LT1634

LT1634_15 LINER | Alldatasheet

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Technical content

1634ffFor more information www.linear .com/L T1634 Typical applicaTion

FeaTures

applicaTions

DescripTion

Super Accurate ±4.096V Output References n Initial Voltage Accuracy: 0.05% n Low Operating Current: 10µA n Low Drift: 10ppm/°C Max n Less Than 1Ω Dynamic Impedance n Both Commercial and Industrial Temperature Range Pa rts Are Available n Available in 1.25V, 2.5V, 4.096V and 5V in SO-8 an d TO-92 Packages n 1.25V and 2.5V Available in MSOP Package n Portable Meters n Precision Regulators n A/D and D/A Converters n Calibrators The LT®1634 is a micropower, precision, shunt voltage reference. The bandgap reference uses trimmed precision thin film resistors to achieve 0.05% initial voltage accura- cy. Improved curvature correction technique guarantees ppm/°C maximum temperature drift. Advances in design, processing and packaging techniques guarantee 10µA operation and low temperature cycling hysteresis. The LT1634 does not require an output compensation capacitor, but is stable with capacitive loads. Low dynamic impedance makes the LT1634 reference easy to use from unregulated supplies. The LT1634 reference can be used as a high performance upgrade to the LM185/LM385, LT1004 and LT1034 where lower power and guaranteed temperature drift is required. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. LT1495 –5V LT1634-4.096 IS = 200µA OUTPUT ACCURACY BETTER THAN 0.075% AT ±500µA OUTPUT LTC ®1043 –5V –5V

1634 TA01

1µF 1µF 45k VOUT 4.096V LT1495 VOUT –4.096V TEMPERATURE (°C) –40 REVERSE VOLTAGE CHANGE (mV) 1.5

1634 TA02

–1.0 –20 20 –1.5 –2.0 2.0 1.0 0.5 –0.5 40 60 80 100 IR = 10µA VOUT = 1.25V Temperature Drift

1634ff For more information www.linear .com/L T1634 absoluTe MaxiMuM raTings Current Operating mA (Note 1) DNC* DNC* DNC* GND NC*** DNC* V OUT TEST** TOP VIEW MS8 PACKAGE 8-LEAD PLASTIC MSOP TJMAX = 125°C, θJA = 250°C/W TOP VIEW S8 PACKAGE 8-LEAD PLASTIC SO DNC* DNC* DNC* GND NC*** DNC* V OUT TEST TJMAX = 125°C, θJA = 190°C/W BOTTOM VIEW TEST V OUT GND Z PACKAGE 3-LEAD PLASTIC TO-92 TJMAX = 125°C, θJA = 190°C/W orDer inForMaTion LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE L T1634BCMS8-1.25#PBF L T1634BCMS8-1.25#TRPBF L TCV 8-Lead Plastic MSOP 0°C to 70°C L T1634BCMS8-2.5#PBF L T1634BCMS8-2.5#TRPBF L TDF 8-Lead Plastic MSOP 0°C to 70°C L T1634ACS8-1.25#PBF L T1634ACS8-1.25#TRPBF 1634A1 8-Lead Plastic SO 0°C to 70°C L T1634ACS8-2.5#PBF L T1634ACS8-2.5#TRPBF 1634A2 8-Lead Plastic SO 0°C to 70°C L T1634ACS8-4.096#PBF L T1634ACS8-4.096#TRPBF 1634A4 8-Lead Plastic SO 0°C to 70°C L T1634ACS8-5#PBF L T1634ACS8-5#TRPBF 1634A5 8-Lead Plastic SO 0°C to 70°C L T1634AIS8-1.25#PBF L T1634AIS8-1.25#TRPBF 634AI1 8-Lead Plastic SO –40°C to 85°C L T1634AIS8-2.5#PBF L T1634AIS8-2.5#TRPBF 634AI2 8-Lead Plastic SO –40°C to 85°C L T1634AIS8-4.096#PBF L T1634AIS8-4.096#TRPBF 634AI4 8-Lead Plastic SO –40°C to 85°C L T1634AIS8-5#PBF L T1634AIS8-5#TRPBF 634AI5 8-Lead Plastic SO –40°C to 85°C L T1634BCS8-1.25#PBF L T1634BCS8-1.25#TRPBF 1634B1 8-Lead Plastic SO 0°C to 70°C L T1634BCS8-2.5#PBF L T1634BCS8-2.5#TRPBF 1634B2 8-Lead Plastic SO 0°C to 70°C L T1634BCS8-4.096#PBF L T1634BCS8-4.096#TRPBF 1634B4 8-Lead Plastic SO 0°C to 70°C L T1634BCS8-5#PBF L T1634BCS8-5#TRPBF 1634B5 8-Lead Plastic SO 0°C to 70°C L T1634BIS8-1.25#PBF L T1634BIS8-1.25#TRPBF 634BI1 8-Lead Plastic SO –40°C to 85°C L T1634BIS8-2.5#PBF L T1634BIS8-2.5#TRPBF 634BI2 8-Lead Plastic SO –40°C to 85°C L T1634BIS8-4.096#PBF L T1634BIS8-4.096#TRPBF 634BI4 8-Lead Plastic SO –40°C to 85°C L T1634BIS8-5#PBF L T1634BIS8-5#TRPBF 634BI5 8-Lead Plastic SO –40°C to 85°C L T1634CCZ-1.25#PBF L T1634CCZ-1.25#TRPBF 3-Lead Plastic TO-92 0°C to 70°C L T1634CCZ-2.5#PBF L T1634CCZ-2.5#TRPBF 3-Lead Plastic TO-92 0°C to 70°C L T1634CCZ-4.096#PBF L T1634CCZ-4.096#TRPBF 3-Lead Plastic TO-92 0°C to 70°C L T1634CCZ-5#PBF L T1634CCZ-5#TRPBF 3-Lead Plastic TO-92 0°C to 70°C Consult L TC Marketing for parts specified with wider operating temperature ranges. Consult L TC Marketing for information on lead based finish parts. For more information on lead free part marking, go to: http://www .linear .com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear .com/tapeandreel/ Operating Temperature Range 65°C to 150°C 00°C pin conFiguraTion *Connected internally. Do Not Connect external circuitry to these pins. The TEST pin can be left unconnected or connected to the GND pin (GND pin on Z package, Pin4 on MS8 and S8 packages) * Not connected internally.

