LM136-2.5 LINER | Alldatasheet

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n Reference for 5V Systems n 8-Bit A/D and D/A Reference n Digital Voltmeters n Current Loop Measurement and Control Systems n Power Supply Monitor n Guaranteed Temperature Stability n Maximum 0.6W Dynamic Impedance n Adjustable for Minimum Temperature Coefficient n Wide Operating Current Range 2.5V Reference The LM136-2.5 is a general purpose shunt regulator diode designed to operate over a wide current range while maintaining good stability with time and temperature. The third terminal allows either the temperature coefficient to be minimized or the reference voltage to be adjusted without changing the temperature coefficient. Because it operates as a shunt regulator it can be used equally well as a positive or negative reference. The LM136-2.5 is available with initial tolerances as low as 1% in either a TO-46 metal can for hermetic requirements or a low cost TO-92 plastic package. Linear’s advanced design, test and process techniques have optimized the LM136-2.5 to achieve superior perfor- mance and reliability over previous designs. For more demanding precision reference applications requiring very low initial tolerance and temperature coefficients, consult the LT1009 data sheet. A typical 2.5V reference with trim is shown below. , LTC and LT are registered trademarks of Linear Technology Corporation. 136/336 TA01a 5V TO 35V 3.6k 10k* TRIMLM336-2.5 OUTPUT * DOES NOT AFFECT TEMPERATURE COEFFICIENT REVERSE CURRENT (mA) 3.5 3.0 2.5 2.0 1.5 1.0 0.5 136/336 TA01b 24 8 1 0 REVERSE VOLTAGE CHANGE (mV) TA = 25°C 2.5V Reference Reverse Voltage Change

Consult LTC Marketing for parts specified with wider operating temperature ranges. of a device may be impaired. Figure 1. Adjusting the LM336 for

TYPICAL PERFOR A CE CHARACTERISTICSUW Reverse Characteristics Forward Characteristics Temperature Drift Dynamic Impedance Zener Noise Voltage Response Time WSCHE ATIC DIAGRA W 136/336 SD 30pF 20pF Q3 Q5 Q4 Q6 Q12 Q14 Q13 10k 30k 2k 1.1k 6.6k 500Ω 6.6k24k 24k 50k Q18 Q15 Q11Q10 Q16 Q17 ADJ REVERSE VOLTAGE (V) 0.6 REVERSE CURRENT (A) 2.2 136/336 • G01 1.0 1.4 1.8 2.6 10–1 10–2 10–3 10–4 10–5 Tj = 125°C Tj = –55°C Tj = 25°C FORWARD CURRENT (mA) 0.001 FORWARD VOLTAGE (V) 1.2 1.0 0.8 0.6 0.4 0.2 0.01 0.1 1 10 136/336 G02 Tj = 25°C TEMPERATURE (°C) –55 REVERSE VOLTAGE (V) 2.59 2.57 2.55 2.53 2.51 2.49 2.47 2.45 2.43 2.41 2.39 2.37 85 105 136/336 G03 –35 255–15 45 65 125 IR = 1mA FREQUENCY (Hz) 10 100 1k 10k 100k DYNAMIC IMPEDANCE (Ω ) 100 0.1 136/336 G04 IR = 1mA –55°C ≤ Tj ≤ 125°C FREQUENCY (Hz) NOISE (nV/ÖHz) 10k 100k 136/336 G05 100 1k 250 200 150 100 IR = 1mA Tj = 25°C TIME (µs) VOLTAGE SWING (V) 3.5 3.0 2.5 2.0 1.5 1.0 0.5 12 0 136/336 G06 OUTPUT INPUT 5.1k OUTPUT INPUT Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.

Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 l FAX: (408) 434-0507 l www.linear.com ª LINEAR TECHNOLOGY CORPORATION 1986 136336fa LT/CP 0801 1.5K REV A • PRINTED IN USA RELATED PARTS PACKAGE DESCRIPTIO U PART NUMBER DESCRIPTION COMMENTS LT1009 Precision 2.5V Shunt Reference 0.2% Max Initial Tolerance 0.016 – 0.021** (0.406 – 0.533) DIA 0.025 (0.635) MAX 0.085 – 0.105 (2.159 – 2.667) 0.500 (12.700) MIN 0.178 – 0.195 (4.521 – 4.953) 0.209 – 0.219 (5.309 – 5.537) 0.100 (2.540) TYP 45° H02/03(TO-46) 1098 0.050 (1.270) TYP 0.050 (1.270) TYP 0.028 – 0.048 (0.711 – 1.219) 0.036 – 0.046 (0.914 – 1.168) FOR 3-LEAD PACKAGE ONLY REFERENCE PLANE * LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE AND 0.045" BELOW THE REFERENCE PLANE FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS 0.016 – 0.024 (0.406 – 0.610) PIN 1 H Package 2-Lead and 3-Lead TO-46 Metal Can (Reference LTC DWG # 05-08-1340) Z Package 3-Lead Plastic TO-92 (Similar to TO-226) (Reference LTC DWG # 05-08-1410) TYPICAL APPLICATIO SU OBSOLETE PACKAGE 500Ω –5V –5V 10k 9.76k *LM336-2.5 2N3904 2N3906 OUT 136/336 TA04 1N4148 1N4148 10k *LM336Z-2.5 OP-07CH 1µF 20µF 20µF 10k 10k 100k 2.5V VIN ‡ 6V 136/336 TA05 Switchable –1.25V Bipolar Reference Low Noise 2.5V Buffered Reference 0.050 (1.27) BSC 0.060 – 0.005 (1.524– 0.127) DIA 0.90 (2.286) NOM 0.180 – 0.005 (4.572 – 0.127) 0.180 – 0.005 (4.572 – 0.127) 0.500 (12.70) MIN 0.050 (1.270) MAX UNCONTROLLED LEAD DIMENSION 0.016 – 0.003 (0.406 – 0.076) NOM 0.015 – 0.002 (0.381 – 0.051) 0.060 – 0.010 (1.524 – 0.254) 10° NOM 0.140 – 0.010 (3.556 – 0.127) Z3 (TO-92) 0401 0.098 +016/–0.04 (2.5 +0.4/–0.1)

2 PLCS

REFER TO TAPE AND REEL SECTION OF LTC DATA BOOK FOR ADDITIONAL INFORMATION 3.6V TO 40V R 62Ω LM336-2.5 LM334 136/336 TA02 Wide Supply Range, Reference Low Temperature Coefficient Power Regulator LT317A 1.2k LM336 ADJ IN OUT VOUT 1N4148 1N4148 R2* 10k 375Ω VIN ADJUST R2 FOR 3.75V ACROSS R1 * 136/336 TA03