LT1178/LT1179 17µA Max, Dual and Quad, Single Supply, Precision Op Amps U FEATURES ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ DESCRIPTIO 17µA Max Supply Current per Amplifier 70µV Max Offset Voltage 250pA Max Offset Current 5nA Max Input Bias Current 0.9µVP-P 0.1Hz to 10Hz Voltage Noise 1.5pAP-P 0.1Hz to 10Hz Current Noise 0.5µV/°C Offset Voltage Drift 85kHz Gain-Bandwidth Product 0.04V/µs Slew Rate Single Supply Operation: Input Voltage Range Includes Ground Output Swings to Ground While Sinking Current No Pull Down Resistors are Needed Output Sources and Sinks 5mA Load Current ■ ■ ■ The extremely low supply current is combined with true precision specifications: offset voltage is 30µV, offset current is 50pA. Both offset parameters have low drift with temperature. The 1.5pAp-p current noise and picoampere offset current permit the use of megaohm level source resistors without introducing serious errors. Voltage noise, at 0.9µVp-p, is remarkably low considering the low supply current. Both the LT1178 and LT1179 can be operated from a single supply (as low as one lithium cell or two NiCd batteries). The input range goes below ground. The all-NPN output stage swings to within a few millivolts of ground while sinking current—no power consuming pull down resistors are needed. U APPLICATIO S ■ The LT ®1178 is a micropower dual op amp in the standard 8-pin configuration; the LT1179 is a micropower quad op amp offered in the standard 14-pin packages. Both devices are optimized for single supply operation at 5V. Specifications are also provided at ±15V supplies. Battery or Solar Powered Systems Portable Instrumentation Remote Sensor Amplifier Satellite Circuitry Micropower Sample-and-Hold Thermocouple Amplifier Micropower Filters , LTC and LT are registered trademarks of Linear Technology Corporation. For applications where three times higher supply current is acceptable, the micropower LT1077 single, LT1078 dual and LT1079 quad are recommended. The LT1077/78/79 have significantly higher bandwidth, slew rate, lower voltage noise and better output drive capability. U TYPICAL APPLICATIO Self-Buffered, Dual Output, Micropower Reference Supply Current vs Temperature 2 – 1/2 LT1178 3 + 1 1.2365V OUTPUT 4V TO 9V 4 5 250k* 1/2 LT1178 6 0.1µF + 8 LT1004-1.2 – 7 2.470V OUTPUT 0.1µF 2M 1M* 1M* * = 0.1% FILM RESISTORS TOTAL BATTERY CURRENT = 28µA OUTPUT ACCURACY = ± 0.4% MAX TEMPERATURE COEFFICIENT = 20ppm/°C LOAD REGULATION = 25ppm/mA, IL ≤ 5mA, V + ≥ 5V LINE REGULATION = 10ppm/V LT1178/LT1179 • TA01 SUPPLY CURRENT PER AMPLIFIER (µA) 20 VS = ±15V 18 16 VS = 5V, 0V 14 VS = ±1.5V 12 10 –50 –25 25 50 0 TEMPERATURE (°C) 75 100 LT1178/LT1179 • TA02 11789fb 1 LT1178/LT1179 W W W AXI U U ABSOLUTE RATI GS (Note 1) Supply Voltage ...................................................... ±22V