19-1930; Rev 0; 4/01 Low-Noise, Precision, +2.5V/+4.096V/+5VVoltage ReferenceMAX6220General DescriptionFeatures The MAX6220 is a low-noise, precision voltage refer- ♦ Low 20ppm/°C Temperature Coefficient over ence with extremely low 20ppm/°C temperature coeffi- -40°C to +125°C Range cient over the automotive temperature range (-40°C to +125°C) and excellent ±0.1% initial accuracy. This ♦ Very Low 1.5µVp-p Noise (0.1Hz to 10Hz) device features buried-zener technology for low noise ♦ ±0.1% Initial Accuracy performance. The load-regulation specification is guar- anteed for source and sink currents up to 15mA. ♦ ±15mA Output Source and Sink Current Excellent line and load regulation and low output ♦ 8V to 40V Input Voltage Range impedance at high frequency make the MAX6220 ideal for high-resolution data-conversion systems up to ♦ Optional Noise Reduction and Voltage Trim 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 LoadsApplications High-Accuracy Industrial and Process Control ATE Equipment Precision Current Sources Ordering InformationOUPUTPIN-PARTTEMP. RANGEVOLTAGEPACKAGE(V) MAX6220ASA25 -40°C to +125°C 8 SO 2.5 MAX6220ASA41 -40°C to +125°C 8 SO 4.096 MAX6220ASA50 -40°C to +125°C 8 SO 5.0 Typical Operating CircuitPin Configuration 8V TO 40V INPUT TOP VIEW IN REFERENCE OUT I.C. 1 8 I.C. OUT IN 2 7 I.C. 2.2 * µF MAX6220 MAX6220 NR TRIM NR 3 6 OUT 2.2 * µF GND 4 5 TRIM GND SOIC *OPTIONAL (STABLE WITH ALL CAPACITIVE LOADS) ________________________________________________________________ Maxim Integrated Products1For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.