1634ffFor more information www.linear .com/L T1634 TEMPERATURE ACCURACY (%) TEMPERATURE COEFFICIENT (ppm/°C) PACKAGE T YPE MS8 S8 Z 0°C to 70°C 0.05 10 L T1634ACS8-1.25 L T1634ACS8-2.5 L T1634ACS8-4.096 L T1634ACS8-5 –40°C to 85°C 0.05 10 L T1634AIS8-1.25 L T1634AIS8-2.5 L T1634AIS8-4.096 L T1634AIS8-5 0°C to 70°C 0.05 25 LT1634BCMS8-1.25 L T1634BCMS8-2.5 L T1634BCS8-1.25 L T1634BCS8-2.5 L T1634BCS8-4.096 L T1634BCS8-5 –40°C to 85°C 0.05 25 LT1634BIS8-1.25 L T1634BIS8-2.5 L T1634BIS8-4.096 L T1634BIS8-5 0°C to 70°C 0.20 25 LT1634CCZ-1.25 L T1634CCZ-2.5 L T1634CCZ-4.096 L T1634CCZ-5 available opTions 1.25v elecTrical characTerisTics PARAMETER CONDITIONS MIN TYP MAX UNITS Reverse Breakdown Voltage L T1634ACS8/L T1634BCMS8/L T1634BCS8/ L T1634AIS8/L T1634BIS8 (IR = 10µA) 1.24937 –0.05 1.250 1.25062 0.05 V L T1634CCZ (IR = 10µA) 1.24750 –0.20 1.250 1.25250 0.20 V LT1634ACS8 (IR = 10µA) l 1.24849 –0.12 1.250 1.25149 0.12 V LT1634AIS8 (IR = 10µA) l 1.24781 –0.175 1.250 1.25218 0.175 V LT1634BCS8/L T1634BCMS8 (IR = 10µA) l 1.24718 –0.225 1.250 1.25281 0.225 V LT1634BIS8 (IR = 10µA) l 1.24547 –0.362 1.250 1.25453 0.362 V LT1634CCZ (IR = 10µA) l 1.24531 –0.375 1.250 1.25469 0.375 V Reverse Breakdown Change with Current (Note 4) 10µA ≤ IR ≤ 2mA l 0.25 0.30 mV mV 2mA ≤ I R ≤ 20mA l mV mV Minimum Operating Current l 7 µA Temperature Coefficient (Note 8) L T1634A, I R = 10µA L T1634B/L T1634C, IR = 10µA l 4 ppm/°C ppm/°C Reverse Dynamic Impedance (Note 5) 10µA ≤ I R ≤ 2mA l 0.125 0.150 0.5 1.0 Ω Ω Low Frequency Noise (Note 6) I R = 10µA, 0.1Hz ≤ f ≤ 10Hz 10 µVP-P Hysteresis (Note 7) ∆T = –40°C to 85°C ∆T = 0°C to 70°C 160 ppm ppm The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3)

