LT1460ACS8-10

LT1460-10 LINER | Alldatasheet

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n High Accuracy: 0.075% Max n Low Drift: 10ppm/°C Max n Industrial Temperature Range SO-8 Package n Low Supply Current: 270µA Max n Minimum Output Current: 20mA n No Output Capacitor Required n Reverse Battery Protection n Minimum Input/Output Differential: 0.9V n Available in Small MSOP Package The LT 1460-10 is a micropower bandgap reference that combines very high accuracy and low drift with low power dissipation and small package size. This series reference uses curvature compensation to obtain a low temperature coefficient and trimmed precision thin-film resistors to achieve high output accuracy. The reference will supply up to 20mA, making it ideal for precision regulator applications, yet it is almost totally immune to input voltage variations. This series reference provides supply current and power dissipation advantages over shunt references that must idle the entire load current to operate. Additionally, the LT1460-10 does not require an output capacitor, but it is stable with capacitive loads. This feature is important in critical applica- tions where PC board space is a premium or fast settling is demanded. Reverse battery protection keeps the reference from conducting current and being damaged. The LT1460-10 is available in the 8-lead MSOP, SO, PDIP and the 3-lead TO-92 packages. It is also available in the SOT-23 package; see separate data sheet LT1460S3-10 (SOT-23). APPLICATIONSU n Handheld Instruments n Precision Regulators n A/D and D/A Converters n Power Supplies n Hard Disk Drives Typical Distribution of Output Voltage , LTC and LT are registered trademarks of Linear Technology Corporation. TYPICAL APPLICATIONU OUTPUT VOLTAGE ERROR (%) –0.10 UNITS (%) – 0.06 – 0.02 0 1460-10 TA02 0.060.02 0.10

1400 PARTS

FROM 2 RUNSBasic Connection LT1460-10 GND IN OUT 1460-10 TA01 0.1µF 10V10.9V TO 20V

ABSOLUTE MAXIMUM RATINGSW WW U Output Short-Circuit Duration, T Specified Temperature Range Storage Temperature Range (Note 1) ... –65 °C to 150°C Available Options TEMPERATURE PACKAGE TYPE ACCURACY COEFFICIENT TEMPERATURE (%) (ppm/ °C) N8 S8 MS8 Z 0°C to 70°C 0.075 10 LT1460ACN8-10 LT1460ACS8-10 –40 °C to 85°C 0.10 10 LT1460BIN8-10 LT1460BIS8-10 0°C to 70°C 0.10 15 LT1460CCMS8-10 0°C to 70°C 0.10 20 LT1460DCN8-10 LT1460DCS8-10 –40 °C to 85°C 0.125 20 LT1460EIN8-10 LT1460EIS8-10 0°C to 70°C 0.15 25 LT1460FCMS8-10 0°C to 70°C 0.25 25 LT1460GCZ-10 –40 °C to 85°C 0.25 25 LT1460GIZ-10 PACKAGE/ORDER INFORMATIONW UU NC* V IN NC* GND NC* NC* V OUT NC* TOP VIEW MS8 PACKAGE 8-LEAD PLASTIC MSOP *CONNECTED INTERNALLY. DO NOT CONNECT EXTERNAL CIRCUITRY TO THESE PINS MS8 PART MARKING ORDER PART NUMBERORDER PART NUMBERORDER PART NUMBER S8 PART MARKING 1460A1 460BI1 LTAH LTAJ 1460D1 460EI1 TJMAX = 150°C, θJA = 250°C/ W TOP VIEW NC* VIN NC* GND NC* NC* V OUT NC* N8 PACKAGE 8-LEAD PDIP S8 PACKAGE 8-LEAD PLASTIC SO * CONNECTED INTERNALLY. DO NOT CONNECT EXTERNAL CIRCUITRY TO THESE PINS TJMAX = 150°C, θJA = 130°C/ W (N8) TJMAX = 150°C, θJA = 190°C/ W (S8) 123 BOTTOM VIEW VIN VOUT GND Z PACKAGE 3-LEAD TO-92 PLASTIC TJMAX = 150°C, θJA = 160°C/ W LT1460CCMS8-10 LT1460FCMS8-10 LT1460ACS8-10 LT1460BIS8-10 LT1460DCS8-10 LT1460EIS8-10 LT1460ACN8-10 LT1460BIN8-10 LT1460DCN8-10 LT1460EIN8-10 LT1460GCZ-10 LT1460GIZ-10 Consult factory for Military grade parts.

