MAX1061/MAX1063 19-2724 Rev 1 3/09 250ksps, +3V, 8-/4-Channel, 10-Bit ADCs with +2.5V Reference and Parallel Interface General Description Features The MAX1061/MAX1063 low-power, 10-bit analog-to- 10-Bit Resolution, 0.5 LSB Linearity digital converters (ADCs) feature a successive-approxi- +3V Single-Supply Operation mation ADC, automatic power-down, fast wake-up (2s), an on-chip clock, +2.5V internal reference, and a User-Adjustable Logic Level (+1.8V to +3.6V) high-speed, byte-wide parallel interface. They operate Internal +2.5V Reference with a single +3V analog supply and feature a V LOGIC pin that allows them to interface directly with a +1.8V to Software-Configurable, Analog Input Multiplexer +3.6V digital supply. 8-Channel Single Ended/ Power consumption is only 5.7mW (V = V ) at DD LOGIC 4-Channel Pseudo-Differential (MAX1061) the maximum sampling rate of 250ksps. Two software- 4-Channel Single Ended/ selectable power-down modes enable the MAX1061/ 2-Channel Pseudo-Differential (MAX1063) MAX1063 to be shut down between conversions Software-Configurable, Unipolar/Bipolar Inputs accessing the parallel interface returns them to normal operation. Powering down between conversions can Low Power cut supply current to under 10A at reduced sampling 1.9mA (250ksps) rates. 1.0mA (100ksps) Both devices offer software-configurable analog inputs 400A (10ksps) for unipolar/bipolar and single-ended/pseudo-differen- 2A (Shutdown) tial operation. In single-ended mode, the MAX1061 has eight input channels and the MAX1063 has four input Internal 3MHz Full-Power Bandwidth Track/Hold channels (four and two input channels, respectively, Byte-Wide Parallel (8 + 2) Interface when in pseudo-differential mode). Excellent dynamic performance and low power, com- Small Footprint: 28-Pin QSOP (MAX1061) bined with ease of use and small package size, make 24-Pin QSOP (MAX1063) these converters ideal for battery-powered and data- acquisition applications or for other circuits with demand- Pin Configurations ing power consumption and space requirements. The MAX1061 is available in a 28-pin QSOP package, TOP VIEW while the MAX1063 is available in a 24-pin QSOP. For HBEN 1 24 V LOGIC pin-compatible +5V, 10-bit versions, refer to the D7 2 23 V DD MAX1060/MAX1064 data sheet. D6 3 22 REF Applications D5 4 21 REFADJ Industrial Control Systems Data Logging D4 5 20 GND Energy Management Patient Monitoring MAX1063 D3 6 19 COM Data-Acquisition Systems Touch Screens D2 7 18 CH0 Ordering Information D1/D9 8 17 CH1 INL D0/D8 9 16 CH2 PART TEMP RANGE PIN-PACKAGE (LSB) INT 10 15 CH3 MAX1061ACEI+ 0C to +70C 28 QSOP 0.5 RD 11 14 CS 0C to +70C MAX1061BCEI+ 28 QSOP 1 -40C to +85C MAX1061AEEI+ 28 QSOP 0.5 WR 12 13 CLK -40C to +85C MAX1061BEEI+ 28 QSOP 1 QSOP +Denotes a lead(Pb)-free/RoHS-compliant package. Pin Configurations continued at end of data sheet. Ordering Information continued at end of data sheet. Typical Operating Circuits appear at end of data sheet. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.250ksps, +3V, 8-/4-Channel, 10-Bit ADCs with +2.5V Reference and Parallel Interface ABSOLUTE MAXIMUM RATINGS V to GND..............................................................-0.3V to +6V Continuous Power Dissipation (T = +70C) DD A V to GND.........................................................-0.3V to +6V 24-Pin QSOP (derate 9.5mW/C above +70C) ..........762mW LOGIC CH0CH7, COM to GND............................-0.3V to (V + 0.3V) 28-Pin QSOP (derate 8.0mW/C above +70C) ..........667mW DD REF, REFADJ to GND ................................-0.3V to (V + 0.3V) Operating Temperature Ranges DD Digital Inputs to GND ...............................................-0.3V to +6V MAX1061 C /MAX1063 C ..........................0C to +70C Digital Outputs (D0D9, INT) to GND.....-0.3V to (V + 0.3V) MAX1061 E /MAX1063 E .......................-40C to +85C LOGIC Storage Temperature Range .............................-65C to +150C 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 (V = V = +2.7V to +3.6V, COM = GND, REFADJ = V , V = +2.5V, 4.7F capacitor at REF pin, f = 4.8MHz (50% duty DD LOGIC DD REF CLK cycle), T = T to T , unless otherwise noted. Typical values are at T = +25C.) A MIN MAX A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DC ACCURACY (Note 1) Resolution RES 10 Bits MAX106 A 0.5 Relative Accuracy (Note 2) INL LSB MAX106 B 1 Differential Nonlinearity DNL No missing codes over temperature 1 LSB Offset Error 2 LSB Gain Error (Note 3) 2 LSB Gain Temperature Coefficient 2.0 ppm/C Channel-to-Channel Offset 0.1 LSB Matching DYNAMIC SPECIFICATIONS (f = 50kHz, V = 2.5V , 250ksps, external f = 4.8MHz, bipolar input mode) IN(sine wave) IN P-P CLK Signal-to-Noise Plus Distortion SINAD 60 dB Total Harmonic Distortion THD -72 dB (Including 5th-Order Harmonic) Spurious-Free Dynamic Range SFDR 72 dB Intermodulation Distortion IMD f = 49kHz, f = 52kHz 76 dB IN1 IN2 -78 Channel-to-Channel Crosstalk f = 125kHz, V = 2.5V (Note 4) dB IN IN P-P Full-Linear Bandwidth SINAD > 56dB 250 kHz Full-Power Bandwidth -3dB rolloff 3 MHz CONVERSION RATE External clock mode 3.3 Conversion Time (Note 5) t External acquisition/internal clock mode 2.5 3.0 3.5 s CONV Internal acquisition/internal clock mode 3.2 3.6 4.1 Track/Hold Acquisition Time t 625 ns ACQ Aperture Delay External acquisition or external clock mode 50 ns External acquisition or external clock mode <50 Aperture Jitter ps Internal acquisition/internal clock mode <200 External Clock Frequency f 0.1 4.8 MHz CLK Duty Cycle 30 70 % 2 MAX1061/MAX1063