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| PRECISION SHUNT VOLTAGE REFERENCE May 1, 2000 SC1004(A) TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com DESCRIPTION The SC1004(A) is a two terminal precision voltage reference with thermal stability guaranteed over temperature. The SC1004(A) has a typical dynamic output impedance of 0.2.= Active output circuitry provides a very sharp turn on characteristic - the minimum operating current is 20A, with a maximum of 20mA. Coming with an initial tolerance of 0.8% (0.32% for SC1004A), and with two available voltage options (1.235V and 2.5V) in a small SO-8 package, the SC1004(A) is ideally suited for very low power circuitry such as temperature sensors and portable meters. FEATURES *= Trimmed bandgap design (0.8%, 0.32% for *= Wide operating current range 20A to 20mA *= Low dynamic impedance (0.2) *= SO-8 package APPLICATIONS *= *= *= *= Micropower circuitry Portable meters Battery powered systems Temperature sensors SC1004A version) ORDERING INFORMATION BLOCK DIAGRAM VOLTAGE 1.235 V SC1004CS8-1.2.TR SC1004ACS8-1.2.TR (1) INITIAL ACCURACY 2.5 V Cathode SC1004CS8-2.5.TR - 0.8% 0.32% Notes: (1) Only available in tape and reel packaging. A reel contains 2500 devices. ABSOLUTE MAXIMUM RATINGS Anode PIN CONFIGURATION SO-8 Lead (Top View) Parameter Reverse Current Operating Temperature Range Operating Junction Temperature Range Storage Temperature Range Lead Temperature (Soldering) 10 seconds Symbol Maximum Units 20 TA TJ TSTG TLEAD -40 to +85 -40 to +150 -65 to +150 300 mA C C C C SYMBOL DIAGRAM Anode Cathode 1 (c) 2000 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320 PRECISION SHUNT VOLTAGE REFERENCE May 1, 2000 SC1004(A) ELECTRICAL CHARACTERISTICS TA = 25C unless otherwise specified. Parameter Reverse Breakdown Voltage, SC1004 Symbol VZ IZ = 100A Condition TA = 25C TA = 0 to +70C MIN -1.2 TYP MAX MIN -2.5 TYP MAX UNITS V 1.225 1.235 1.245 2.480 2.500 2.520 1.220 1.235 1.250 2.470 2.500 2.530 TA = -40 to +85C 1.215 1.235 1.255 2.460 2.500 2.535 Reverse Breakdown Voltage, SC1004A VZ IZ = 100A TA = 25C TA = 0 to +70C VZ T 1.231 1.235 1.239 1.225 1.235 1.245 N/A N/A N/A N/A N/A N/A 20 N/A N/A N/A V TA = -40 to +85C 1.220 1.235 1.245 Average Temperature Coefficient Minimum Operating Current Ratio of Change in VZ to Change in IZ IZ(min) IZ 20mA TA = -40 to +85C IZ(min) < IZ < 1mA TA = 25C TA = -40 to +85C 1mA < IZ < 20mA TA = 25C TA = -40 to +85C Reverse Dynamic Impedance ZR IZ = 100A TA = 25C TA = -40 to +85C Wideband Noise (RMS) Long Term Stability of Reverse Breakdown Voltage eN VZ IZ = 100A, 10Hz < f < 10kHz t = 1000 hours, T = 25C 0.1C, IZ = 100A 60 20 0.2 20 8 10 1.0 1.5 10 20 0.6 1.5 ppm/C 20 1.0 1.5 10 20 A mV IZ(min) VZ IZ 12 0.2 0.6 1.5 120 20 V ppm 2 (c) 2000 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320 PRECISION SHUNT VOLTAGE REFERENCE May 1, 2000 SC1004(A) OUTLINE DRAWING - SO-8 LAND PATTERN - SO-8 ECN00-1051 3 (c) 2000 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320 |
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