PARAMETER CONDITIONS MIN TYP MAX UNITS Output Voltage (Note 2) LT1460ACN8, ACS8 9.9925 10.000 10.0075 V –0.075 0.075 % LT1460BIN8, BIS8, CCMS8, DCN8, DCS8 9.990 10.000 10.010 V –0.10 0.10 % LT1460EIN8, EIS8 9.9875 10.000 10.0125 V –0.125 0.125 % LT1460FCMS8 9.985 10.000 10.015 V –0.15 0.15 % LT1460GCZ, GIZ 9.975 10.000 10.025 V –0.25 0.25 % Output Voltage Temperature Coefficient (Note 3) T MIN ≤ TJ ≤ TMAX LT1460ACN8, ACS8, BIN8, BIS8 l 5 10 ppm/ °C LT1460CCMS8 l 7 15 ppm/ °C LT1460DCN8, DCS8, EIN8, EIS8 l 10 20 ppm/ °C LT1460FCMS8, GCZ, GIZ l 12 25 ppm/ °C Line Regulation 10.9V ≤ VIN ≤ 12.5V 30 60 ppm/V l 80 ppm/V 12.5V ≤ VIN ≤ 20V 10 25 ppm/V l 35 ppm/V Load Regulation Sourcing (Note 4) I OUT = 100µA 1500 2800 ppm/mA l 3500 ppm/mA IOUT = 10mA 80 135 ppm/mA l 180 ppm/mA IOUT = 20mA 70 100 ppm/mA 0°C to 70°C l 140 ppm/mA Thermal Regulation (Note 5) ΔP = 200mW 0.5 2.5 ppm/mW Dropout Voltage (Note 6) V IN – VOUT, ΔVOUT ≤ 0.1%, IOUT = 0 l 0.9 V VIN – VOUT, ΔVOUT ≤ 0.1%, IOUT = 10mA 1.3 V l 1.4 V Output Current Short V OUT to GND 40 mA Reverse Leakage V IN = –15V l 0.5 10 µA Supply Current 190 270 µA l 360 µA Output Voltage Noise (Note 7) 0.1Hz ≤ f ≤ 10Hz 40 µVP-P 10Hz ≤ f ≤ 1kHz 35 µVRMS Long-Term Stability of Output Voltage, S8 Pkg (Note 8) 40 ppm/ √kHr Hysteresis (Note 9) ΔT = –40 °C to 85°C 160 ppm ΔT = 0°C to 70°C 25 ppm The l denotes specifications which apply over the specified temperature range. Note 1: If the part is stored outside of the specified temperature range, the output may shift due to hysteresis. Note 2: ESD (Electrostatic Discharge) sensitive device. Extensive use of ESD protection devices are used internal to the LT1460-10, however, high electrostatic discharge can damage or degrade the device. Use proper ESD handling precautions. Note 3: Temperature coefficient is measured by dividing the change in output voltage by the specified temperature range. Incremental slope is also measured at 25°C. Note 4: Load regulation is measured on a pulse basis from no load to the specified load current. Output changes due to die temperature change must be taken into account separately. Note 5: Thermal regulation is caused by die temperature gradients created by load current or input voltage changes. This effect must be added to normal line or load regulation. This parameter is not 100% tested. ELECTRICAL CHARACTERISTICSVIN = 12.5V, IOUT = 0, TA = 25°C unless otherwise specified.

