Maxim Integrated MAX127AEAI

Description
The MAX127/MAX128 are multirange, 12-bit data acquisition systems (DAS) that require only a single 5V supply for operation. They accept signals at their analog inputs that may span above the power-supply rail and below ground. These systems provide eight analog input channels that are independently software-programmable for a variety of ranges:
MAX127: ±10V, ±5V, 0 to 10V, 0 to 5V
MAX128: ±VREF, ±VREF/2, 0 to VREF, 0 to VREF/2
This range switching increases the effective dynamic range to 14 bits and provides the flexibility to interface 4-20mA, 12V, and ±15V-powered sensors directly to a single 5V system. These converters are fault protected to ±16.5V; a fault condition on any channel will not affect the conversion result of the selected channel.
Other features include a 5MHz bandwidth track/hold, an 8ksps throughput rate, and the option of an internal 4.096V or external reference.

Features
12-Bit Resolution, 1/2 LSB Linearity
5V Single-Supply Operation
I²C-Compatible, 2-Wire Serial Interface
Four Software-Selectable Input Ranges
8 Analog Input Channels
8ksps Sampling Rate
±16.5V Overvoltage-Tolerant Input Multiplexer
Internal 4.096V or External Reference
Two Power-Down Modes
24-Pin Narrow DIP or 28-Pin SSOP Packages

Applications
Industrial Control Systems
Data-Acquisition Systems
Robotics
Automatic Testing
Battery-Powered Instruments
Medical Instruments