MAX1032/MAX1033 8- and 4-Channel, 3 x V REF Multirange Inputs, Serial 14-Bit ADCs General Description Features Software-Programmable Input Range for Each The MAX1032/MAX1033 multirange, low-power, 14-bit, Channel successive-approximation, analog-to-digital converters (ADCs) operate from a single +5V supply and achieve Single-Ended Input Ranges (V = 4.096V) REF throughput rates up to 115ksps. A separate digital sup- (0 to (3 x V )/2, (-3 x V )/2 to 0, REF REF ply allows digital interfacing with 2.7V to 5.25V systems 0 to 3 x V , -3 x V to 0, (3 x V )/4, REF REF REF using the SPI/QSPI-/MICROWIRE -compatible serial (3 x V )/2, 3 x V ) REF REF interface. Partial power-down mode reduces the supply Differential Input Ranges current to 1.3mA (typ). Full power-down mode reduces (3 x V )/2, 3 x V , 6 x V REF REF REF the power-supply current to 1A (typ). Eight Single-Ended or Four Differential Analog The MAX1032 provides eight (single-ended) or four Inputs (MAX1032) (true differential) analog input channels. The MAX1033 Four Single-Ended or Two Differential Analog provides four (single-ended) or two (true differential) Inputs (MAX1033) analog input channels. Each analog input channel is 16.5V Overvoltage Tolerant Inputs independently software programmable for seven sin- Internal or External Reference gle-ended input ranges 0 to (3 x V )/2, (-3 x V )/2 REF REF to 0, 0 to 3 x V , -3 x V to 0, (3 x V )/4, REF REF REF 115ksps Maximum Sample Rate (3 x V )/2 3 x V and three differential input REF , REF Single +5V Power Supply ranges (3 x V )/2 3 x V 6 x V . REF , REF, REF 20-/24-Pin TSSOP Package An on-chip +4.096V reference offers a small convenient ADC solution. The MAX1032/MAX1033 also accept an Ordering Information external reference voltage between 3.800V and 4.136V. The MAX1032 is available in a 24-pin TSSOP package PART PIN-PACKAGE CHANNELS and the MAX1033 is available in a 20-pin TSSOP pack- MAX1032BEUG+ 24 TSSOP 8 age. Each device is specified for operation from -40C MAX1033BEUP+ 20 TSSOP 4 to +85C. Note: All devices are specified over the -40C to +85C oper- Applications ating temperature range. +Denotes a lead(Pb)-free/RoHS-compliant package. Industrial Control Systems Data-Acquisition Systems Pin Configurations Avionics TOP VIEW Robotics + AVDD1 1 24 AGND1 CH0 2 23 AGND2 CH1 3 22 AVDD2 CH2 4 21 AGND3 MAX1032 CH3 5 20 REF CH4 6 19 REFCAP CH5 7 18 DVDD CH6 8 17 DVDD0 CH7 9 16 DGND CS 10 15 DGNDO DIN 11 14 DOUT SSTRB 12 13 SCLK QSPI is a trademark of Motorola, Inc. TSSOP MICROWIRE is a registered trademark of National Semiconductor Corp. Pin Configurations continued at end of data sheet. For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maximintegrated.com. 19-3573 Rev 6 7/13MAX1032/MAX1033 8- and 4-Channel, 3 x V REF Multirange Inputs, Serial 14-Bit ADCs ABSOLUTE MAXIMUM RATINGS AVDD1 to AGND1 ....................................................-0.3V to +6V REF, REFCAP to AGND1 ......................-0.3V to (V + 0.3V) AVDD1 AVDD2 to AGND2 ....................................................-0.3V to +6V Continuous Current (any pin) ...........................................50mA DVDD to DGND........................................................-0.3V to +6V Continuous Power Dissipation (T = +70C) A DVDDO to DGNDO ..................................................-0.3V to +6V 20-Pin TSSOP (derate 11mW/C above +70C) ..........879mW DVDD to DVDDO......................................................-0.3V to +6V 24-Pin TSSOP (derate 12.2mW/C above +70C) .......976mW DVDD, DVDDO to AVDD1........................................-0.3V to +6V Operating Temperature Range ...........................-40C to +85C AVDD1, DVDD, DVDDO to AVDD2 ..........................-0.3V to +6V Junction Temperature .....................................................+150C DGND, DGNDO, AGND3, AGND2 to AGND1 ......-0.3V to +0.3V Storage Temperature Range .............................-65C to +150C CS, SCLK, DIN, DOUT, SSTRB to Lead Temperature (soldering, 10s) .................................+300C DGNDO............................................-0.3V to (V + 0.3V) Soldering Temperature (reflow) .......................................+260C DVDDO CH0CH7 to AGND1.........................................-16.5V to +16.5V 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 = V = V = V = 5V, V = V = V = V = V = 0V, f = 3.5MHz (50% duty AVDD1 AVDD2 DVDD DVDD0 AGND1 DGND DGNDO AGND2 AGND3 CLK cycle), external clock mode, V = 4.096V (external reference operation), REFCAP = AVDD1, maximum single-ended bipolar input REF range (3 x V ), C = 50pF, C = 50pF, T = -40C to +85C, unless otherwise noted. Typical values are at T = +25C.) REF DOUT SSTRB A A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DC ACCURACY (Notes 1, 2) Resolution 14 Bits Integral Nonlinearity INL 0.25 1 LSB Differential Nonlinearity DNL No missing codes 1 LSB Transition Noise External or internal reference 1 LSB RMS Unipolar 0 20 Single-ended inputs Offset Error Bipolar -1.0 12 mV Differential inputs (Note 3) Bipolar -2.0 20 Channel-to-Channel Gain Unipolar or bipolar 0.025 %FSR Matching Channel-to-Channel Offset Error Unipolar or bipolar 1 mV Matching Unipolar 3 Offset Temperature Coefficient Bipolar 1 V/C Fully differential 2 Unipolar 0.5 Gain Error Bipolar 0.8 %FSR Fully differential 1 Unipolar 2 Gain Temperature Coefficient Bipolar 1.0 ppm/C Fully differential 2 DYNAMIC SPECIFICATIONS f = 5kHz, V = FSR - 0.05dB (Notes 1, 2) IN(SINE-WAVE) IN Differential inputs, 6 x V 85 REF Single-ended inputs, 3 x V 84 REF Signal-to-Noise Plus Distortion SINAD dB Single-ended inputs, (3 x V )/2 83 REF Single-ended inputs, (3 x V )/4 79 81 REF 2 Maxim Integrated