LT1782 Micropower, Over-The-Top SOT-23, Rail-to-Rail Input and Output Op Amp FEATURES DESCRIPTION + n The LT 1782 is a 200kHz op amp available in the small Operates with Inputs Above V n SOT-23 package that operates on all single and split sup- Rail-to-Rail Input and Output n plies with a total voltage of 2.5V to 18V. The amplifier Micropower: 55A Supply Current Max n draws less than 55A of quiescent current and has reverse Operating Temperature Range: 40C to 125C n battery protection, drawing negligible current for reverse Low Profile (1mm) ThinSOT Package n supply voltages up to 18V. Low Input Offset Voltage: 800V Max n Single Supply Input Range: 0V to 18V The input range of the LT1782 includes ground, and a n High Output Current: 18mA Min unique feature of this device is its Over-The-Top opera- n Specified on 3V, 5V and 5V Supplies tion capability with either or both of its inputs above the n Output Shutdown on 6-Lead Version positive rail. The inputs handle 18V both differential and n Reverse Battery Protection to 18V common mode, independent of supply voltage. The input n High Voltage Gain: 1500V/mV stage incorporates phase reversal protection to prevent n Gain Bandwidth Product: 200kHz false outputs from occurring even when the inputs are 9V n Slew Rate: 0.07V/s below the negative supply. The LT1782 can drive loads up to 18mA and still maintain APPLICATIONS rail-to-rail capability. A shutdown feature on the 6-lead version can disable the part, making the output high n Portable Instrumentation impedance and reducing quiescent current to 5A. The n Battery- or Solar-Powered Systems LT1782 op amp is available in the 5- and 6-lead SOT-23 n Sensor Conditioning packages. For applications requiring higher speed, refer n Supply Current Sensing to the LT1783. n Battery Monitoring n L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and MUX Amplifiers ThinSOT and Over-The-Top are trademarks of Linear Technology Corporation. All other n 4mA to 20mA Transmitters trademarks are the property of their respective owners. TYPICAL APPLICATION Positive Supply Rail Current Sense Distribution of Input Offset Voltage 25 + V = 5V, 0V V S V = 2.5V 5V TO 18V CM 200 20 5V 15 0.2 + MMBT3904 LT1782 10 200 V = 2(I ) OUT LOAD 0V TO 4.3V 5 I 2k LOAD LOAD 1782 TA01a 0 900 600 300 0 300 600 900 INPUT OFFSET VOLTAGE (V) 1782 TA01b 1782fc 1 PERCENTAGE OF AMPLIFIERS+ + LT1782 (Note 1) ABSOLUTE MAXIMUM RATINGS + Total Supply Voltage (V to V ) ................................ 18V Specified Temperature Range (Note 4) Input Differential Voltage.......................................... 18V LT1782C ...............................................40C to 85C Input Pin Voltage to V ................................ + 24V/10V LT1782I ................................................40C to 85C Shutdown Pin Voltage Above V ............................. 18V LT1782H ............................................40C to 125C Shutdown Pin Current ........................................ 10mA Junction Temperature........................................... 150C Output Short-Circuit Duration (Note 2) ........... Indefinite Storage Temperature Range ................... 65C to 150C Operating Temperature Range (Note 3) Lead Temperature (Soldering, 10 sec) .................. 300C LT1782C ...............................................40C to 85C LT1782I ................................................40C to 85C LT1782H ............................................40C to 125C PIN CONFIGURATION TOP VIEW TOP VIEW + + V OUT 1 5 V OUT 1 6 2 V 2 5 SHDN V IN +IN 3 4 IN +IN 3 4 S5 PACKAGE S6 PACKAGE 5-LEAD PLASTIC TSOT-23 6-LEAD PLASTIC TSOT-23 T = 150C, = 250C/W T = 150C, = 230C/W JMAX JA JMAX JA ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE LT1782CS5 PBF LT1782CS5 TRPBF LTLD 5-Lead Plastic TSOT-23 0C to 70C LT1782IS5 PBF LT1782IS5 TRPBF LTLE 5-Lead Plastic TSOT-23 40C to 85C LT1782HS5 PBF LT1782HS5 TRPBF LTXK 5-Lead Plastic TSOT-23 40C to 125C LT1782CS6 PBF LT1782CS6 TRPBF LTIS 6-Lead Plastic TSOT-23 0C to 70C LT1782IS6 PBF LT1782IS6 TRPBF LTIT 6-Lead Plastic TSOT-23 40C to 85C LT1782HS6 PBF LT1782HS6 TRPBF LTXL 6-Lead Plastic TSOT-23 40C to 125C Consult LTC Marketing for parts specified with wider operating temperature ranges. Consult LTC Marketing for information on non-standard lead based finish parts. For more information on lead free part marking, go to: