MAX1178/MAX1188 19-2755 Rev 1 8/03 16-Bit, 135ksps, Single-Supply ADCs with Bipolar Analog Input Range General Description Features The MAX1178/MAX1188 16-bit, low-power, successive- Byte-Wide Parallel Interface approximation analog-to-digital converters (ADCs) fea- Analog Input Voltage Range: 10V, 5V ture automatic power-down, a factory-trimmed internal Single +4.75V to +5.25V Analog Supply Voltage clock, and a byte-wide parallel interface. The devices operate from a single +4.75V to +5.25V analog supply Interface with +2.7V to +5.25V Digital Logic and feature a separate digital supply input for direct 2 LSB INL interface with a +2.7V to +5.25V digital logic. 1 LSB DNL The MAX1188 accepts a bipolar analog input voltage range of 10V, while the MAX1178 accepts a bipolar Low Supply Current (max) analog input voltage range of 5V. All devices consume 2.9mA (External Reference) no more than 26.5mW at a sampling rate of 135ksps 3.8mA (Internal Reference) when using an external reference, and 31mW when using 5A AutoShutdown Mode the internal +4.096V reference. AutoShutdown reduces Small Footprint supply current to 0.4mA at 10ksps. 20-Pin TSSOP Package The MAX1178/MAX1188 are ideal for high-perfor- mance, battery-powered, data-acquisition applications. Ordering Information Excellent AC performance (THD = -100dB) and DC accuracy (2 LSB INL) make the MAX1178/MAX1188 INPUT PIN- ideal for industrial process control, instrumentation, and VOLTAGE PART TEMP RANGE PACKAGE medical applications. RANGE (V) The MAX1178/MAX1188 are available in a 20-pin MAX1178ACUP 0C to +70C 20 TSSOP 5 TSSOP package and are fully specified over the -40C MAX1178BCUP 0C to +70C 20 TSSOP 5 to +85C extended temperature range and the 0C to MAX1178CCUP 0C to +70C 20 TSSOP 5 +70C commercial temperature range. MAX1178AEUP -40C to +85C 20 TSSOP 5 MAX1178BEUP -40C to +85C 20 TSSOP 5 MAX1178CEUP -40C to +85C 20 TSSOP 5 Ordering Information continued at end of data sheet. Typical Operating Circuit Applications Temperature Sensing and Monitoring +5V ANALOG +5V DIGITAL Industrial Process Control I/O Modules 0.1 F 0.1 F Data-Acquisition Systems AV DV P DATA DD DD Precision Instrumentation BUS D0D7 ANALOG INPUT AIN OR D8D15 MAX1178 EOC MAX1188 R/C REF CS REFADJ HBEN HIGH 0.1 F 10 F AGND DGND Pin Configuration and Functional Diagram appear at end of BYTE data sheet. LOW BYTE AutoShutdown is a trademark of Maxim Integrated Products, Inc. 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 TSSOP (derate 10.9mW/C above +70C) ..................879mW DD AGND to DGND.....................................................-0.3V to +0.3V Operating Temperature Ranges AIN to AGND .....................................................-16.5V to +16.5V MAX11 CUP..................................................0C to +70C REF, REFADJ to AGND............................-0.3V to (AV + 0.3V) MAX11 EUP...............................................-40C to +85C DD CS, R/C, HBEN 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 MAX1178 -5 +5 Input Range V V AIN MAX1188 -10 +10 Normal operation 5.3 6.9 9.2 MAX1178 Shutdown mode 3.0 Input Resistance R k AIN Normal operation 7.8 10 13.0 MAX1188 Shutdown mode 6.0 2 MAX1178/MAX1188