Differential Input Voltage ....................................... ±30V Input Voltage ............... Equal to Positive Supply Voltage Input Voltage ............5V Below Negative Supply Voltage Output Short-Circuit Duration .......................... Indefinite Operating Temperature Range LT1178I/LT1179I .................................. –40°C to 85°C LT1178C/LT1178S/LT1179C/LT1179S .......0°C to 70°C Storage Temperature Range ................ –65°C to 150°C Lead Temperature (Soldering, 10 sec.)................. 300°C U U W PACKAGE/ORDER I FOR ATIO ORDER PART NUMBER TOP VIEW V+ OUT A OUT B 8 7 1 A –IN A 2 IN A – 3 LT1178ACH LT1178CH B + + –IN B – 5 + IN B V – (CASE) 4 8 V+ OUT A 1 –IN A 2 A +IN A 3 + – V 4 7 OUT B B+ 6 –IN B 5 +IN B N PACKAGE 8-LEAD PDIP TJMAX = 100°C, θJA = 150°C/W H PACKAGE 8-LEAD TO-5 METAL CAN ORDER PART NUMBER TOP VIEW J PACKAGE 8-LEAD CERDIP OBSOLETE PACKAGE LT1178ACN8 LT1178CN8 LT1178IN8 LT1178ACJ8 LT1178CJ8 ORDER PART NUMBER TOP VIEW +IN A 1 V– 2 +IN B 3 – IN B 4 +A + B - 8 – IN A 7 6 OUT A V+ 5 OUT B LT1178S8 PART MARKING S8 PACKAGE 8-LEAD PLASTIC SO TJMAX = 150°C, θJA = 200°C/W 1178 Consider the N8 or S8 Package for Alternate Source TOP VIEW OUT A 1 –IN A 2 A +IN A 3 + V+ 4 +IN B 5 + B –IN B 6 OUT B 7 14 OUT D 13 –IN D D+ 12 +IN D 11 V – + 10 +IN C C9 –IN C ORDER PART NUMBER Not Recommended. Use LT1178S8 for New Designs. LT1179ACN LT1179CN LT1179IN 8 OUT C N PACKAGE 14-LEAD PDIP TJMAX = 110°C, θJA = 130°C/W J PACKAGE 14-LEAD CERAMIC DIP OBSOLETE PACKAGE LT1179ACJ LT1179CJ TOP VIEW NC 1 16 NC NC 2 15 NC OUT A 3 14 V + –IN A 4 +IN A 5 V– 6 LT1178 13 OUT B ORDER PART NUMBER LT1178SW LT1179SW TOP VIEW OUT A 1 16 OUT D –IN A 2 15 –IN D +IN A 3 V+ 4 14 +IN D LT1179 13 V – 12 –IN B +IN B 5 12 +IN C 11 +IN B –IN B 6 11 –IN C OUT B 7 10 OUT C NC 7 10 NC NC 8 9 NC 8 NC 9 NC SW PACKAGE 16-LEAD PLASTIC SO WIDE TJMAX = 150°C, θJA = 90°C/W SW PACKAGE 16-LEAD PLASTIC SO WIDE TJMAX = 150°C, θJA = 90°C/W Consider the N14 Package for Alternate Source LT11778/1179 • POI01 Consult LTC Marketing for parts specified with wider operating temperature ranges. Please note that the LT1178S8 surface mount pinout differs from that of the LT1178 standard plastic or ceramic dual-in-line packages. For similiar performance with standard pinout, see the LT2178. ELECTRICAL CHARACTERISTICS VS = 5V, 0V; VCM = 0.1V, VO = 1.4V, TA = 25°C, unless noted. LT1178AC/LT1179AC MIN TYP MAX LT1178I/C/S/LT1179I/C/S MIN TYP MAX 30 35 40 40 80 90 60 SYMBOL PARAMETER CONDITIONS (NOTE 2) VOS Input Offset Voltage LT1178 LT1179 LT1178SW LT1179SW LT1178S8 ∆VOS ∆Time Long Term Input Offset Voltage Stability 0.5 IOS Input Offset Current 0.05 70 100 120 150 450 600 180 0.6 0.25 0.05 UNITS µV µV µV µV µV µV/Mo 0.35 nA 11789fb 2 LT1178/LT1179 ELECTRICAL CHARACTERISTICS