LT6555 WWWUABSOLUTE AXI URATI GS (Note 1) Total Supply Voltage (V+ to V–) .. 12.6V Junction Temperature Input Current (Note 2) .. ±10mA SSOP .. 150°C Output Current (Continuous) ... ±70mA QFN .. 125°C EN to DGND Voltage (Note 2) ... 5.5V Storage Temperature Range SEL to DGND Voltage (Note 2) .. 8V SSOP ... –65°C to 150°C Output Short-Circuit Duration (Note 3) .. Indefinite QFN ... –65°C to 125°C Operating Temperature Range (Note 4) ... –40°C to 85°C Lead Temperature (Soldering, 10 sec) Specified Temperature Range (Note 5) .. –40°C to 85°C SSOP .. 300°C UWUPACKAGE/ORDER I FOR ATIO TOP VIEW ORDER PART TOP VIEW ORDER PART NUMBER IN1A 1 24 V+ NUMBER + IN2A DGND IN1A V EN SEL A/B DGND 2 23 EN LT6555CGN 24 23 22 21 20 19 LT6555CUF IN2A 3 22 SEL A/B LT6555IGN V 1 18 REF V+ LT6555IUF V 4 21 REF V+ IN3A 2 17 OUT1 IN3A 5 G = +2 20 OUT1 AGND1 3 16 V– 25 AGND1 6 19 V– V– 4 15 OUT2 IN1B 7 G = +2 18 OUT2 IN1B 5 14 V+ AGND2 8 17 V+ AGND2 6 13 OUT3 UF PART* IN2B 9 G = +2 16 OUT3 7 8 9 10 11 12 MARKING AGND3 10 15 V– + + – V V V IN2B IN3B IN3B 11 14 V+ 6555 AGND3 V– 12 13 V+ UF PACKAGE 24-LEAD (4mm × 4mm) PLASTIC QFN GN PACKAGE TJMAX = 125°C, θJA = 37°C/W, θJC = 2.6°C/W 24-LEAD PLASTIC SSOP EXPOSED PAD (PIN 25) IS V– T MUST BE SOLDERED TO PCB JMAX = 150°C, θJA = 90°C/W Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operatingtemperature range, otherwise specifications are at TA = 25 ° C. VS = ± 5V, RL = 150 Ω , CL = 1.5pF, VEN = 0.4V, VAGND, VDGND, VVREF = 0V.SYMBOLPARAMETERCONDITIONSMINTYPMAXUNITS VOS Input Referred Offset Voltage VIN = 0V, VOS = VOUT/2 5 ±16 mV ● ±24 mV IIN Input Current ● –17 ±45 µA RIN Input Resistance VIN = ±1V ● 100 400 kΩ CIN Input Capacitance f = 100kHz 1 pF PSRR Power Supply Rejection Ratio VS = ±2.25V to ±6V (Note 6) ● 56 62 dB IPSRR Input Current Power Supply Rejection VS = ±2.25V to ±6V (Note 6) ● 1 ±4 µA/V AV ERR Gain Error VOUT = ±2V, Nominal Gain 2V/V ● ±2.5 % AV MATCH Gain Matching Any One Channel to Another ±0.33 % VOUT Output Voltage Swing (Note 7) ±3.15 ±3.4 V ● ±3.0 V 6555f 2