ADC122S101

Features:

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


Application

Portable Systems
Remote Data Acquisition
Instrumentation and Control Systems


Pinout




Specifications

Analog Supply Voltage VA                                       −0.3V to 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 Consumption at TA = 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 ADC122S101 is a low-power, two-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 ADC122S101 is fully specified over a sample rate range of 500 kSPS to 1 MSPS. The converter is based on a successive-approximation register architecture with an internal track-and-hold circuit. It can be configured to accept one or two input signals at inputs IN1 and IN2.

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 ADC122S101 operates with a single supply that can range from +2.7V to +5.25V. Normal power consumption using a +3V or +5V supply is 4.3 mW and 13.1 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 ADC122S101 is packaged in an 8-lead MSOP package. Operation over the industrial temperature range of −40˚C to +85˚C is guaranteed.