1634ff For more information www.linear .com/L T1634 2.5v elecTrical characTerisTics PARAMETER CONDITIONS MIN TYP MAX UNITS Reverse Breakdown Voltage L T1634ACS8/L T1634BCMS8/L T1634BCS8/ L T1634AIS8/L T1634BIS8 (IR = 10µA) 2.49875 –0.05 2.500 2.50125 0.05 V L T1634CCZ (IR = 10µA) 2.49500 –0.20 2.500 2.50500 0.20 V LT1634ACS8 (IR = 10µA) l 2.49700 –0.12 2.500 2.50300 0.12 V LT1634AIS8 (IR = 10µA) l 2.49562 –0.175 2.500 2.50437 0.175 V LT1634BCMS8/L T1634BCS8 (IR = 10µA) l 2.49437 –0.225 2.500 2.50562 0.225 V LT1634BIS8 (IR = 10µA) l 2.49094 –0.362 2.500 2.50906 0.362 V LT1634CCZ (IR = 10µA) l 2.49062 –0.375 2.500 2.50937 0.375 V Reverse Breakdown Change with Current (Note 4) 10µA ≤ IR ≤ 2mA l 0.30 0.40 1.5 3.0 mV mV 2mA ≤ I R ≤ 20mA l mV mV Minimum Operating Current l 8 µA Temperature Coefficient (Note 8) L T1634A, I R = 10µA L T1634B/L T1634C, IR = 10µA l l ppm/°C ppm/°C Reverse Dynamic Impedance (Note 5) 10µA ≤ I R ≤ 2mA l 0.15 0.20 0.75 1.50 Ω Ω Low Frequency Noise (Note 6) I R = 10µA, 0.1Hz ≤ f ≤ 10Hz 15 µVP-P Hysteresis (Note 7) ∆T = –40°C to 85°C ∆T = 0°C to 70°C 160 ppm ppm The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) 4.096 elecTrical characTerisTics The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) PARAMETER CONDITIONS MIN TYP MAX UNITS Reverse Breakdown Voltage L T1634ACS8/L T1634BCS8/ L T1634AIS8/L T1634BIS8 (IR = 20µA) 4.09395 –0.05 4.096 4.09805 0.05 V L T1634CCZ (IR = 20µA) 4.08780 –0.20 4.096 4.10419 0.20 V LT1634ACS8 (IR = 20µA) l 4.09108 –0.12 4.096 4.10091 0.12 V LT1634AIS8 (IR = 20µA) l 4.08883 –0.175 4.096 4.10317 0.175 V LT1634BCS8 (IR = 20µA) l 4.08678 –0.225 4.096 4.10522 0.225 V LT1634BIS8 (IR = 20µA) l 4.08115 –0.362 4.096 4.11085 0.362 V LT1634CCZ (IR = 20µA) l 4.08064 –0.375 4.096 4.11137 0.375 V Reverse Breakdown Change with Current (Note 4) 20µA ≤ IR ≤ 2mA l 0.30 0.40 1.5 3.0 mV mV 2mA ≤ I R ≤ 20mA l mV mV Minimum Operating Current l 15 µA

