LTC1380/LTC1393 Single-Ended 8-Channel/ Differential 4-Channel Analog Multiplexer with SMBus Interface FEATURES DESCRIPTION n Micropower Operation: Supply Current = 20A Max The LTC 1380/LTC1393 are CMOS analog multiplexers with n 2-Wire SMBus Interface SMBus compatible digital interfaces. The LTC1380 is a n Single 2.7V to 5V Supply Operation single-ended 8-channel multiplexer, while the LTC1393 is a n Expandable to 32 Single or 16 Differential Channels differential 4-channel multiplexer. The SMBus digital inter- n Guaranteed Break-Before-Make face requires only two wires (SCL and SDA). Both the n Low R : 35 Single Ended/70 Differential LTC1380 and the LTC1393 have four hard-wired SMBus ON n Low Charge Injection: 20pC Max addresses, selectable with two external address pins. This n Low Leakage: 5nA Max allows four devices, each with a unique SMBus address, to n Available in 16-Lead SO and GN Packages coexist on one system and for four devices to be synchro- nized with one stop bit. U The supply current is typically 10A. Both digital interface APPLICATIONS pins are SMBus compatible over the full operating supply n Data Acquisition Systems voltage range. The LTC1380 analog switches feature a n Process Control typical R of 35 (5V supplies), typical switch leakage of ON n Laptop Computers 20pA and guaranteed break-before-make operation. Charge n Signal Multiplexing/Demultiplexing injection is 1pC typical. n Analog-to-Digital Conversion Systems The LTC1380/LTC1393 are available in 16-lead SO and GN packages. Operation is fully specified over the commercial and industrial temperature ranges. , LTC and LT are registered trademarks of Linear Technology Corporation. SMBus is a registered trademark of Intel Corporation. TYPICAL APPLICATION On Resistance vs V LTC1380 Single-Ended 8-Channel Multiplexer S 5V 250 T = 25C A 225 I = 1mA D SMBus 1 16 200 0.1F 15k 15k S0 V HOST CC V = 2.7V CC 2 15 175 V = 0V EE S1 SCL SCL 3 14 150 S2 SDA SDA 4 13 125 S3 A0 8 ANALOG LTC1380 5 12 100 V = 5V INPUTS CC S4 A1 V = 0V EE 6 11 75 V = 5V S5 GND 0.1F CC V = 5V 7 10 EE 50 S6 V 5V EE 8 9 25 S7 D ANALOG OUTPUT 1380/93 TA01 O 0 5 4 3 2 1 0 1 2 3 4 5 V (V) S 1167 G15 1 ON RESISTANCE () U ULTC1380/LTC1393 ABSOLUTE MAXIMUM RATINGS (Note 1) Maximum Switch-On Current .............................. 65mA Total Supply Voltage Power Dissipation ............................................. 500mW LTC1380 (V to V ) ......................................... 15V CC EE LTC1393 (V to GND) ....................................... 15V Operating Ambient Temperature Range CC LTC1380C/LTC1393C ....................... 0C T 70C Analog Input Voltage A LTC1380I/LTC1393I .................... 40C T 85C LTC1380 ............................. V 0.3V to V + 0.3V A EE CC LTC1393 ................................... 0.3V to V + 0.3V Junction Temperature........................................... 125C CC Storage Temperature Range ................. 65C to 150C Digital Inputs .............................................0.3V to 15V Lead Temperature (Soldering, 10 sec).................. 300C LTC1380 (V TO V ) .... (V 0.3V) to (V + 15V) CC EE EE EE LTC1393 (V to GND) ..........................0.3V to 15V CC PACKAGE/ORDER INFORMATION TOP VIEW ORDER PART ORDER PART TOP VIEW NUMBER NUMBER + S0 1 16 V 16 S0 1 V CC CC S1 2 15 SCL S0 2 15 SCL LTC1380CGN LTC1393CGN + S2 3 14 SDA S1 3 14 SDA LTC1380CS LTC1393CS S3 4 13 A0 S1 4 13 A0 LTC1380IGN LTC1393IGN + S4 5 12 A1 S2 5 12 A1 LTC1380IS LTC1393IS S5 6 11 GND S2 6 11 GND + S6 7 10 V S3 7 10 D EE O + S7 8 9 D S3 8 9 D O O GN PACKAGE S PACKAGE GN PACKAGE S PACKAGE 16-LEAD PLASTIC SSOP 16-LEAD PLASTIC SO 16-LEAD PLASTIC SSOP 16-LEAD PLASTIC SO T = 125C, = 130C/ W (GN) T = 125C, = 130C/ W (GN) JMAX JA JMAX JA T = 125C, = 100C/ W (S) T = 125C, = 100C/ W (S) JMAX JA JMAX JA Consult factory for Military grade parts. ELECTRICAL CHARACTERISTICS (Notes 2, 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS V Analog Signal Range LTC1380 l V V V ANALOG EE CC LTC1393 l0V V CC R On Resistance LT1380: V = 5V, V = 5V, 35 70 ON CC EE V (V , V ) V , I = 1mA l 120 EE S D CC D LT1393: V = 5V, 70 140 CC 0V (V , V ) V , I = 1mA l 200 S D CC D LT1380/LTC1393: V = 2.7V, V = 0V, 210 400 CC EE 0V (V , V ) V , I = 1mA l 600 S D CC D R vs V V (V , V ) V , V = 5V 20 % ON S EE S D CC CC R vs Temperature V = 5V 0.5 %/C ON CC I Off-Channel or On-Channel LTC1380: (V + 0.5V) (V , V ) (V 0.5V) 0.05 5nA LEAK EE S D CC Switch Leakage LTC1393: 0.5V (V , V ) (V 0.5V) l 50 nA S D CC 2 U W U W U WW