ELECTRICAL CHARACTERISTICS

Note 6: Excludes load regulation errors. Note 7: Peak-to-peak noise is measured with a single highpass filter at 0.1Hz and a 2-pole lowpass filter at 10Hz. The unit is enclosed in a still-air environment to eliminate thermocouple effects on the leads. The test time is 10 sec. RMS noise is measured with a single highpass filter at 10Hz and a 2-pole lowpass filter at 1kHz. The resulting output is full wave rectified and then integrated for a fixed period, making the final reading an average as opposed to RMS. A correction factor of 1.1 is used to convert from average to RMS and a second correction of 0.88 is used to correct for the nonideal bandpass of the filters. Note 8: Long-term stability typically has a logarithmic characteristic and therefore, changes after 1000 hours tend to be much smaller than before that time. Total drift in the second thousand hours is normally less than one third that of the first thousand hours with a continuing trend toward reduced drift with time. Significant improvement in long-term drift can be realized by preconditioning the IC with a 100 hour to 200 hour, 125°C burn-in. Long-term stability will also be affected by differential stresses between the IC and the board material created during board assembly. See PC Board Layout in the Applications Information section. Note 9: 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. TYPICAL PERFORMANCE CHARACTERISTICS UW OUTPUT CURRENT (mA) OUTPUT VOLTAGE CHANGE (mV) 100 1460-10 G03 1 2 3 5 –55 °C 125°C 25°C Load Regulation, Sinking Line Regulation TEMPERATURE (°C) –50

9.982 OUTPUT VOLTAGE (V)

9.986 9.990 9.994 9.998 10.006 –25 02 5 5 0 1460-10 G04 75 100 10.002

3 TYPICAL PARTS

Output Voltage Temperature Drift INPUT/OUTPUT VOLTAGE (V)

0.1 OUTPUT CURRENT (mA)

–55 °C125°C 25°C Minimum Input/Output Voltage Differential INPUT VOLTAGE (V)

9.980 OUTPUT VOLTAGE (V)

9.984 9.988 9.992 9.996 10.004 10 14 18 1460-10 G06 8 12 16 20 10.000 –55 °C 125°C 25°C Supply Current vs Input Voltage INPUT VOLTAGE (V) SUPPLY CURRENT (µA) 240 320 400 1460-10 G05 160 200 280 360 120 4 8 1221 8 6 10 14 20 –55 °C 125°C 25°C OUTPUT CURRENT (mA) 0.1 OUTPUT VOLTAGE CHANGE (mV) 1 10 100 1460-10 G02 –55 °C 25°C125°C Load Regulation, Sourcing

TYPICAL PERFORMANCE CHARACTERISTICS UW Power Supply Rejection Ratio vs Frequency Transient Responses 0.1 200µs/DIV LOAD CAPACITANCE (µF) IOUT = 10mA 1460-10 G09 Output Impedance vs Frequency FREQUENCY (kHz) OUTPUT IMPEDANCE (Ω ) 100 1000 0.01 1 10 100 0.1 0.1 1000 1460-10 G08 CL = 0µF CL = 1µF CL = 0.1µF Output Voltage Noise Spectrum FREQUENCY (kHz) 0.01 0.1 11 00.1 100 1460-10 G10 NOISE VOLTAGE (µV/√Hz) Output Noise 0.1Hz to 10Hz TIME (SEC) OUTPUT NOISE (50µV/DIV) 1460-10 G11 2 4 6 10 12 14 APPLICATIONS INFORMATIONWU UU Precision Regulator The LT1460-10 is ideal as a precision regulator, and since it operates in series mode it does not require a current setting resistor. The reference can supply up to 20mA of load current with good transient response. Load regula- tion at 20mA output is typically 70ppm/mA meaning the output changes only 14mV. Capacitive Loads The LT1460-10 is designed to be stable with capacitive loads. With no capacitive load, the reference is ideal for fast settling or applications where PC board space is a premium. The test circuit shown in Figure 1 is used to measure the response time for various load currents and load capacitors. The 1V step from 10V to 9V produces a INPUT FREQUENCY (kHz) POWER SUPPLY REJECTION RATIO (dB) 100 0.1 10 100 1000 1460-10 G07