1634ffFor more information www.linear .com/L T1634 4.096v elecTrical characTerisTics The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) PARAMETER CONDITIONS MIN TYP MAX UNITS Temperature Coefficient (Note 8) L T1634A, I R = 20µA L T1634B/L T1634C, IR = 20µA l l ppm/°C ppm/°C Reverse Dynamic Impedance (Note 5) 20µA ≤ I R ≤ 2mA l 0.15 0.20 0.75 1.50 Ω Ω Low Frequency Noise (Note 6) I R = 20µA, 0.1Hz ≤ f ≤ 10Hz 30 µVP-P Hysteresis (Note 7) ∆T = –40°C to 85°C ∆T = 0°C to 70°C 160 ppm ppm 5v elecTrical characTerisTics PARAMETER CONDITIONS MIN TYP MAX UNITS Reverse Breakdown Voltage L T1634ACS8/L T1634BCS8/ L T1634AIS8/L T1634BIS8 (IR = 20µA) 4.99750 –0.05 5.000 5.00250 0.05 V L T1634CCZ (IR = 20µA) 4.99000 –0.20 5.000 5.01000 0.20 V LT1634ACS8 (IR = 20µA) l 4.99400 –0.12 5.000 5.00600 0.12 V LT1634AIS8 (IR = 20µA) l 4.99125 –0.175 5.000 5.00875 0.175 V LT1634BCS8 (IR = 20µA) l 4.98875 –0.225 5.000 5.01125 0.225 V LT1634BIS8 (IR = 20µA) l 498188 –0.362 5.000 5.01813 0.362 V LT1634CCZ (IR = 20µA) l 4.98126 –0.375 5.000 5.01876 0.375 V Reverse Breakdown Change with Current (Note 4) 20µA ≤ IR ≤ 2mA l 0.30 0.40 1.5 3.0 mV mV 2mA ≤ I R ≤ 20mA l mV mV Minimum Operating Current l 15 µA Temperature Coefficient (Note 8) L T1634A, I R = 20µA L T1634B/L T1634C, IR = 20µA l l ppm/°C ppm/°C Reverse Dynamic Impedance (Note 5) 20µA ≤ I R ≤ 2mA l 0.15 0.20 0.75 1.50 Ω Ω Low Frequency Noise (Note 6) I R = 20µA, 0.1Hz ≤ f ≤ 10Hz 35 µVP-P Hysteresis (Note 7) ∆T = –40°C to 85°C ∆T = 0°C to 70°C 160 ppm ppm The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: If the part is stored outside of the specific operating temperature range, the output may shift due to hysteresis. Note 3: ESD (Electrostatic Discharge) sensitive device. Use proper ESD handling precautions. Note 4: Output requires 0.1µF for operating current greater than 1mA. Note 5: This parameter is guaranteed by “reverse breakdown change with current” test. Note 6: Peak-to-peak noise is measured with a single highpass filter at 0.1Hz and 2-pole lowpass filter at 10Hz. Note 7: Hysteresis in output voltage is created by package stress that differs depending on whether the IC was previously at a higher or lower temperature. Output voltage is always measured at 25°C but the IC is cycled to 85°C or –40°C before successive measurements. Hysteresis is roughly proportional to the square of the temperature change. Hysteresis is not normally a problem for operational temperature excursions where the instrument might be stored at high or low temperature. Note 8: Temperature coefficient is calculated from the minimum and maximum output voltage measured at T MIN, Room and TMAX as follows: TC = (VOMAX – VOMIN)/(TMAX – TMIN) Incremental slope is also measured at 25°C.

