LT1672/LT1673/LT1674 2m A Max, A 5 Single, Dual V and Quad Over-The-Top Precision Rail-to-Rail Input and Output Op Amps FEATURES DESCRIPTIO n Gain of 5 Stable The LT 1672/LT1673/LT1674 are ultralow power n (I 2m A) decompensated (A 5) op amps with preci- Low Supply Current: 2m A Max per Amplifier S V n sion specifications. The extremely low supply current is Rail-to-Rail Input and Output n combined with excellent amplifier specifications: input Low Offset Voltage: 375m V Max TM + n offset voltage is 375m V maximum with a typical drift of Over-The-Top Inputs Operate Above V only 0.4m V/ C, input offset current is 100pA maximum. A n Gain Bandwidth Product: 12kHz minimum open-loop gain (A ) of 100V/mV ensures that n VOL Wide Supply Range: 2.2V to 36V gain errors are small. The devices characteristics change n Single Supply Input Range: 0.3V to 36V little over the supply range of 2.2V to 15V. Supply n Low Input Bias Current: 250pA rejection is 90dB and the common mode rejection ratio is n Low Input Offset Current: 20pA 90dB. Operation is specified for 3V, 5V and 15V supplies. n High A : 100V/mV Minimum Driving 100kW Load VOL Reverse battery protection (18V min) and inputs that n Output Sources and Sinks 500m A Load Current operate above the positive supply make the LT1672/ n Reverse Battery Protected to 18V LT1673/LT1674 easy to use in harsh environments. U The low bias currents and offset current of the amplifier APPLICATIO S permit the use of megohm level source resistors without n Battery- or Solar-Powered Systems introducing significant errors. Voltage noise at 4m V is P-P n Portable Instrumentation remarkably low considering the low supply current. For n Remote Sensor Amplifier unity gain stable versions of these amplifiers, see the n Micropower Filter LT1494/LT1495/LT1496. n Photodiode Amplifier The LT1672 is available in the 8-pin MSOP, PDIP and SO n High Impedance Circuits packages. The LT1673 is available in plastic 8-pin PDIP and SO-8 packages with the standard dual op amp pinout. , LTC and LT are registered trademarks of Linear Technology Corporation. Over-The-Top is a trademark of Linear Technology Corporation. The LT1674 is available in 14-pin PDIP and SO packages. TYPICAL APPLICATION TC V Distribution OS Single Supply, 60m W Precision Instrumentation Amplifier 80 120 AMPLIFIERS 5V V = 2.5V 70 S 100k* 40C to 85C V + IN1 1M 60 1/2 LT1673 50 5V 110k 1M 100k 40 30 LT1672 V OUT 1M 100k 1000pF 20 + 110k 1M 10 1M A = 100 V 5V BANDWIDTH = 1kHz 0 1/2 LT1673 0.0047F LT1389-2.5 CMRR = 65dB AT 120Hz 1.5 0.9 0.3 0.3 0.9 1.5 100k* *500V TRANSIENT PROTECTION V + IN2 TC V (V/C) OS 1672/3/4 TA01 TOTAL SUPPLY CURRENT = 12A 1672/3/4 TA02 1 UNITS U ULT1672/LT1673/LT1674 ABSOLUTE AXI U RATI GS (Note 1) + Specified Temperature Range (Note 3) ... 40 C to 85 C Total Supply Voltage (V to V ) .............................. 36V Storage Temperature Range ................. 65 C to 150 C Differential Input Voltage ......................................... 36V Junction Temperature........................................... 150 C Input Current ...................................................... 10mA Lead Temperature (Soldering, 10 sec).................. 300 C Output Short-Circuit Duration .......................Continuous Operating Temperature Range (Note 2) .. 40 C to 85 C UUW PACKAGE/ORDER I FOR ATIO ORDER PART ORDER PART NUMBER TOP VIEW NUMBER TOP VIEW NC 1 8 NC LT1672CN8 LT1672CMS8 NC 1 8 NC + IN 2 7 V + LT1672IMS8 LT1672CS8 IN 2 7 V +IN 3 6 OUT +IN 3 6 OUT LT1672IN8 V 4 5 NC V 4 5 NC LT1672IS8 MS8 PACKAGE 8-LEAD PLASTIC MSOP N8 PACKAGE S8 PACKAGE MS8 PART MARKING S8 PART MARKING 8-LEAD PDIP 8-LEAD PLASTIC SO T = 150 C, q = 250 C/ W JMAX JA T = 150 C, q = 130 C/ W (N8) LTFH 1672 JMAX JA T = 150 C, q = 190 C/ W (S8) JMAX JA LTFJ 1672I ORDER PART ORDER PART TOP VIEW NUMBER NUMBER OUT A 1 14 TOP VIEW OUT D IN A 2 13 IN D + LT1673CN8 LT1674CN OUT A 1 8 V A D +IN A 3 12 +IN D LT1673CS8 LT1674CS IN A 2 7 OUT B + A V 4 11 V LT1673IN8 LT1674IN +IN A 3 IN B 6 +IN B 5 10 B +IN C LT1673IS8 LT1674IS V 4 5 +IN B B C IN B 6 9 IN C N8 PACKAGE S8 PACKAGE OUT B 7 8 OUT C S8 PART MARKING 8-LEAD PDIP 8-LEAD PLASTIC SO N PACKAGE S PACKAGE T = 150 C, q = 150 C/ W (N8) JMAX JA 1673 14-LEAD PDIP 14-LEAD PLASTIC SO T = 150 C, q = 190 C/ W (S8) JMAX JA 1673I T = 150 C, q = 110 C/ W (N) JMAX JA T = 150 C, q = 150 C/ W (S) JMAX JA Consult factory for parts specified with wider operating temperature ranges. ELECTRICAL CHARACTERISTICS T = 25 C, V = 5V, 0V V = 3V, 0V V = V = half supply, unless otherwise noted. A S S CM O SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS V Input Offset Voltage V = 5V 150 375 m V OS S V = 3V 200 475 m V S V = 5V, MS8 Package 150 475 m V S V = 3V, MS8 Package 200 575 m V S I Input Bias Current (Note 5) 250 1000 pA B V = 10V (Note 6) 180 360 nA CM I Input Offset Current (Note 5) 20 100 pA OS Input Noise Voltage 0.1Hz to 10Hz 4 m V P-P 2 U WWW