TSM1285 A 300ksps, Single-supply, Low-Power 12-Bit Serial-output ADC FEATURES DESCRIPTION Alternate Source for MAX1285 and higher-speed The TSM1285 a single-supply, single-channel, 12- upgrade to MAX1240 and MAX1241 bit analog-to-digital converter (ADC) - is an alternate Single-Supply Operation: +2.7V to +3.6V source for the MAX1285 and a higher-speed upgrade DNL & INL: 1LSB (max) to the MAX1240 and MAX1240 ADCs. The TSM1285 300ksps Sampling Rate combines a high-bandwidth track-and-hold (T/H), a Low Conversion-Mode Supply Current: high-speed serial digital interface, an internal +2.5V 2.5mA 300ksps reference, and low conversion-mode power Low Supply Current in Shutdown: 2A consumption. The TSM1285 operates from a single Internal Track-and-Hold +2.7V to+3.6V supply and draws less than 2.5mA at Internal +2.5V Reference 300ksps. SPI /QSPI/MICROWIRE 3-Wire Serial- 1 Interface Connecting directly to any SPI, QSPI, MICROWIRE 8-Pin SOIC Package microcontrollers and other interface-compatible computing devices, the TSM1285s 3-wire serial interface is easy to use and doesnt require separate, external logic. An external serial-interface clock APPLICATIONS controls the TSM1285s conversion process and its Process Control and Factory Automation output shift register operation. Data and Low-frequency Signal Acquisition Portable Data Logging In PCB-space-conscious, low-power remote-sensor Pen Digitizers & Tablet Computers and data-acquisition applications, the TSM1285 is an Medical Instrumentation excellent choice for its low-power, ease-of-use, and Battery-powered Instruments small-package-footprint attributes. 1 The TSM1285BC is fully specified over the SPI and QSPI are trademarks of Motorola, Inc. 0C to +70C temperature range. TSM1285BE is fully MICROWIRE is a trademark of National specified over the -40C to +85C temperature range. Semiconductor Corporation. Both products are available in a 8-pin SOIC package. FUNCTIONAL BLOCK DIAGRAM Page 1 2014 Silicon Laboratories, Inc. All rights reserved. TSM1285 ABSOLUTE MAXIMUM RATINGS V to GND.................................................................... -0.3V to +6V Operating Temperature Ranges: DD AIN to GND ...................................................... -0.3V to (V + 0.3V) TSM1285BC ........................................................... 0C to +70C DD REF to GND ..................................................... -0.3V to (V + 0.3V) TSM1285BE ....................................................... -40C to +85C DD Digital Inputs to GND ....................................... -0.3V to (V + 0.3V) Storage Temperature Range .................................. -60C to +150C DD DOUT to GND .................................................. -0.3V to (V + 0.3V) Lead Temperature (Soldering, 10s) ....................................... +300C DD DOUT Current ........................................................................ 25mA Soldering Temperature (Reflow) ........................................... +260C Continuous Power Dissipation (T = +70C): A 8-Pin SOIC (Derate 5.88mW/C above +70C) .............. 471mW Electrical and thermal stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other condition beyond those indicated in the operational sections of the specifications is not implied. Exposure to any absolute maximum rating conditions for extended periods may affect device reliability and lifetime. PACKAGE/ORDERING INFORMATION TEMPERATURE ORDER NUMBER PART MARKING CARRIER QUANTITY RANGE TSM1285BCSA+ Tube 97 T1285B 0C to 70C Tape TSM1285BCSA+T 2500 & Reel TSM1285BESA+ Tube 97 T1285BE -40C to +85C Tape TSM1285BESA+T 2500 & Reel Lead-free Program: Silicon Labs supplies only lead-free packaging. Consult Silicon Labs for products specified with wider operating temperature ranges. Page 2 TSM1285 Rev. 1.0