Datasheet LTM2887 (Analog Devices) - 9

LTM2887
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, LTM2887-3 VCC = 3.3V, LTM2887-5 VCC = 5V, VL = 3.3V, GND = GND2 = 0V, ON = VL unless otherwise noted. VCC2 or VL2 Transient Response 100mA Load Step VCC2 or VL2 Ripple VCC2 or VL2 Noise
LOAD = 1mA LOAD = 1mA 0.2V/ DIV 5mV/ 2mV/ DIV DIV LOAD = 100mA LOAD = 100mA 50mA/ DIV 200µs/DIV 400ns/DIV 10ms/DIV 2887 G09 2887 G10 2887 G11
VCC Supply Current Logic Input Threshold Logic Output Voltage vs Single Channel Data Rate vs VL Supply Voltage vs Load Current
70 3.5 6 CL = 1nF LTM2887-5 CL = 330pF 60 C 3.0 L = 100pF 5 CL = 20pF VL = 5.5V 2.5 VL = 3.3V 50 INPUT RISING 4 VL = 1.62V TAGE (V) 2.0 TAGE (V) 40 INPUT FALLING 3 1.5 CURRENT (mA) V CC 30 2 1.0 OUTPUT VOL THRESHOLD VOL 20 0.5 1 10 0 0 1k 10k 100k 1M 10M 100M 1 2 3 4 5 6 0 1 2 3 4 5 6 7 8 9 10 DATA RATE (Hz) VL SUPPLY VOLTAGE (V) |LOAD CURRENT| (mA) 2887 G12 2887 G13 2887 G14
VCC2 and VL2 Efficiency with Derating for 125°C Maximum Power On Sequence Equal Load Current Internal Operating Temperature
70 1.4 600 ON 60 1.2 500 EFFICIENCY 5V/DIV VCC2 or VL2 50 1.0 POWER LOSS (W) 400 40 0.8 300 30 0.6 Y CURRENT (mA) EFFICIENCY (%) LTM2887-3, VCC = 3.3V 200 20 POWER LOSS 0.4 SUPPL LTM2887-5, VCC = 5V V CC BASED ON THERMAL IMAGING 100 1V/DIV 10 0.2 LTM2887-3, VCC = 3.3V OF DEMO CIRCUIT 1791A VL = 5V LTM2887-5, VCC = 5V VCC2 and VL2 EQUALLY LOADED 0 0.0 0 1ms/DIV 0 25 50 75 100 125 0 25 50 75 100 125 LOAD CURRENT (mA) TEMPERATURE (°C) 2887 G15 2887 G16 2887 G17 2887fb For more information www.linear.com/LTM2887 9 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Product Selection Guide Order Information Electrical Characteristics Switching Characteristics Isolation Characteristics Typical Performance Characteristics Pin Functions Block Diagrams Test Circuits Applications Information Typical Applications Package Description Revision History Typical Application Related Parts