MAX6220 19-1930 Rev 0 4/01 Low-Noise, Precision, +2.5V/+4.096V/+5V Voltage Reference General Description Features The MAX6220 is a low-noise, precision voltage refer- Low 20ppm/C Temperature Coefficient over ence with extremely low 20ppm/C temperature coeffi- -40C to +125C Range cient over the automotive temperature range (-40C to Very Low 1.5Vp-p Noise (0.1Hz to 10Hz) +125C) and excellent 0.1% initial accuracy. This device features buried-zener technology for low noise 0.1% Initial Accuracy performance. The load-regulation specification is guar- 15mA Output Source and Sink Current anteed for source and sink currents up to 15mA. Excellent line and load regulation and low output 8V to 40V Input Voltage Range impedance at high frequency make the MAX6220 ideal Optional Noise Reduction and Voltage Trim for high-resolution data-conversion systems up to 16 bits. The MAX6220 is set for 2.5V, 4.096V, and Excellent Transient Response 5.0V outputs. Low 20ppm/1000hr Long-Term Stability Stable for All Capacitive Loads Applications High-Accuracy Industrial and Process Control ATE Equipment Precision Current Sources Ordering Information OUPUT PIN- PART TEMP. RANGE VOLTAGE PACKAGE (V) MAX6220ASA25 -40C to +125C 8 SO 2.5 MAX6220ASA41 -40C to +125C 8 SO 4.096 MAX6220ASA50 -40C to +125C 8 SO 5.0 Pin Configuration Typical Operating Circuit TOP VIEW 8V TO 40V INPUT IN REFERENCE OUT 1 I.C. 8 I.C. OUT 2 7 I.C. IN * 2.2 F MAX6220 MAX6220 NR TRIM NR 3 6 OUT * 2.2 F GND 4 5 TRIM GND SOIC *OPTIONAL (STABLE WITH ALL CAPACITIVE LOADS) 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.Low-Noise, Precision, +2.5V/+4.096V/+5V Voltage Reference ABSOLUTE MAXIMUM RATINGS (Voltages Referenced to GND) Continuous Power Dissipation (T = +70C) A IN..............................................................................-0.3V to +42V 8-Pin SO (derate 5.9mW/C above +70C)....................471mW OUT, TRIM ...............................................................-0.3V to +12V Operating Temperature Range...........................-40C to +125C NR ..............................................................................-0.3V to +6V Storage Temperature Range ..............................-65C to +150C OUT Short-Circuit to GND Duration (V 12V)..........Continuous Lead Temperature (soldering, 10s)...................................+300C IN OUT Short-Circuit to GND Duration (V 42V) ........................5s IN OUT Short-Circuit to IN Duration (V 12V) ..............Continuous IN 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(+2.5V) (V = +10V, I = 0mA, T = T to T , unless otherwise noted. Typical values are at T = +25C.) IN OUT A MIN MAX A PARAMETER SYMBOL CONDITIONS T MIN TYP MAX UNITS A Input Voltage Range V 840V IN Output Voltage V +25C 2.497 2.500 2.503 V OUT Output Voltage Temperature TCV 220 ppm/C OUT Coefficient (Note 1) +25C 27 V / OUT Line Regulation (Note 2) 8V V 40V ppm/V IN V IN 45 +25C 16 Sourcing: 0mA I 15mA OUT 15 V / OUT Load Regulation (Note 2) ppm/mA I OUT +25C 16 Sinking: -15mA I 0mA OUT 30 +25C 1.8 2.9 Supply Current I mA IN 3.3 Trim-Adjustment Range V (Figure 1) 15 25 mV OUT Turn-On Settling Time t To 0.01% of final value 5 s ON 0.1Hz f 10Hz 1.5 Vp-p Output Noise Voltage e N (Note 3) 10Hz f 1kHz 1.3 2.8 V RMS Temperature Hysteresis (Note 4) 20 ppm Long-Term Stability V t = 1000hr 20 ppm OUT 2 MAX6220