MAX1179/MAX1187/MAX1189 19-2675 Rev 1 1/03 16-Bit, 135ksps, Single-Supply ADCs with Bipolar Analog Input Range General Description Features The MAX1179/MAX1187/MAX1189 16-bit, low-power, Analog Input Voltage Range: 10V, 5V, or 0 to 10V successive-approximation analog-to-digital converters 16-Bit Wide Parallel Interface (ADCs) feature automatic power-down, a factory- Single +4.75V to +5.25V Analog Supply Voltage trimmed internal clock, and a 16-bit wide parallel inter- face. The devices operate from a single +4.75V to Interfaces with +2.7V to +5.25V Digital Logic +5.25V analog supply and feature a separate digital 2LSB INL (max) supply input for direct interface with +2.7V to +5.25V digital logic. 1LSB DNL (max) The MAX1179 accepts a bipolar input voltage range of Low Supply Current (MAX1189) 5V. The MAX1187 accepts an analog input voltage 5.3mA (External Reference) range from 0 to +10V, while the MAX1189 accepts a 6.2mA (Internal Reference) bipolar analog input voltage range of 10V. All devices 5A AutoShutdown Mode consume only 23mW at a sampling rate of 135ksps Small Footprint when using an external reference and 29mW when 28-Pin TSSOP Package using the internal +4.096V reference. AutoShutdown reduces supply current to 0.4mA at 10ksps. The MAX1179/MAX1187/MAX1189 are ideal for high-perfor- Pin Configuration mance, battery-powered data-acquisition applications. Excellent AC performance (THD = -100dB) and DC TOP VIEW accuracy (2LSB INL) make the MAX1179/MAX1187/ MAX1189 ideal for industrial process control, instrumen- D8 1 28 D7 tation, and medical applications. D9 2 27 D6 The MAX1179/MAX1187/MAX1189 are available in a D5 D10 3 26 28-pin TSSOP package and are fully specified over the -40C to +85C extended temperature range and the D11 4 25 D4 0C to +70C commercial temperature range. D3 D12 5 24 MAX1179 D13 6 23 D2 MAX1187 MAX1189 Applications D14 7 22 D1 D15 8 21 D0 Temperature Sensing and Monitoring R/C 9 20 DV DD Industrial Process Control EOC 10 19 DGND I/O Modules AV 11 18 CS DD Data-Acquisition Systems AGND 12 17 RESET Precision Instrumentation AIN 13 16 REF AGND 14 15 REFADJ TSSOP AutoShutdown is a trademark of Maxim Integrated Products, Inc. Ordering Information INPUT VOLTAGE PART TEMP RANGE PIN-PACKAGE INL (LSB) RANGE MAX1179ACUI 0C to +70C 28 TSSOP 5V 2 MAX1179BCUI 0C to +70C 28 TSSOP 5V 2 Ordering Information continued at end of data sheet. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.16-Bit, 135ksps, Single-Supply ADCs with Bipolar Analog Input Range ABSOLUTE MAXIMUM RATINGS AV to AGND .........................................................-0.3V to +6V Continuous Power Dissipation (T = +70C) DD A DV to DGND.........................................................-0.3V to +6V 28-Pin TSSOP (derate 12.8mW/C above +70C) .....1026mW DD AGND to DGND.....................................................-0.3V to +0.3V Operating Temperature Range AIN to AGND .....................................................-16.5V to +16.5V MAX11 CUI...................................................0C to +70C REF, REFADJ to AGND............................-0.3V to (AV + 0.3V) MAX11 EUI ................................................-40C to +85C DD CS, R/C, RESET to DGND ........................................-0.3V to +6V Storage Temperature Range .............................-65C to +150C D , EOC to DGND ...................................-0.3V to (DV + 0.3V) Junction Temperature......................................................+150C DD Maximum Continuous Current Into Any Pin ........................50mA Lead Temperature (soldering, 10s) .................................+300C 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 conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (AV = DV = +5V 5%, external reference = +4.096V, C = 10F, C = 0.1F, V = AV , T = T to T , DD DD REF REFADJ REFADJ DD A MIN MAX unless otherwise noted. Typical values are at T = +25C.) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DC ACCURACY Resolution RES 16 Bits MAX11 A -1 +1 No missing codes Differential Nonlinearity DNL MAX11 B -1.0 +1.5 LSB over temperature MAX11 C -1 +2 MAX11 A -2 +2 Integral Nonlinearity INL MAX11 B -2 +2 LSB MAX11 C -4 +4 RMS noise, external reference 0.6 Transition Noise LSB RMS Internal reference 0.75 Offset Error -10 0 +10 mV Gain Error 0 0.2 %FSR Offset Drift 16 V/C Gain Drift 1 ppm/C AC ACCURACY (f = 1kHz, V = full range, 135ksps) IN AIN Signal-to-Noise Plus Distortion SINAD 86 90 dB Signal-to-Noise Ratio SNR 87 91 dB Total Harmonic Distortion THD -100 -92 dB Spurious-Free Dynamic Range SFDR 92 103 dB ANALOG INPUT MAX1179 -5 +5 Input Range V MAX1187 0 +10 V AIN MAX1189 -10 +10 MAX1179/MAX1187 Normal operation 5.3 6.9 9.2 MAX1179 Shutdown mode 3 Input Resistance R MAX1177 Shutdown mode 5.3 k AIN Normal operation 7.8 10 13.0 MAX1189 Shutdown mode 6 2 MAX1179/MAX1187/MAX1189