MAX1132

Features:

 200ksps (Bipolar) and 150ksps (Unipolar)
Sampling ADC
 16-Bits, No Missing Codes
 1.5LSB INL Guaranteed
 85dB (min) SINAD 
+5V Single-Supply Operation
 Low-Power Operation, 7.5mA (Unipolar Mode)
 2.5µA Shutdown Mode
 Software-Configurable Unipolar and Bipolar Input
Ranges
0 to +12V and ±12V (MAX1132)
0 to +4.096V and ±4.096V (MAX1133)
Internal or External Reference
 Internal or External Clock
 SPI/QSPI/MICROWIRE-Compatible Serial Interface 
Three User-Programmable Logic Outputs 
Small 20-Pin SSOP Package


Application

Industrial Process Control
Industrial I/O Modules
Data-Acquisition Systems
Medical Instruments
Portable and Battery-Powered Equipment


Pinout




Specifications

AV_DD to AGND, DV_DD to  DGND .............................-0.3V to +6V
AGND to DGND.....................................................-0.3V to +0.3V
AIN to AGND.....................................................................±16.5V
REFADJ, CREF, REF to AGND.................-0.3V to (AVDD + 0.3V)
Digital Inputs to DGND.............................................-0.3V to +6V
Digital Outputs to DGND .........................-0.3V to (DVDD + 0.3V)
Continuous Power Dissipation (TA = +70°C)
20-Pin SSOP (derate 8.00mW/°C above +70°C) .........640mW
Operating Temperature Ranges
MAX113_CAP ......................................................0°C to +70°C
MAX113_EAP....................................................-40°C to +85°C
Storage Temperature Range .............................-60°C to +150°C
Junction Temperature......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C


Description

The MAX1132/MAX1133 are 200ksps, 16-bit ADCs. These serially interfaced ADCs connect directly to SPI™, QSPI™, and MICROWIRE™ devices without external logic. They combine an input scaling network, internal track/hold, clock, a +4.096V reference, and three general-purpose digital output pins (for external multiplexer or PGA control) in a 20-pin SSOP package. The excellent dynamic performance (SINAD  85dB), high-speed (200ksps), and low power (7.5mA) of these ADCs, make them ideal for applications such as indus- trial process control, instrumentation, and medical
applications. The MAX1132 accepts input signals of 0 to +12V (unipolar) or ±12V (bipolar), while the MAX1133 accepts input signals of 0 to +4.096V (unipo- lar) or ±4.096V (bipolar). Operating from a single +4.75V to +5.25V analog supply and a +4.75V to +5.25V digital supply, power-down modes reduce  current consumption to 1mA at 10ksps and further reduce supply current to less than 20µA at slower data rates. A serial strobe output (SSTRB) allows direct con- nection to the TMS320 family of digital signal proces- sors. The MAX1132/MAX1133 user can select either the internal clock, or an external serial-interface clock for the ADC to perform analog-to-digital conversions.
The MAX1132/MAX1133 feature internal calibration cir- cuitry to correct linearity and offset errors. On-demand calibration allows the user to optimize performance. Three user-programmable logic outputs are provided for the control of an 8-channel mux or a PGA.