LT1077 Micropower, Single Supply, Precision Op Amp FEATURES DESCRIPTIO The LT 1077 is a micropower precision operational 60A Max Supply Current amplifier optimized for single supply operation at 5V. In 40V Max Offset Voltage addition, 15V specifications are provided. 350pA Max Offset Current 0.5V 0.1Hz to 10Hz Voltage Noise Micropower performance of competing devices is P-P achieved at the expense of seriously degrading precision, 2.5pA 0.1Hz to 10Hz Current Noise P-P noise, speed, and output drive specifications. The LT1077 O.4V/C Offset Voltage Drift reduces supply current without sacrificing other 250kHz Gain-Bandwidth Product parameters. The offset voltage achieved is the lowest 0.12V/s Slew Rate of any micropower op amp. Offset current, voltage Single Supply Operation and current noise, slew rate and gain-bandwidth product Input Voltage Range Includes Ground are all two to ten times better than on previous micropower Output Swings to Ground while Sinking Current op amps. No Pull-Down Resistors are Needed The 1/f corner of the voltage noise spectrum is at 0.7Hz. Output Sources and Sinks 5mA Load Current This results in low frequency (0.1Hz to 10Hz) noise performance which can only be found on devices with an U order of magnitude higher supply current. APPLICATIO S The LT1077 is completely plug-in compatible (including Replaces OP-07, OP-77, AD707, LT1001, LT1O12 nulling) with all industry standard precision op amps. at 10 to 60 Times Lower Power Thus, it can replace these precision op amps in many applications without sacrificing performance, yet with Battery or Solar Powered Systems significant power savings. 4mA to 2OmA Current Loops Two Terminal Current Source The LT1077 can be operated from one lithium cell or two Megaohm Source Resistance Difference Amplifier Ni-Cad batteries. The input range goes below ground. The all-NPN output stage swings to ground while sinking , LTC and LT are registered trademarks of Linear Technology Corporation. currentno pull-down resistors are needed. For dual and quad op amps with similar specifications please see the LT1078/LT1079 datasheet. Distribution of Input Offset Voltage TYPICAL APPLICATIO 35 V = 5V, 0V S Self Buffered Micropower Reference T = 25C A 30 3.6V TO 9V 1072 UNITS 25 TESTED IN 7 2 H, J8, N8 OUTPUT PACKAGES 20 6 1.230V LT1077 1.2% MAX 3 15 + 4 SUPPLY CURRENT = 60A MAX 10 SOURCES UP TO 10mA 750k LT1034 LOAD REGULATION = 30V/mA 0.1F TEMPERATURE DRIFT = 12ppm/C 1.2V 5 LT1077 TA01 0 20 10 0 30 40 40 30 10 20 LT1077 TA02 INPUT OFFSET VOLTAGE (V) 1077fa 1 PERCENT OF UNITS U ULT1077 ABSOLUTE AXI U RATI GS (Note 1) Operating Temperature Range Supply Voltage ...................................................... 22V LT1077AM/LT1077M (OBSOLETE).... 55C to 125C Differential Input Voltage ....................................... 30V LT1077AI/LT1077I.............................. 40C to 85C Input Voltage ............... Equal to Positive Supply Voltage LT1077AC/LT1077C/LT1077S8 ............... 0C to 70C Input Voltage ............5V Below Negative Supply Voltage Storage Temperature Range ................. 65C to 150C Output Short-Circuit Duration .......................... Indefinite Lead Temperature (Soldering, 10 sec).................. 300C UUW PACKAGE/ORDER I FOR ATIO TOP VIEW V TRIM OS TOP VIEW TOP VIEW 8 + 7 V V TRIM 1 OS V TRIM 1 8 V TRIM OS OS V TRIM 1 8 V TRIM OS OS A B + + IN 2 V IN 2 6 OUT 7 IN 2 7 V + +IN 3 6 OUT +IN OUT 3 6 3 5 +IN NC 4 V 4 5 NC V 4 5 NC V H PACKAGE J8 PACKAGE N8 PACKAGE S8 PACKAGE 8-LEAD TO-5 METAL CAN 8-LEAD CERDIP 8-LEAD PDIP 8-LEAD PLASTIC SO T = 150C, = 150C/W, = 45C/W T = 150C, = 100C/W JMAX JA JC T = 100C, = 130C/W T = 150C, = 190C/W JMAX JA JMAX JA JMAX JA ORDER PART NUMBER ORDER PART NUMBER ORDER PART NUMBER S8 PART MARKING LT1077AMH LT1077AMJ8 LT1077S8 1077 LT1077MH LT1077MJ8 LT1077IS8 1077I LT1077ACH LT1077ACJ8 LT1077AIN8 LT1077CH LT1077CJ8 LT1077IN8 LT1077ACN8 OBSOLETE PACKAGE Consider the N8 or S8 Package for Alternate Source LT1077CN8 LT1077 POI01 Consult LTC Marketing for parts specified with wider operating temperature ranges. ELECTRICAL CHARACTERISTICS V = 5V, 0V, V = 0.1V, V = 1.4V, T = 25C unless noted. S CM O A LT1077AM/AI/AC LT1077M/I/C/S8 SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS V Input Offset Voltage 9 40 10 60 V OS LT1077S8 12 150 V V Long Term Input Offset 0.4 0.4 V/Mo OS Time Voltage Stability I Input Offset Current 0.06 0.35 0.06 0.45 nA OS I Input Bias Current 7 9 7 11 nA B e Input Noise Voltage 0.1Hz to 10Hz (Note3) 0.5 1.1 0.5 V n P-P Input Noise Voltage Density f = 10Hz (Note 3) 28 43 28 nV/Hz O f = 1000Hz (Note3) 27 35 27 nV/Hz O i Input Noise Current 0.1Hz to 10Hz (Note3) 2.5 4.5 2.5 pA n P-P 1077fa 2 + U WWW