MAX5430/MAX5431 19-2222 Rev 2 7/05 15V Digitally Programmable Precision Voltage-Dividers for PGAs General Description Features The MAX5430/MAX5431 are digitally programmable Four Noninverting PGA Gain Configurations: high-precision resistor arrays for PGAs. The MAX5430/ A = 1, 2, 4, and 8 V MAX5431 operate from a single 15V supply or dual Precision 0.025% Ratio Accuracy 15V supplies, and consume only 35A supply current. These devices are intended for programmable-gain On-Chip Matching Resistor for Op Amp Bias- amplifier (PGA) applications and consist of fixed resis- Current Compensation (MAX5431) tor-dividers. Each device has digitally controlled con- Single-Supply +12V to +15V, or Dual-Supply 12V tacts with four precision noninverting gains of 1, 2, 4, to 15V Operation and 8 with ratio accuracy of 0.025% (MAX5430A/ MAX5431A), 0.09% (MAX5430B/MAX5431B), or 0.5% Low 35A Supply Current (MAX5430C/MAX5431C). The MAX5431 includes an CMOS/TTL Logic Compatible 2-Wire Parallel on-chip matching resistor for op amp input bias-current Interface compensation. Space-Saving 8-Pin SOT23 and 10-Pin MAX The MAX5430/MAX5431 are available in space-saving Packages 8-pin SOT23 and 10-pin MAX packages, and speci- fied over the extended temperature range of (-40C to +3V Logic Compatibility +85C). Applications Ordering Information General-Purpose Programmable Noninverting TEMP PIN- GAIN PART Amplifier RANGE PACKAGE ACCURACY Programmable Instrumentation Amplifier MAX5430AEKA -40C to +85C 8 SOT23 0.025% MAX5430BEKA -40C to +85C 8 SOT23 0.09% MAX5430CEKA -40C to +85C 8 SOT23 0.5% MAX5431AEUB -40C to +85C 10 MAX 0.025% MAX5431BEUB -40C to +85C 10 MAX 0.09% MAX5431CEUB -40C to +85C 10 MAX 0.5% Pin Configurations Functional Diagram V H DD TOP VIEW MAX5430 V 1 10 D0 DD MAX5431 W MATCH H 2 9 D1 MAX5431 D0 GND 3 8 W DECODER D1 4 7 H V SS MATCH H L 5 6 MATCH L MATCH L MAX V L GND SS Pin Configurations continued at end of data sheet. MAX5431 ONLY Max is a registered 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.15V Digitally Programmable Precision Voltage-Dividers for PGAs ABSOLUTE MAXIMUM RATINGS V to GND............................................................-0.3V to +17V Operating Temperature Range ...........................-40C to +85C DD V to GND.............................................................-17V to +0.3V Storage Temperature Range .............................-60C to +150C SS D0, D1 to GND .........................................................-0.3V to +6V Junction Temperature......................................................+150C H, L, W, MATCH to GND................(V - 0.3V) to (V + 0.3V) Lead Temperature (soldering, 10s) .................................+300C SS DD Current Into Any Signal Pin...............................................50mA Continuous Power Dissipation (T = +70C) A 8-Pin SOT23 (derate 8.9mW/C above +70C)............714mW 10-Pin MAX (derate 10.3mW/C above +70C) .........825mW 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 = +15V, V = -15V, GND = 0, T = T to T . Typical values are at T = +25C, unless otherwise noted.) (Note 1) DD SS A MIN MAX A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DC PERFORMANCE MAX543 A 0.025 Divider Ratio Accuracy V = +5V, V = -5V MAX543 B 0.09 % H L (Note 2) MAX543 C 0.5 Resistance between H and L R 57 k HL (Figure 1) Capacitance at Analog Pins C 2pF ANALOG Ratio = 1 0.5 Matching Resistor k Ratio = 2, 4, 8 14 Ratio = 1 0.5 Wiper Resistance R k W Ratio = 2, 4, 8 14 W, H, L, MATCH H, MATCH L V V V V ANALOG SS DD Voltage Range DIGITAL INPUTS Input High Voltage V 2.4 V IH Input Low Voltage V 0.8 V IL Input Leakage Current D0, D1 = 5V or GND 1 A Input Capacitance C 5pF IN POWER REQUIREMENTS Negative Supply Current I 125 A SS Positive Supply Current I 35 60 A DD Positive Power-Supply Voltage V 10.8 15.75 V DD Negative Power-Supply Voltage V -15.75 0V SS DYNAMIC PERFORMANCE Switching Time t t 0.3 s D2W, H2W Note 1: All devices are 100% production tested at T = +25C. SOT23 packages are guaranteed by design from T = T to T A A MIN MAX. Note 2: Gain accuracy is measured without load at pin W. 2 MAX5430/MAX5431