LT1178AC/LT1179AC MIN TYP MAX LT1178I/C/S/LT1179I/C/S MIN TYP MAX 3 5 3 0.1Hz to 10Hz (Note 3) 0.9 2.0 0.9 µVP-P Input Noise Voltage Density fO = 10Hz (Note 3) fO = 1000Hz (Note 3) 50 49 75 65 50 49 nV/√Hz nV/√Hz Input Noise Current 0.1Hz to 10Hz (Note 3) 1.5 2.5 1.5 pAp-p Input Noise Current Density fO = 10Hz (Note 3) fO = 1000Hz 0.03 0.01 0.07 0.03 0.01 pA/√Hz pA/√Hz Input Resistance Differential Mode Common Mode (Note 4) SYMBOL PARAMETER IB Input Bias Current en Input Noise Voltage in VS = 5V, 0V; VCM = 0.1V, VO = 1.4V, TA = 25°C, unless noted. CONDITIONS (NOTE 2) 6 UNITS nA 0.8 2.0 12 0.6 2.0 12 GΩ GΩ Input Voltage Range 3.5 0 3.9 –0.3 3.5 0 3.9 –0.3 V V CMRR Common Mode Rejection Ratio VCM = 0V to 3.5V 93 103 90 102 dB PSRR Power Supply Rejection Ratio VS = 2.2V to 12V 94 104 92 104 dB AVOL Large Signal Voltage Gain VO = 0.03V to 4V, No Load (Note 4) VO = 0.03V to 3.5V, RL = 50k 140 700 110 700 V/mV 80 200 70 200 V/mV Output Low, No Load Output Low, 2k to GND Output Low, ISINK = 100µA Output High, No Load Output High 2k to GND 4.2 3.5 6.5 0.2 120 4.4 3.8 4.2 3.5 6.5 0.2 120 4.4 3.8 0.013 0.025 0.013 0.025 V/µs 60 kHz Maximum Output Voltage Swing SR Slew Rate AV = 1, CL = 10pF (Note 4) GBW Gain Bandwidth Product fO ≤ 5kHz 60 IS Supply Current per Amplifier VS = ±1.5V, VO = 0V 13 12 Channel Separation ∆VIN = 3V, RL = 10k 130 Minimum Supply Voltage (Note 5) 2.0 9 0.6 160 18 17 14 13 9 0.6 160 21 20 130 2.2 2.0 mV mV mV V V µA µA dB 2.2 V 11789fb 3 LT1178/LT1179 ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the full operating temperature range of –40°C ≤ TA ≤ 85°C for I grades, 0°C ≤ TA ≤ 70°C for SW grades, VS = 5V, 0V; VCM = 0.1V, VO = 1.4V, unless noted. (Note 7) LT1178I/LT1179I MIN TYP MAX LT1178SW/LT1179SW MIN TYP MAX ● ● 80 80 315 345 120 130 650 800 µV µV ● 0.6 3.0 0.8 4.5 µV/°C Input Offset Current ● 0.07 0.7 0.06 0.50 nA IB Input Bias Current ● 4 8 3 7 nA CMRR Common Mode Rejection Ratio VCM = 0.05V to 3.2V I grade VCM = 0V to 3.4V S grade ● 84 98 86 100 dB PSRR Power Supply Rejection Ratio VS = 3.0V to 12V I grade VS = 2.5V to 12V S grade ● 86 100 88 102 dB AVOL Large-Signal Voltage Gain VO = 0.05V to 4V, No Load (Note 4) ● ● VO = 0.05V to 3.5V, RL = 50k 55 35 350 130 80 45 500 160 V/mV V/mV Maximum Output Voltage Swing Output Low, No Load Output Low, ISINK = 100µA Output High, No Load Output High, 2k to GND 13 220 4.1 3.3 8 140 4.3 3.8 11 190 3.9 3.0 9 160 4.2 3.7 mV mV V V 15 27 15 24 µA SYMBOL PARAMETER CONDITIONS VOS lnput Offset Voltage LT1178 LT1179 ∆VOS/∆T Input Offset Voltage Drift (Note 6) IOS IS Supply Current per Amplifier ● ● ● ● ● UNITS The ● denotes specifications which apply over the full operating temperature range of 0°C ≤ TA ≤ 70°C, VS = 5V, 0V, VCM = 0.1V, VO = 1.4V, unless noted. SYMBOL PARAMETER CONDITIONS VOS lnput