MAX1036MAX1039 19-2442 Rev 4 5/09 2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/12-Channel 2-Wire Serial 8-Bit ADCs General Description Features The MAX1036MAX1039 low-power, 8-bit, multichannel, 2 High-Speed I C-Compatible Serial Interface analog-to-digital converters (ADCs) feature internal 400kHz Fast Mode track/hold (T/H), voltage reference, clock, and an 1.7MHz High-Speed Mode 2 I C-compatible 2-wire serial interface. These devices Single Supply operate from a single supply and require only 350A at 2.7V to 3.6V (MAX1037/MAX1039) the maximum sampling rate of 188ksps. Auto- Shutdown powers down the devices between conver- 4.5V to 5.5V (MAX1036/MAX1038) sions reducing supply current to less than 1A at low Internal Reference throughput rates. The MAX1036/MAX1037 have four ana- 2.048V (MAX1037/MAX1039) log input channels each, while the MAX1038/MAX1039 4.096V (MAX1036/MAX1038) have twelve analog input channels. The analog inputs are software configurable for unipolar or bipolar and single- External Reference: 1V to V DD ended or pseudo-differential operation. Internal Clock The full-scale analog input range is determined by the 4-Channel Single-Ended or 2-Channel Pseudo- internal reference or by an externally applied reference Differential (MAX1036/MAX1037) voltage ranging from 1V to V . The MAX1037/ DD MAX1039 feature a 2.048V internal reference and the 12-Channel Single-Ended or 6-Channel Pseudo- MAX1036/MAX1038 feature a 4.096V internal reference. Differential (MAX1038/MAX1039) The MAX1036/MAX1037 are available in 8-pin SOT23 Internal FIFO with Channel-Scan Mode packages. The MAX1038/MAX1039 are available in 16- Low Power pin QSOP packages. The MAX1036MAX1039 are guar- anteed over the extended industrial temperature range 350A at 188ksps (-40C to +85C). Refer to MAX1136MAX1139 for 10-bit 110A at 75ksps devices and to the MAX1236MAX1239 for 12-bit 8A at 10ksps devices. 1A in Power-Down Mode Applications Software Configurable Unipolar/Bipolar Small Packages Handheld Portable Applications 8-Pin SOT23 (MAX1036/MAX1037) Medical Instruments 16-Pin QSOP (MAX1038/MAX1039) Battery-Powered Test Equipment Solar-Powered Remote Systems Pin Configurations and Typical Operating Circuit appear Received-Signal-Strength Indicators at end of data sheet. System Supervision Ordering Information/Selector Guide 2 TUE INPUT I C INTERNAL PART PIN-PACKAGE TOP MARK (LSB) CHANNELS SLAVE ADDRESS REFERENCE (V) MAX1036EKA+T 8 SOT23 2 4 1100100 4.096 AAJE MAX1037EKA+T 8 SOT23 2 4 1100100 2.048 AAJG MAX1038AEEE+ 16 QSOP 1 12 1100101 4.096 MAX1039AEEE+ 16 QSOP 1 12 1100101 2.048 +Denotes a lead(Pb)-free/RoHS-compliant package. T = Tape and reel. AutoShutdown is a trademark of Maxim Integrated Products, Inc. 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. EVALUATION KIT AVAILABLE2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/12-Channel 2-Wire Serial 8-Bit ADCs ABSOLUTE MAXIMUM RATINGS V to GND..............................................................-0.3V to +6V Operating Temperature Range ...........................-40C to +85C DD AIN0AIN11, REF to Junction Temperature......................................................+150C GND ......................-0.3V to the lower of (V + 0.3V) and +6V Storage Temperature Range .............................-60C to +150C DD SDA, SCL to GND.....................................................-0.3V to +6V Lead Temperature (soldering, 10s) .................................+300C Maximum Current Into Any Pin.........................................50mA Continuous Power Dissipation (T = +70C) A 8-Pin SOT23 (derate 7.1mW/C above +70C).............567mW 16-Pin QSOP (derate 8.3mW/C above +70C).........666.7mW 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 (V = 2.7V to 3.6V (MAX1037/MAX1039), V = 4.5V to 5.5V (MAX1036/MAX1038). External reference, V = 2.048V DD DD REF (MAX1037/MAX1039), V = 4.096V (MAX1036/MAX1038). External clock, f = 1.7MHz, T = T to T , unless otherwise REF SCL A MIN MAX noted. Typical values are at T = +25C.) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DC ACCURACY (Note 1) Resolution 8 Bits Relative Accuracy INL (Note 2) 1 LSB Differential Nonlinearity DNL No missing codes over temperature 1 LSB Offset Error 1.5 LSB Offset Error Temperature 3 ppm/C Coefficient Gain Error (Note 3) 1 LSB Gain Temperature Coefficient 1 ppm/C MAX1036/MAX1037 0.5 2 Total Unadjusted Error TUE LSB MAX1038A/MAX1039A 0.5 1 Channel-to-Channel Offset 0.1 LSB Matching Channel-to-Channel Gain 0.5 LSB Matching Input Common-Mode Rejection CMRR Pseudo-differential input mode 75 dB Ratio DYNAMIC PERFORMANCE (f = 25kHz, V = V , f = 188ksps, R = 100) IN(sine wave) IN REF(P-P) SAMPLE IN Signal-to-Noise Plus Distortion SINAD 49 dB Total Harmonic Distortion THD Up to the 5th harmonic -69 dB Spurious-Free Dynamic Range SFDR 69 dB Channel-to-Channel Crosstalk (Note 4) 75 dB Full-Power Bandwidth -3dB point 2.0 MHz Full-Linear Bandwidth SINAD > 49dB 200 kHz CONVERSION RATE Internal clock 6.1 Conversion Time (Note 5) t s CONV External clock 4.7 2 MAX1036MAX1039