(LTC DWG # 05-08-1660) 8-Lead PDIP (Narrow 0.300) (LTC DWG # 05-08-1510) Dimensions in inches (millimeters) unless otherwise noted.PACKAGE DESCRIPTIONU N8 0695 0.005 (0.127) MIN 0.100 – 0.010 (2.540 – 0.254) 0.065 (1.651) TYP 0.045 – 0.065 (1.143 – 1.651) 0.130 – 0.005 (3.302 – 0.127) 0.015 (0.380) MIN 0.018 – 0.003 (0.457 – 0.076) 0.125 (3.175) MIN 0.009 – 0.015 (0.229 – 0.381) 0.300 – 0.325 (7.620 – 8.255) 0.325 +0.025 –0.015 +0.635 –0.3818.255() 12 3 4 87 6 5 0.255 – 0.015* (6.477 – 0.381) 0.400* (10.160) MAX *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm) MSOP08 0595 * DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE ** DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS. INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE 0.021 – 0.004 (0.53 – 0.01) 0° – 6° TYP0.007 (0.18) 0.040 – 0.006 (1.02 – 0.15) 0.012 (0.30) 0.006 – 0.004 (0.15 – 0.10) 0.025 (0.65) TYP 12 3 4 0.192 – 0.004 (4.88 – 0.10) 8 7 6 5 0.118 – 0.004* (3.00 – 0.10) 0.118 – 0.004** (3.00 – 0.10)

Dimensions in inches (millimeters) unless otherwise noted.PACKAGE DESCRIPTIONU 8-Lead Plastic Small Outline (Narrow 0.150) (LTC DWG # 05-08-1610) Z Package 3-Lead Plastic TO-92 (Similar to TO-226) (LTC DWG # 05-08-1410) 0.016 – 0.050 0.406 – 1.270 0.010 – 0.020 0°– 8° TYP 0.008 – 0.010 (0.203 – 0.254) SO8 0695 0.053 – 0.069 (1.346 – 1.752) 0.014 – 0.019 (0.355 – 0.483) 0.004 – 0.010 (0.101 – 0.254) 0.050 (1.270) BSC 1 2 3 4 0.150 – 0.157** (3.810 – 3.988) 8 7 6 5 0.189 – 0.197* (4.801 – 5.004) 0.228 – 0.244 (5.791 – 6.197) DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE 0.050 – 0.005 (1.270 – 0.127) 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) 0695 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.

146010f LT/TP 1097 4K • PRINTED IN USA  LINEAR TECHNOLOGY CORPORATION 1 997 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 l (408) 432-1900 FAX: (408) 434-0507 l TELEX: 499-3977 l www.linear-tech.com Boosted Output Current with No Current Limit Boosted Output Current with Current Limit V+ ≥ (VOUT + 1.8V) LT1460-10 OUT GND IN 1460-10 TA03 2N2905 10V 100mA 47µF 2µF SOLID TANT 220Ω TYPICAL APPLICATIONSU 1460-10 TA04 2N2905 10V 100mA 2µF SOLID TANT D1* LED V+ ≥ VOUT + 2.8V 8.2ΩR1 220Ω GLOWS IN CURRENT LIMIT, DO NOT OMIT 47µF LT1460-10 OUT GND IN RELATED PARTS PART NUMBER DESCRIPTION COMMENTS LT1019 Precision Bandgap Reference 0.05% Max, 5ppm/ °C Max LT1236 Precision Low Noise Reference 0.05% Max, 5ppm/ °C Max, SO Package LT1634 Micropower Precision Shunt Reference 0.05%, Max, 25ppm/ °C Max Handling Higher Load Currents 1460-10 TA05 RL 40mA 12.5V R1* 63Ω VOUT 10V TYPICAL LOAD CURRENT = 50mA SELECT R1 TO DELIVER 80% OF TYPICAL LOAD CURRENT. LT1460 WILL THEN SOURCE AS NECESSARY TO MAINTAIN PROPER OUTPUT. DO NOT REMOVE LOAD AS OUTPUT WILL BE DRIVEN UNREGULATED HIGH. LINE REGULATION IS DEGRADED IN THIS APPLICATION 10mA 47µF LT1460-10 OUT GND IN