Offset Voltage LT1178 LT1178S8 LT1179 (Note 6) LT1178S8 LT1178AC/LT1179AC MIN TYP MAX LT1178C/S8/LT1179C MIN TYP MAX ● ● ● 50 170 60 200 65 85 70 250 350 290 µV µV µV ● ● 0.5 2.2 0.6 0.6 3.0 3.5 µV/°C µV/°C UNITS ∆VOS/∆T Input Offset Voltage Drift IOS Input Offset Current ● 0.06 0.35 0.06 0.50 nA IB Input Bias Current ● 3 6 3 7 nA CMRR Common Mode Rejection Ratio VCM = 0V to 3.4V ● 90 101 86 100 dB PSRR Power Supply Rejection Ratio VS = 2.5V to 12V ● 90 102 88 102 dB AVOL Large-Signal Voltage Gain VO = 0.05V to 4V, No Load (Note 4) VO = 0.05V to 3.5V, RL = 50k ● ● 105 55 500 160 80 45 500 160 V/mV V/mV Maximum Output Voltage Swing Output Low, No Load Output Low, ISINK = 100µA Output High, No Load Output High, 2k to GND ● ● ● ● 11 190 4.1 3.3 8 140 4.3 3.8 11 190 4.1 3.3 8 140 4.3 3.8 mV mV V V 14 21 15 24 µA IS Supply Current per Amplifier ● 11789fb 4 LT1178/LT1179 ELECTRICAL CHARACTERISTICS VS = ±15V, TA = 25°C, unless noted. SYMBOL PARAMETER VOS Input Offset Voltage CONDITIONS LT1178AC/LT1179AC MIN TYP MAX LT1178I/C/S/LT1179I/C/S MIN TYP MAX 80 350 100 150 160 120 480 900 1050 350 LT1178SW LT1179SW LT1178S8 UNITS µV µV µV µV IOS lnput Offset Current 0.05 0.25 0.05 0.35 nA IB Input Bias Current 3 5 3 6 nA Input Voltage Range 13.5 –15.0 13.9 –15.3 13.5 –15.0 13.9 –15.3 V V CMRR Common Mode Rejection Ratio VCM = 13.5V, –15V 97 106 94 106 dB PSRR Power Supply Rejection Ratio VS = 5V, 0V to ±18V 96 112 94 112 dB AVOL Large-Signal Voltage Gain VO = ±10V, RL = 50k VO = ±10V, No Load 300 600 1200 2500 250 400 1000 2500 V/mV V/mV VOUT Maximum Output Voltage Swing RL = 50k RL = 2k ±13.0 ±11.0 ±14.2 ±12.7 ±13.0 ±11.0 ±14.2 ±12.7 V V SR Slew Rate AV = 1 0.02 0.04 0.02 0.04 V/µs GBW Gain Bandwidth Product fO ≤ 5kHz 85 kHz IS Supply Current per Amplifier 85 16 21 17 25 µA The ● denotes specifications which apply over the full operating temperature range of –40°C ≤ TA ≤ 85°C for I grades, 0°C ≤ TA ≤ 70°C for SW grades, VS = ±15V, unless noted. LT1178I/LT1179I MIN TYP MAX LT1178SW/LT1179SW MIN TYP MAX 130 130 740 740 190 200 ● 0.7 4.0 0.9 5.5 µV/°C ● 0.07 0.7 0.06 0.35 nA ● 4 8 3 7 nA SYMBOL PARAMETER CONDITIONS VOS lnput Offset Voltage LT1178 LT1179 ● ● ∆VOS/∆T Input Offset Voltage Drift (Note 6) IOS Input Offset Current IB Input Bias Current AVOL Large-Signal Voltage Gain VO = ±10V, RL = 50k ● 100 500 150 750 V/mV CMRR Common Mode Rejection Ratio VCM = 13V, –14.9V ● 88 103 91 104 dB Power Supply Rejection Ratio VS = 5V, 0V to ±18V ● 88 109 91 110 dB Maximum Output Voltage Swing RL = 5k ● ±11.0 ±13.5 ±11.0 ±13.5 V PSRR IS Supply Current per Amplifier ● 19 30 18 1150 1300 28 UNITS µV µV µA 11789fb 5 LT1178/LT1179 ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the full operating tempera- ture range of 0°C ≤ TA ≤ 70°C, VS = ±15V, unless noted. SYMBOL PARAMETER VOS