MAX1087ETA+T

19-2036; Rev 3; 8/10 KIT ATION EVALU E L B AVAILA 150ksps, 10-Bit, 2-Channel Single-Ended, and 1-Channel True-Differential ADCs in SOT23 and TDFN Features The MAX1086–MAX1089 are low-cost, micropower, serial output 10-bit analog-to-digital converters (ADCs) available in a tiny 8-pin SOT23. The MAX1086/MAX1088 operate with a single +5V supply. The MAX1087/MAX1089 operate with a single +3V supply. The devices feature a successive-approximation ADC, automatic shutdown, fast wake-up (1.4µs), and a high-speed 3-wire interface. Power consumption is only 0.5mW (VDD = +2.7V) at the maximum sampling rate of 150ksps. AutoShutdown™ (0.1µA) between conversions results in reduced power consumption at slower throughput rates. o Single-Supply Operation +3V (MAX1087/MAX1089) +5V (MAX1086/MAX1088) o AutoShutdown Between Conversions o Low Power 200µA at 150ksps 130µA at 100ksps 65µA at 50ksps 13µA at 10ksps 1.5µA at 1ksps 0.2µA in Shutdown o True-Differential Track/Hold, 150kHz Sampling Rate o Software-Configurable Unipolar/Bipolar Conversion (MAX1088/MAX1089 only) o SPI, QSPI, MICROWIRE-Compatible Interface for DSPs and Processors o Internal Conversion Clock o 8-Pin SOT23 and 8-Pin TDFN Packages The MAX1086/MAX1087 provide 2-channel, singleended operation and accept input signals from 0 to VREF. The MAX1088/MAX1089 accept true-differential inputs ranging from 0 to VREF. Data is accessed using an external clock through the 3-wire SPI™, QSPI™, and MICROWIRE™-compatible serial interface. Excellent dynamic performance, low-power, ease of use, and small package size, make these converters ideal for portable battery-powered data acquisition applications, and for other applications that demand low power consumption and minimal space. Applications Ordering Information TEMP RANGE PART MAX1086EKA-T -40°C to +85°C PINPACKAGE TOP MARK 8 SOT23 AAEZ MAX1086ETA+T -40°C to +85°C 8 TDFN-EP* AFQ Low Power Data Acquisition MAX1087EKA-T -40°C to +85°C 8 SOT23 AAEV Portable Temperature Monitors MAX1087ETA+T -40°C to +85°C 8 TDFN-EP* AFM Flowmeters MAX1088EKA-T -40°C to +85°C 8 SOT23 AAFB Touch Screens MAX1088ETA+T -40°C to +85°C 8 TDFN-EP* MAX1089EKA-T -40°C to +85°C 8 SOT23 AAEX MAX1089ETA+T -40°C to +85°C 8 TDFN-EP* AFO AutoShutdown is a trademark of Maxim Integrated Products. SPI and QSPI are trademarks of Motorola Inc. MICROWIRE is a trademark of National Semiconductor Corp. AFS *EP = Exposed pad. +Denotes a lead(Pb)-free/RoHS-compliant package. T = Tape and reel. Pin Configurations VDD 1 AIN1 (AIN+) 2 AIN2 (AIN-) 3 GND 4 MAX1086 MAX1087 MAX1088 MAX1089 8 SCLK 7 DOUT 6 CNVST 5 REF SCLK DOUT CONVST REF TOP VIEW 8 7 6 5 MAX1086– MAX1089 1 2 3 4 AIN1 AIN2 GND ( ) ARE FOR THE MAX1088/MAX1089 VDD + SOT23 TDFN ________________________________________________________________ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. MAX1086–MAX1089 General Description MAX1086–MAX1089 150ksps, 10-Bit, 2-Channel Single-Ended, and 1-Channel True-Differential ADCs in SOT23 and TDFN ABSOLUTE MAXIMUM RATINGS VDD to GND .............................................................-0.3V to +6V CNVST, SCLK, DOUT to GND......................-0.3V to (VDD+0.3V) REF, AIN1(AIN+), AIN2(AIN-) to GND..........-0.3V to (VDD+0.3V) Maximum Current Into Any Pin ...........................................50mA Continuous Power Dissipation (TA = +70°C) 8-Pin SOT23 (derate 9.70mW/°C above TA = +70°C) ......777mW 8-Pin TDFN (derate 18.2mW/°C above TA = +70°C)...1454.5mW Operating Temperature Ranges.........................-40°C to +85°C Storage Temperature Range .............................-60°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C Soldering Temperature (reflow) SOT23 ..........................................................................+240°C TDFN ............................................................................+260°C 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 (VDD = +2.7V to +3.6V, VREF = +2.5V for MAX1087/MAX1089, or VDD = +4.75V to +5.25V, VREF = +4.096V for MAX1086/MAX1088, 0.1µF capacitor at REF, fSCLK = 8MHz (50% duty cycle), AIN- = GND for MAX1088/MAX1089. TA = TMIN to TMAX, unless otherwise noted. Typical values at TA = +25°C.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS ±1.0 LSB ±1.0 LSB LSB DC ACCURACY (Note 1) Resolution 10 Relative Accuracy (Note 2) INL Differential Nonlinearity DNL Bits No missing codes over temperature Offset Error ±0.5 ±1.0 Gain Error (Note 3) ±1.0 ±2.0 Gain Temperature Coefficient Channel-to-Channel Offset ±0.8 ppm/°C ±0.1 LSB Channel-to-Channel Gain Matching ±0.1 LSB ±0.1 mV Input Common-Mode Rejection CMR VCM = 0V to VDD; zero scale input LSB DYNAMIC SPECIFICATIONS: (fIN (sine-wave) = 10kHz, VIN = 4.096Vp-p for MAX1086/MAX1088 or VIN = 2.5VPP for MAX1087/MAX1089, 150ksps, fSCLK = 8MHz, AIN- = GND for MAX1088/MAX1089) Signal to Noise Plus Distortion SINAD 61 dB Total Harmonic Distortion (up to the 5th harmonic) THD -70 dB Spurious-Free Dynamic Range SFDR Full-Power Bandwidth -3dB point Full-Linear Bandwidth SINAD > 56dB 70 dB 1 MHz 100 kHz CONVERSION RATE Conversion Time T/H Acquisition Time tCONV 3.7 µs tACQ 1.4 µs Aperture Delay 30 ns Aperture Jitter