VD) can range from +2.7V to VA. Normal power consumption using a +3V or +5V supply is 1.2 mW and 7.5 mW, respectively. The powerdown feature reduces the power consumption to 0.06 µW using a +3V supply and 0.25 µW using a +5V supply.
The ADC128S022 is packaged in a 16-lead TSSOP package. Operation over the extended industrial temperature range of -40 to +105 is guaranteed.