lnput Offset Voltage CONDITIONS LT1178AC/LT1179AC MIN TYP MAX LT1178C/S8/LT1179C MIN TYP MAX UNITS ● ● 100 480 LT1178S8 130 150 660 540 µV µV (Note 6) LT1178S8 ● ● 0.6 2.8 0.7 0.7 4.0 3.8 µV/°C µV/°C ● 0.06 0.35 0.06 0.35 nA 3 6 3 7 ∆VOS/∆T Input Offset Voltage Drift IOS Input Offset Current IB Input Bias Current AVOL Large-Signal Voltage Gain VO = ±10V, RL = 50k ● 200 800 150 750 V/mV CMRR Common Mode Rejection Ratio VCM = 13V, –15V ● 94 104 91 104 dB Power Supply Rejection Ratio VS = 5V, 0V to ±18V ● 93 110 91 110 dB Maximum Output Voltage Swing RL = 5k ● ±11.0 ±13.6 ±11.0 ±13.6 V PSRR IS ● Supply Current per Amplifier 17 ● Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: Typical parameters are defined as the 60% yield of parameter distributions of individual amplifiers; (i.e., out of 100 LT1179s, or 100 LT1178s, typically 240 op amps, or 120, will be better than the indicated specification). Note 3: This parameter is tested on a sample basis only. All noise parameters are tested with VS = ±2.5, VO = 0V. 24 18 nA 28 µA Note 4: This parameter is guaranteed by design and is not tested. Note 5: Power supply rejection ratio is measured at the minimum supply voltage. The op amps actually work at 1.7V supply but with a typical offset skew of –300µV. Note 6: This parameter is not 100% tested. Note 7: During testing at –40°C, the 5V power supply turn on-time is less than 0.5 seconds. U W TYPICAL PERFOR A CE CHARACTERISTICS Input Offset Voltage Distribution Surface Mount Package 1500 980 LT1178N8 190 LT1178J8 190 LT1178H8 702 LT1179N 144 LT1179J 6104 OP AMPS TESTED VS = 5V, 0V TA = 25°C 1000 500 0 –150 –100 800 NUMBER OF OP AMPS NUMBER OF OP AMPS 2000 –50 0 50 OFFSET VOLTAGE (µV) 100 150 LT1178/LT1179 • TPC01 Minimum Supply Voltage 100 VS = 5V, 0V TA = 25°C 600 262 LT1178SW 342 LT1179SW 1892 OP AMPS TESTED 400 200 0 – 600 – 400 OFFSET VOLTAGE SHIFT (µV) Input Offset Voltage Distribution N, J, H Package V – = 0V 0 85°C –100 25°C – 40°C –200 –300 NON-FUNCTIONAL – 400 –500 – 200 0 200 OFFSET VOLTAGE (µV) 400 600 LT1178/LT1179 • TPC02 0 2 3 1 POSITIVE SUPPLY VOLTAGE (V) LT1178/LT1179 • TPC03 11789fb 6 LT1178/LT1179 U W TYPICAL PERFOR A CE CHARACTERISTICS 1000 VS = 5V, 0V SATURATION VOLTAGE (mV) 75 IOS 50 25 INPUT BIAS CURRENT (nA) –2.5 IB –3.0 VS = 5V, 0V ISINK = 1mA ISINK = 100µA 100 ISINK = 1µA 10 NO LOAD 10k TO GROUND 1 –3.5 2k TO GROUND – 4.0 –50 –25 50 25 0 TEMPERATURE (°C) 75 0.1 –50 100 –25 50 25 0 TEMPERATURE (°C) CHANNEL B 10 12 0 20 80 40 60 TIME (SECONDS) LT1178/LT1179 • TPC07 TA = 25°C 40 VS = 5V, 0V VOLTAGE GAIN (dB) VS = ±15V 1/f CORNER 0.5Hz 30 120 140 10 PHASE 5V, 0V GAIN 5V, 0V – 10 10k 1 10 100 FREQUENCY (Hz) 1k Voltage Gain vs Load Resistance PHASE ±15V 160 180 200 GAIN ±15V LT1178/LT1179 • TPC10 VOLTAGE NOISE 10M TA = 25°C NO LOAD 100 20 0 