ADC124S021

Features:

Specified over a range of sample rates.
Four input channels
Variable power management
Single power supply with 2.7V - 5.25V range


Application

Portable Systems
Remote Data Aquisitions
Instrumentation and Control Systems


Pinout




Specifications

Supply Voltage V_A                                             −0.3V to 6.5V
Voltage on Any Pin to GND                         −0.3V to V_A +0.3V
Input Current at Any Pin (Note 3)                              ±10 mA
Package Input Current(Note 3)                                 ±20 mA
Power Consumption at T_A = 25˚C                      See (Note 4)
ESD Susceptibility (Note 5)
Human Body Model                                                     2500V
Machine Model                                                              250V
Junction Temperature                                               +150˚C
Storage Temperature                                 −65˚C to +150˚C


Description

The ADC124S021 is a low-power, four-channel CMOS 12-bit analog-to-digital converter with a high-speed serial interface. Unlike the conventional practice of specifying performance at a single sample rate only, the ADC124S021 is fully specified over a sample rate range 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 four input signals at inputs IN1 through IN4.

The output serial data is straight binary, and is compatible with several standards, such as SPI™, QSPI™, MICROW- IRE, and many common DSP serial interfaces. The ADC124S021 operates with a single supply that can range from +2.7V to +5.25V. Normal power consumption using a +3V or +5V supply is 2.2 mW and 7.9 mW, respectively. The power-down feature reduces the power consumption to just 0.14 µW using a +3V supply, or 0.32 µW using a +5V supply. The ADC124S021 is packaged in a 10-lead MSOP package. Operation over the industrial temperature range of −40˚C to +85˚C is guaranteed.