1634ff For more information www.linear .com/L T1634 1.25v Typical perForMance characTerisTics Reverse Characteristics Temperature Drift Reverse Voltage Change vs Current Reverse Dynamic Impedance Dynamic Impedance vs Frequency Forward Characteristics REVERSE VOLTAGE (V) REVERSE CURRENT (µA) 1.6 1634-1.25 G01 0.4 0.8 1.2 TA = –40°C TO 85°C TEMPERATURE (°C) –40 REVERSE VOLTAGE CHANGE (mV) 1.5 1634-1.25 G02 –1.0 –20 20 –1.5 –2.0 2.0 1.0 0.5 –0.5 40 60 80 10µA 100µA 200µA 500µA 1mA REVERSE CURRENT (mA) REVERSE VOLTAGE CHANGE (mV) 0.01 1 10 100 1634-1.25 G03 0.1 TA = –40°C TO 85°C REVERSE CURRENT (mA) DYNAMIC IMPEDANCE (/uni03A9) 100 0.001 0.1 1 100 1634-1.25 G04 0.1 0.01 10 TA = 25°C f = 25Hz FREQUENCY (kHz) DYNAMIC IMPEDANCE (/uni03A9) 0.01 1 10 100 1634-1.25 G05 0.1 10000 1000 100 0.1 IR = 10µA COUT = 0µF IR = 10µA COUT = 0.022µF IR = 100µA COUT = 0.47µF IR = 100µA COUT = 0µF TA = 25°C FORWARD CURRENT (mA) 0.4 FORWARD VOLTAGE (V) 0.8 1.2 0.01 1 10 100 1634-1.25 G06 0.1 TA = 25°C 0.1Hz to 10Hz Noise TIME (SEC) NOISE VOLTAGE (µV/DIV) 1634-1.25 G07 10 20 30 50 60 70 TA = –40°C TO 85°C IR = 10µA Response Time 1634-1.25 G08 1.5V 0.5V OUT IN IR = 10µA COUT = 0 200µs/DIV Response Time 1634-1.25 G09 1.5V 0.5V OUT IN IR = 10µA COUT = 0.1µF 20ms/DIV

1634ffFor more information www.linear .com/L T1634 2.5v Typical perForMance characTerisTics Reverse Characteristics Temperature Drift Reverse Voltage Change vs Current Reverse Dynamic Impedance Dynamic Impedance vs Frequency Forward Characteristics 0.1Hz to 10Hz Noise Response Time Response Time REVERSE VOLTAGE (V) REVERSE CURRENT (µA) 0.5 1.0 1.5 2.0 1634-2.5 G01 2.5 3.0 TA = –40°C TO 85°C TEMPERATURE (°C) –40 REVERSE VOLTAGE CHANGE (mV) 1634-2.5 G02 –20 20 40 60 80 10µA 100µA 200µA 500µA 1mA REVERSE CURRENT (mA) REVERSE VOLTAGE CHANGE (mV) 0.01 1 10 100 1634-2.5 G03 0.1 TA = –40°C TO 85°C REVERSE CURRENT (mA) DYNAMIC IMPEDANCE (/uni03A9) 0.001 0.1 1 10 1635-2.5 G04 0.1 0.01 100 100 TA = 25°C f = 25Hz FREQUENCY (kHz) DYNAMIC IMPEDANCE (/uni03A9) 0.01 1 10 100 1634-2.5 G05 0.1 10000 1000 100 0.1 IR = 10µA COUT = 0µF IR = 100µA COUT = 0µF IR = 10µA COUT = 0.068µF IR = 100µA COUT = 0.47µF TA = 25°C FORWARD CURRENT (mA) 0.4 FORWARD VOLTAGE (V) 0.8 1.2 0.01 1 10 100 1634-2.5 G06 0.1 TA = 25°C TIME (SEC) NOISE VOLTAGE (µV/DIV) 80 70 1634-2.5 G07 –10 –20 10 20 30 40 50 60 –15 TA = –40°C TO 85°C IR = 10µA 1634-2.5 G08 IR = 10µA COUT = 0 200µs/DIV 1634-2.5 G09 IR = 10µA COUT = 0.1µF 20ms/DIV

1634ff For more information www.linear .com/L T1634 4.096v Typical perForMance characTerisTics Reverse Characteristics Temperature Drift Reverse Voltage Change vs Current Reverse Dynamic Impedance Dynamic Impedance vs Frequency Forward Characteristics 0.1Hz to 10Hz Noise Response Time Response Time REVERSE VOLTAGE (V) REVERSE CURRENT (µA) 1 2 3 4 1634-4 G01 TA = –40°C to 85°C TEMPERATURE (°C) –40 REVERSE VOLTAGE CHANGE (mV) 1634-4 G02 –20 0 40 60 80 20µA 100µA 200µA 500µA 1mA REVERSE CURRENT (mA) REVERSE VOLTAGE CHANGE (mV) 0.01 1 10 100 1634-4 G03 0.1 TA = –40°C TO 85°C REVERSE CURRENT (mA) DYNAMIC IMPEDANCE (/uni03A9) 0.001 0.1 1 10 1635-4 G04 0.1 0.01 100 100 TA = 25°C f = 25Hz FREQUENCY (kHz) DYNAMIC IMPEDANCE (/uni03A9) 0.01 1 10 100 1634-4 G05 0.1 10000 1000 100 0.1 IR = 20µA COUT = 0µF IR = 100µA COUT = 0µF IR = 20µA COUT = 0.033µF IR = 100µA COUT = 0.33µF TA = 25°C FORWARD CURRENT (mA) 0.4 FORWARD VOLTAGE (V) 0.8 1.2 0.01 1 10 100 1634-2.5 G06 0.1 TA = 25°C TIME (SEC) NOISE VOL TAGE (µV/DIV) 1634-4 G06 –20 –40 20 40 6010 30 50 70 –10 –30 TA = –40°C TO 85°C IR = 20µA 4V 1634-4 G07 10V IR = 20µA COUT = 0 500µs/DIV 1634-4 G08 10V IR = 20µA COUT = 0.1µF 20ms/DIV

