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