1 10 100 1k 10k 100k 1M FREQUENCY (Hz) 100 LT1178/LT1179 • TPC09 80 0 –20 0.001 0.01 0.1 CURRENT NOISE 10 0.1 120 VS = ±15V, TA = 25°C PHASE SHIFT (DEGREES) 80 300 Gain, Phase vs Frequency 30 120 100 100 VS = ± 2.5V TA = 25°C LT1178/LT1179 • TPC08 Voltage Gain vs Frequency 20 VS = ±15V Noise Spectrum CHANNEL A CHANNEL B 60 – 20 2 0 1 TIME FROM OUTPUT SHORT TO GROUND (MINUTES) VOLTAGE NOISE DENSITY (nV/√Hz) CURRENT NOISE DENSITY (fA/√Hz) NOISE VOLTAGE (0.4µV/DIV) NOISE VOLTAGE (0.4µV/DIV) CHANNEL A 8 4 6 TIME (SECONDS) VS = ±2.5V – 10 1000 VS = ±2.5V, TA = 25°C 140 0 0.01Hz to 10Hz Noise VS = ±2.5V, TA = 25°C 2 VS = ±2.5V LT1178/LT1179 • TPC06 0.1Hz to 10Hz Noise 0 VS = ±15V 10 – 30 100 75 VS = 5V, 0V LT1178/LT1179 • TPC05 LT1178/LT1179 • TPC04 VOLTAGE GAIN (dB) Short-Circuit Current 20 VOLTAGE GAIN (V/V) INPUT OFFSET CURRENT (pA) 100 Output Saturation vs Temperature vs Sink Current SHORT-CIRCUIT CURRENT (mA) SINKING SOURCING Input Bias and Offset Currents vs Temperature 1M 100k VS = 5V, 0V, TA = 25°C VS = 5V, 0V, TA = 85°C 220 100k FREQUENCY (Hz) 240 1M LT1178/LT1179 • TPC11 10k 10k 100k 1M LOAD RESISTANCE TO GROUND (Ω) 10M LT1178/LT1179 • TPC12 11789fb 7 LT1178/LT1179 U W TYPICAL PERFOR A CE CHARACTERISTICS Large-Signal Transient Response VS = ±15V Capacitive Load Handling Large-Signal Transient Response VS = 5V, 0V 120 VS = 5V, 0V AV = 1 80 1V/DIV OVERSHOOT (%) 100 60 40 20 AV = 5 AV = 1 CL = 12pF AV = 10 500µs/DIV AV = 1 100µs/DIV CL = 12pF INPUT PULSE = 0V TO 3.8V 0 10 100 1000 CAPACITIVE LOAD (pF) 10,000 LT1178/LT1179 • TPC13 AV = 1 CL = 12pF 20µs/DIV AV = 1 CL = 12pF Common Mode Rejection Ratio vs Frequency –100mV AV = 1 20µs/DIV CL = 12pF INPUT 50 TO 150mV 20µs/DIV Power Supply Rejection Ratio vs Frequency Closed Loop Output Impedance 100 VS = ±15V 80 VS = 5V, 0V 60 40 20 10k 100 80 1 10 100 1k FREQUENCY (Hz) 10k 100k LT1178/LT1179 • TPC19 POSITIVE SUPPLY 60 NEGATIVE SUPPLY 40 20 0 0 OUTPUT IMPEDANCE (Ω) TA = 25°C POWER SUPPLY REJECTION RATIO (dB) 120 120 COMMON MODE REJECTION RATIO (dB) Small-Signal Transient Response VS = 5V, 0V 20mV/DIV Small-Signal Transient Response VS = ±15V 20mV/DIV 20mV/DIV Small-Signal Transient Response VS = ±2.5V VS = ±2.5V + 1Vp-p SINE WAVE TA = 25°C 0.1 1 10 100 1k FREQUENCY (Hz) 1k ACL = 100 100 ACL = 10 10 VS = 5V, 0V IL = 0 TA = 25°C 1 10k 100k LT1188/LT1189 • TPC20 ACL = 1 10 100 10k 1k FREQUENCY (Hz) 100k LT1178/1179 • TPC21 11789fb 8 LT1178/LT1179 U W U U APPLICATIO S I FOR ATIO Please see the LT1078/LT1079 data sheet for applications information. All comments relating to specifications, single supply operation and phase reversal protection are directly applicable to the LT1178/LT1179. Micropower 100Hz to 1MHz V-to-F Converter 7V TO 10V 1.5M VIN 0V TO 5V 100k 220k* 50k 1MHz TRIM 1N4148 100Hz TRIM 240k TYPICAL + 