1634ffFor more information www.linear .com/L T1634 5v Typical perForMance characTerisTics Reverse Characteristics Temperature Drift Reverse Voltage Change vs Current Reverse Dynamic Impedance Dynamic Impedance vs Frequency Forward Characteristics 0.1Hz to 10Hz Noise Response Time Response Time REVERSE VOLTAGE (V) REVERSE CURRENT (µA) 1 2 3 4 1634-5 G01 5 6 TA = –40°C TO 85°C TEMPERATURE (°C) –40 REVERSE VOLTAGE CHANGE (mV) 1634-5 G02 –20 0 40 60 80 20µA 100µA 200µA 500µA 1mA REVERSE CURRENT (mA) REVERSE VOLTAGE CHANGE (mV) 0.01 1 10 100 1634-5 G03 0.1 TA = –40°C TO 85°C REVERSE CURRENT (mA) DYNAMIC IMPEDANCE (/uni03A9) 0.001 0.1 1 10 1635-5 G04 0.1 0.01 100 100 TA = 25°C f = 25Hz FREQUENCY (kHz) DYNAMIC IMPEDANCE (/uni03A9) 0.01 1 10 100 1634-5 G05 0.1 10000 1000 100 0.1 IR = 20µA COUT = 0µF IR = 100µA COUT = 0µF TA = 25°C IR = 100µA COUT = 0.22µF IR = 20µA COUT = 0.1µF FORWARD CURRENT (mA) 0.4 FORWARD VOLTAGE (V) 0.8 1.2 0.01 1 10 100 1634-2.5 G06 0.1 TA = 25°C TIME (SEC) NOISE VOLTAGE (µV/DIV) 1634-5 G06 –20 –40 20 40 6010 30 50 70 –10 –30 TA = –40°C TO 85°C IR = 20µA 1634-5 G07 10V IR = 20µA COUT = 0 500µs/DIV 1634-5 G08 10V IR = 20µA COUT = 0.1µF 20ms/DIV

1634 F01

Figure 1. Adjustable Output Voltage Reference

1634 TA03

1634 TA04

1634ffFor more information www.linear .com/L T1634 package DescripTion Please refer to http://www.linear .com/designtools/packaging/ for the most recent package drawings. SO8 REV G 0212 .016 – .050 (0.406 – 1.270) .010 – .020 0°– 8° TYP .008 – .010 (0.203 – 0.254) .053 – .069 (1.346 – 1.752) .014 – .019 (0.355 – 0.483) TYP .004 – .010 (0.101 – 0.254) .050 (1.270) BSC 1 2 3 4 .150 – .157 (3.810 – 3.988) NOTE 3 8 7 6 5 .189 – .197 (4.801 – 5.004) NOTE 3 .228 – .244 (5.791 – 6.197) .245 MIN .160 ±.005 RECOMMENDED SOLDER PAD LAYOUT .045 ±.005 .050 BSC .030 ±.005 TYP INCHES (MILLIMETERS) NOTE: 1. DIMENSIONS IN 2. DRAWING NOT TO SCALE 3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm) 4. PIN 1 CAN BE BEVEL EDGE OR A DIMPLE 8-Lead Plastic Small Outline (Narrow .150 Inch) (Reference LTC DWG # 05-08-1610 Rev G) 8-Lead Plastic MSOP (Reference LTC DWG # 05-08-1660 Rev G) MSOP (MS8) 0213 REV G 0.53 ±0.152 (.021 ±.006) SEATING PLANE 0.18 (.007) 0.254 (.010) 1.10 (.043) MAX 0.22 – 0.38 (.009 – .015) TYP 0.1016 ±0.0508 (.004 ±.002) 0.86 (.034) REF 0.65 (.0256) BSC 0° – 6° TYP DETAIL “A” DETAIL “A” GAUGE PLANE 1 2 3 4 4.90 ±0.152 (.193 ±.006) 8 7 6 5 3.00 ±0.102 (.118 ±.004) (NOTE 3) 3.00 ±0.102 (.118 ±.004) (NOTE 4) 0.52 (.0205) REF 5.10 (.201) MIN 3.20 – 3.45 (.126 – .136) 0.889 ±0.127 (.035 ±.005) RECOMMENDED SOLDER PAD LAYOUT 0.42 ± 0.038 (.0165 ±.0015) TYP 0.65 (.0256) BSC NOTE: 1. DIMENSIONS IN MILLIMETER/(INCH) 2. DRAWING NOT TO SCALE 3. DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.152mm (.006") PER SIDE 4. DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS.INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.152mm (.006") PER SIDE 5. LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm (.004") MAX

