MAX5492 19-3695 Rev 0 5/05 10k Precision-Matched Resistor-Divider in SOT23 General Description Features The MAX5492 precision resistor-divider consists of two Resistance Ratios from 1:1 to 10:1 accurately matched resistors with access to the ends Custom Ratios Available Upon Request and center of the divider. This device offers excellent resistance matching of 0.035% (A grade), 0.05% (B Tight Initial Ratio Accuracy grade), and 0.1% (C grade). The MAX5492 includes an 0.035% (MAX5492A) extremely low-resistance-ratio temperature drift of 0.05% (MAX5492B) 1.5ppm/C (typ) over -55C to +125C, and has an end- 0.1% (MAX5492C) to-end resistance of 10k . Resistance ratios from 1:1 to Low 1.5ppm/C (typ) Resistor-Ratio-Drift (1.1:1) 10:1 are available. Five standard ratios are available (see Table 1), and custom ratios are also available upon Up to 40V Operating Voltage Across Sum of R1 request. To enhance device and system robustness, the and R2 MAX5492 features 2kV Human Body Model electrostat- ic discharge (ESD) protection to ensure against real- Tiny 5-Pin SOT23 Package world ESD events. The MAX5492 is ideal for precision gain-setting applications where tight resistance matching and low temperature drift are necessary. The MAX5492 is available in a space-saving 5-pin SOT23 package, and is guaranteed over the military -55C to +125C temperature range. Ordering Information* Applications Industrial Process Control R A T IO T EMP PIN- PAR T A C C U R A C Y Instrumentation R A N G E PAC K A G E ( % ) Precision Gain Setting 0.035 M AX5 492 A - T-55 C to + 125C 5 SO T23-5 Medical Equipment 0.05 M AX5 492 B - T-55 C to + 125C 5 SO T23-5 Automatic Test Equipment 0.1 M AX5 492 C - T-55 C to + 125C 5 SO T23-5 Base Stations *See the How to Order section for more details. Block Diagram Pin Configuration TOP VIEW MAX5492 SH P1 P1 1 5 SH R 1 SL 2 MAX5492 SL P3 4 P3 P2 3 R 2 SOT23 P2 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.10k Precision-Matched Resistor-Divider in SOT23 ABSOLUTE MAXIMUM RATINGS Voltage Between P1 and P2 ................................................50V Operating Temperature Range .........................-55C to +125C Continuous Current into Any Pin......................................4.2mA Junction Temperature......................................................+150C Continuous Power Dissipation (T = +70C) Storage Temperature Range .............................-65C to +150C A 5-Pin SOT23 (derate 7.1mW/C above +70C).........571.4mW Lead Temperature (soldering, 10s) .................................+300C 5-Pin SOT23 ( ) .....................................................141C/W J-A 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. DC ELECTRICAL CHARACTERISTICS (T = -55C to +125C, unless otherwise noted. Typical values are at T = +25C.) (Note 1) A A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS MAX5492 A, T = +25C 0.035 A Initial Resistor-Ratio Error (Note 2) % MAX5492 B, T = +25C 0.05 A MAX5492 C, T = +25C 0.1 A Ratio 1.1:1 1.5 Resistance-Ratio Temperature Ratio 1.5:1 3 ppm/C Coefficient (Note 3) Ratio 3.2:1 ratio 10:1 5.5 Absolute Temperature Coefficient TCR (Note 4) 35 ppm/C of Resistance Voltage Coefficient of Resistance VCR (Note 5) 0.1 ppm/V End-to-End Resistance (R + R ) 9.25 10 10.75 k 1 2 Continuous Working Voltage V -40 +40 V P1-P2 Between P1 and P2 P1, P2, P3, SL, SH Capacitance 2pF Resistance-Ratio Stability 2000 hours at +70C 0.03 % -3dB Bandwidth f 1.1:1 ratio (Note 6) 30 MHz 3dB Thermal Noise (Note 7) 45 V RMS Current Noise (Note 8) <-30 dB Maximum Power Rating 160 mW Note 1: The MAX5492 is 100% production tested at T = +25C. Specifications over -55C to +125C are guaranteed by design A and characterization. Note 2: Testing conditions: T = +25C, V = 10V and 40V. A P1-P2 R 1 R 2 Note 3: Resistance-ratio temperature coefficient is defined and is guaranteed by design, not production tested. R 1 T R 2 RR + Note 4: Absolute TCR is defined as and is tested at 10V and 40V.() 12 RR + T () 12 R 1 Note 5: Resistance-ratio voltage coefficient is defined as and is guaranteed by design, not production tested. R 2 R 1 V R 2 2 MAX5492