MAX1157/MAX1159/MAX1175 19-2653 Rev 1 1/03 14-Bit, 135ksps, Single-Supply ADCs with Bipolar Analog Input Range General Description Features The MAX1157/MAX1159/MAX1175 14-bit, low-power, Analog Input Voltage Range 10V, 5V, or 0 to 10V successive-approximation analog-to-digital converters 14-Bit Wide Parallel Interface (ADCs) feature automatic power-down, a factory-trimmed Single +4.75V to +5.25V Analog Supply Voltage internal clock, and a 14-bit wide parallel interface. The devices operate from a single +4.75V to +5.25V analog Interfaces with +2.7V to +5.25V Digital Logic supply and feature a separate digital supply input for 1LSB INL (max) direct interface with +2.7V to +5.25V digital logic. 1LSB DNL (max) The MAX1157 accepts an analog input voltage range from 0 to +10V while the MAX1159 accepts a bipolar Low Supply Current (MAX1159) analog input voltage range of 10V. The MAX1175 5.3mA (External Reference) accepts a bipolar analog input voltage range of 5V. 6.2mA (Internal Reference) All devices consume only 23mW at a sampling rate 5A AutoShutdown Mode of 135ksps when using an external reference and Small Footprint 29mW when using the internal +4.096V reference. 28-Pin TSSOP Package AutoShutdown reduces supply current to 0.4mA at 10ksps. The MAX1157/MAX1159/MAX1175 are ideal for high-performance, battery-powered data-acquisition applications. Excellent AC performance (THD = -100dB) Pin Configuration and DC accuracy (1LSB INL) make the MAX1157/ MAX1159/MAX1175 ideal for industrial process control, TOP VIEW instrumentation, and medical applications. The MAX1157/MAX1159/MAX1175 are available in a D6 1 28 D5 28-pin TSSOP package and are fully specified over the D7 2 27 D4 -40C to +85C extended temperature range and the D8 3 26 D3 0C to +70C commercial temperature range. D9 4 25 D2 D10 5 24 D1 MAX1157 D11 6 23 D0 MAX1159 Applications MAX1175 D12 7 22 N.C. Temperature Sensing and Monitoring D13 8 21 N.C. Industrial Process Control R/C 9 20 DV DD I/O Modules EOC 10 19 DGND Data-Acquisition Systems AV 11 18 CS DD AGND 12 17 RESET Precision Instrumentation AIN 13 16 REF AGND 14 15 REFADJ AutoShutdown is a trademark of Maxim Integrated Products, Inc. TSSOP Ordering Information INPUT VOLTAGE PART TEMP RANGE PIN-PACKAGE INL (LSB) RANGE MAX1157ACUI 0C to +70C 28 TSSOP 0 to +10V 1 MAX1157BCUI 0C to +70C 28 TSSOP 0 to +10V 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.14-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 14 Bits Differential Nonlinearity DNL No missing codes over temperature -1 +1 LSB MAX11 A -1 +1 Integral Nonlinearity INL LSB MAX11 B -2 +2 RMS noise, external reference 0.32 Transition Noise LSB RMS Internal reference 0.34 MAX1159 -10 0 +10 Offset Error mV MAX1157/MAX1175 -10 +10 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 81 85 dB Signal-to-Noise Ratio SNR 82 85 dB Total Harmonic Distortion THD -100 -86 dB Spurious-Free Dynamic Range SFDR 87 103 dB ANALOG INPUT MAX1157 0 +10 Input Range V MAX1159 -10 +10 V AIN MAX1175 -5 +5 MAX1157/MAX1175 Normal operation 5.3 6.9 9.2 MAX1175 Shutdown mode 3 Input Resistance R MAX1157 Shutdown mode 5.3 k AIN Normal operation 7.8 10 13.0 MAX1159 Shutdown mode 6 2 MAX1157/MAX1159/MAX1175