1634ff For more information www.linear .com/L T1634 package DescripTion Please refer to http://www.linear .com/designtools/packaging/ for the most recent package drawings. .050 (1.27) BSC .060 ± .005 (1.524± 0.127) DIA .90 (2.286) NOM .180 ± .005 (4.572 ± 0.127) .180 ± .005 (4.572 ± 0.127) .500 (12.70) MIN .050 (1.270) MAX UNCONTROLLED LEAD DIMENSION .016 ± .003 (0.406 ± 0.076) NOM BULK PACK .015 ± .002 (0.381 ± 0.051) .060 ± .010 (1.524 ± 0.254) 10° NOM .140 ± .010 (3.556 ± 0.127) Z3 (TO-92) 1008 REV C 3 2 1 .098 +.016/–.04 (2.5 +0.4/–0.1)

2 PLCS

REFER TO TAPE AND REEL SECTION OF LTC DATA BOOK FOR ADDITIONAL INFORMATION Z Package 3-Lead Plastic TO-92 (Similar to TO-226) (Reference LTC DWG # 05-08-1410 Rev C)

1634ffFor more information www.linear .com/L T1634 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 representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.

revision hisTory

REV DATE DESCRIPTION PAGE NUMBER F 10/14 Web Links Added NC Pins Identified on MS8 and S8 Package Revision History Added All (Revision history begins at Rev F)

1634ff For more information www.linear .com/L T1634 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417  LINEAR TECHNOLOGY CORPORATION 1998 LT 1014 REV F • PRINTED IN USA (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear .com/L T1634 relaTeD parTs Typical applicaTions PART NUMBER DESCRIPTION COMMENTS L TC1440 Micropower Comparator with Reference 3.7µA Max Supply Current, 1% 1.182V Reference, MSOP , PDIP and SO-8 Packages L T1460 Micropower Series Reference 0.075% Max, 10ppm/°C Max Drift, 2.5V , 5V and 10V Versions, MSOP , PDIP , SO-8, SOT-23 and TO-92 Packages L T1495 1.5µA Precision Rail-to-Rail Dual Op Amp 1.5µA Max Supply Current, 100pA Max IOS L TC1540 Nanopower Comparator with Reference 600nA Max Supply Current, 2% 1.182V Reference, MSOP and SO-8 Packages RH1 10M RSW RS 51k 1.75M 0.1% T0 LOAD SW OFF V BAT 1.25M 0.1% A BATTERY RH2 10M 500k 0.1% 1.25M 0.1% D1, D2: 1N458 R1 TO R4: CAR6 SERIES IRC (512) 992-7900 LT1634-1.25 V BAT 1.75V 1.25V

1634 TA05

1/4 LT1496– 1/4 LT1496 1/4 LT1496 CHARGER LT1634 1.25V

1634 TA06

1µA R1 TO R3: MAR5 SERIES, IRC (512) 992-7900 V OUT 1.5V 24k 200k 0.1% 0.1% 249k 0.1%

2 AAA

Single Cell Li-Ion Battery Supervisory Circuit (IQ = 20µA) Micropower Voltage and Current Reference