100Ω + NC A2 1/2 LT1178 + 1µF 10k LT1004– 2.5 – 1µF 12k + 47k A1 1/2 LT1178 – Q7 2N3904 Q8 2N3906 VDD 0.01µF 2k CD4024 CLK 74C14 0.33µF RESET Q7 VSS 10M 3pF FOUT 2µF LTC201 500pF POLYSTYRENE S1 V+ IN1 S3 D1 D3 D2 D4 S2 S4 LINEARITY IS 0.02% QUIESCENT CURRENT IS 90µA SUPPLY CURRENT IS 360µA AT 1MHz DRIFT ≈ 50ppm/°C *TRW MTR/5 + 120ppm/°C IN3 IN4 0.022µF V– IN2 GND LT1178/LT1179 • AI01 W W SI PLIFIED SCHE ATIC 10k 10k 1/2 LT1178 1/4 LT1179 2.2k 5.6k 1.3k V+ 33k 6.4k Q54 1 Q6 Q16 Q14 Q15 Q32 Q24 Q37 Q29 C1 50pF Q4 Q46 1 C4 4pF 4 + IN Q27 Q40 Q35 2.9k Q41 V+ Q26 30Ω OUT Q21 600Ω 3k C5 2.5pF 1 Q1 V– Q25 Q12 Q11 Q30 3 8.6k 600Ω Q52 Q47 Q3 – IN 12.5k Q53 2 1 Q5 11.5k Q44 150k Q31 Q28 Q2 Q18 V+ Q22 C3 40pF J1 Q36 Q33 Q48 Q19 Q50 Q39 Q9 C2 175pF 6.2k Q8 6.2k Q49 Q23 Q10 Q17 Q7 Q42 9.1k V+ Q45 Q20 2A 10k Q34 Q38 3k 30Ω Q51 Q55 700k Q43 A 2A 5.35k 700k V– 11789fb 9 LT1178/LT1179 U PACKAGE DESCRIPTIO H Package 8-Lead TO-5 Metal Can (.230 Inch PCD) (Reference LTC DWG # 05-08-1321) .016 – .021** (0.406 – 0.533) .027 – .045 (0.686 – 1.143) .335 – .370 (8.509 – 9.398) DIA .305 – .335 (7.747 – 8.509) .040 (1.016) MAX 45°TYP .050 (1.270) MAX SEATING PLANE PIN 1 .028 – .034 (0.711 – 0.864) .230 (5.842) TYP .165 – .185 (4.191 – 4.699) GAUGE PLANE .010 – .045* (0.254 – 1.143) REFERENCE PLANE .500 – .750 (12.700 – 19.050) .110 – .160 (2.794 – 4.064) INSULATING STANDOFF *LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE AND THE SEATING PLANE .016 – .024 **FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS (0.406 – 0.610) H8 (TO-5) 0.230 PCD 0801 J8 Package 8-Lead CERDIP (Narrow .300 Inch, Hermetic) (Reference LTC DWG # 05-08-1110) .300 BSC (7.62 BSC) .008 – .018 (0.203 – 0.457) .200 (5.080) MAX CORNER LEADS OPTION (4 PLCS) 0° – 15° .015 – .060 (0.381 – 1.524) .023 – .045 (0.584 – 1.143) HALF LEAD OPTION .045 – .068 (1.143 – 1.650) FULL LEAD OPTION NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE OR TIN PLATE LEADS .405 (10.287) MAX .005 (0.127) MIN 8 .014 – .026 (0.360 – 0.660) 5 .025 (0.635) RAD TYP .220 – .310 (5.588 – 7.874) 1 .045 – .065 (1.143 – 1.651) 6 7 2 3 4 .125 3.175 MIN .100 (2.54) BSC J8 0801 J Package 14-Lead CERDIP (Narrow .300 Inch, Hermetic) (Reference LTC DWG # 05-08-1110) .200 (5.080) MAX .300 BSC (7.62 BSC) .015 – .060 (0.381 – 1.524) .008 – .018 (0.203 – 0.457) NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE OR TIN PLATE LEADS .005 (0.127) MIN .785 (19.939) MAX 14 13 12 11 10 9 8 0° – 15° .045 – .065 (1.143 – 1.651) .014 – .026 (0.360 – 0.660) .100 (2.54) BSC .025 (0.635) .125 RAD TYP (3.175) MIN .220 – .310 (5.588 – 7.874) 1 2 3 4 5 6 7 J14 0801 OBSOLETE PACKAGES 11789fb 10 LT1178/LT1179 U PACKAGE DESCRIPTIO N8 Package 8-Lead PDIP (Narrow .300 Inch) (Reference LTC DWG # 05-08-1510) .400* (10.160) MAX 8 7 6 5 1 2 3 4 .255 ± .015* (6.477 ± 0.381) .300 – .325 (7.620 – 8.255) .065 (1.651) TYP .008 – .015 (0.203 – 0.381) +.035 .325 –.015 ( 8.255 +0.889 –0.381 .130 ± .005 (3.302 ± 0.127) .045 – .065 (1.143 – 1.651) .120 (3.048) .020 MIN (0.508) MIN .018 ± .003 (0.457 ± 0.076) .100 (2.54) BSC ) N8 1002 NOTE: 1. DIMENSIONS ARE INCHES MILLIMETERS *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm) N Package 14-Lead PDIP (Narrow .300 Inch) (Reference LTC DWG # 05-08-1510) .770* (19.558) MAX 14 13 12 11 10 9 8 1 2 3 4 5 6 7 .255 ± .015* (6.477 ± 0.381) .300 – .325 (7.620 – 8.255) .045 – .065 (1.143 – 1.651) .130 ± .005 (3.302 ± 0.127) .020 (0.508) MIN .065 (1.651) TYP .008 – .015 (0.203 – 0.381) +.035 .325 –.015 ( 8.255 +0.889 –0.381 NOTE: 1. DIMENSIONS ARE ) .120 (3.048) MIN .005 (0.125) .100 MIN (2.54) BSC .018 ± .003 (0.457 ± 0.076) INCHES MILLIMETERS *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm) N14 1002 11789fb 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 representation that the interconnection of its circuits as described herein will not infringe on existing patent rights. 11 LT1178/LT1179 U PACKAGE DESCRIPTIO S8 Package 8-Lead Plastic Small Outline (Narrow .150 Inch) (Reference LTC DWG # 05-08-1610) .189 – .197 (4.801 – 5.004) NOTE 3 .045 ±.005 .050 BSC 7 8 5 6 N N .245 MIN .160 ±.005 1 .030 ±.005 TYP .150 – .157 (3.810 – 3.988) NOTE 3 .228 – .244 (5.791 – 6.197) 2 3 N/2 N/2 RECOMMENDED SOLDER PAD LAYOUT 1 .010 – .020 × 45° (0.254 – 0.508) 3 2 4 .053 – .069 (1.346 – 1.752) .008 – .010 (0.203 – 0.254) .004 – .010 (0.101 – 0.254) 0°– 8° TYP .016 – .050 (0.406 – 1.270) .050 (1.270) BSC .014 – .019 (0.355 – 0.483) TYP INCHES (MILLIMETERS) 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) NOTE: 1. DIMENSIONS IN SO8 0502 SW Package 16-Lead Plastic Small Outline (Wide .300 Inch) (Reference LTC DWG # 05-08-1620) .050 BSC .045 ±.005 .030 ±.005 TYP .398 – .413 (10.109 – 10.490) NOTE 4 16 N 15 14 13 12 11 10 9 N .325 ±.005 .420 MIN .394 – .419 (10.007 – 10.643) NOTE 3 1 2 3 N/2 N/2 RECOMMENDED SOLDER PAD LAYOUT 1 .005 (0.127) RAD MIN .009 – .013 (0.229 – 0.330) .291 – .299 (7.391 – 7.595) NOTE 4 .010 – .029 × 45° (0.254 – 0.737) 2 3 4 5 6 .093 – .104 (2.362 – 2.642) 7 8 .037 – .045 (0.940 – 1.143) 0° – 8° TYP .050 (1.270) BSC NOTE 3 .016 – .050 (0.406 – 1.270) NOTE: 1. DIMENSIONS IN .004 – .012 (0.102 – 0.305) .014 – .019 (0.356 – 0.482) TYP INCHES (MILLIMETERS) 2. DRAWING NOT TO SCALE 3. PIN 1 IDENT, NOTCH ON TOP AND CAVITIES ON THE BOTTOM OF PACKAGES ARE THE MANUFACTURING OPTIONS. THE PART MAY BE SUPPLIED WITH OR WITHOUT ANY OF THE OPTIONS 4. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm) S16 (WIDE) 0502 11789fb 12 Linear Technology Corporation LW/TP 1102 1K REV B • PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com LINEAR TECHNOLOGY CORPORATION 1991