Datasheet LTC6943 (Analog Devices) - 3
| Manufacturer | Analog Devices |
| Description | Micropower, Dual Precision Instrumentation Switched Capacitor Building Block |
| Pages / Page | 16 / 3 — TYPICAL PERFOR A CE CHARACTERISTICS (Test Circuits 2 through 4). Power … |
| File Format / Size | PDF / 250 Kb |
| Document Language | English |
TYPICAL PERFOR A CE CHARACTERISTICS (Test Circuits 2 through 4). Power Supply Current vs Power Supply Voltage. ON vs VIN
Model Line for this Datasheet
Text Version of Document
LTC6943
W U TYPICAL PERFOR A CE CHARACTERISTICS (Test Circuits 2 through 4) Power Supply Current vs Power Supply Voltage R R ON vs VIN ON vs VIN
0.50 550 280 COSC = 0pF, TA = –55°C R V+ = 5V R V+ = 10V ON (PEAK) ON (PEAK) 0.45 COSC = 0pF, TA = 25°C 500 V– = 0V 260 V– = 0V COSC = 0pF, TA = 125°C TA = 25°C TA = 25°C 0.40 C 450 I = 100µA OSC = 4700pF, TA = –55°C V 240 I = 100µA IN VIN C 0.35 OSC = 4700pF, TA = 25°C 400 220 COSC = 4700pF, TA = 125°C 0.30 ) 350 ) 200 Ω Ω ( 0.25 300 ( I = 100µA 180 I = 100µA ON ON R R 0.20 250 I = mA 160 I = mA 0.15 200 140 SUPPLY CURRENT (mA) 0.10 150 120 0.05 100 100 0 0 2 4 6 8 10 12 14 16 18 0 1 2 3 4 5 0 1 2 3 4 5 6 7 8 9 10 VSUPPLY (V) VIN (V) VIN (V) 6943 TPC01 LTC1043 • TPC02 LTC1043 • TPC03
R R ON (Peak) vs Power Supply ON (Peak) vs Power Supply RON vs VIN Voltage Voltage and Temperature
260 1000 1100 R V+ = 15V ON (PEAK) RON (PEAK) V RON (PEAK) 240 V– = 0V 900 IN = 1.6V 1000 TA = 25°C 220 V I = 100µA 800 I = 100 900 I = 100 IN VIN µA VIN µA 200 700 800 ) 180 ) 600 ) 700 Ω Ω Ω ( 160 ( I = 100µA 500 600 T ON ON ON A = 125°C R R VIN ≈ 3.2V R 140 I = mA 400 500 120 300 VIN ≈ 7V 400 T V A = 70°C IN ≈ 11V 100 200 3V ≤ V+ + ≤18V 300 80 100 V– = 0V VIN ≈ 15.1V 200 TA = –55°C TA = 25°C 0 100 0 2 4 6 8 10 12 14 16 18 20 0 2 4 6 8 10 12 14 16 18 20 0 2 4 6 8 10 12 14 16 18 20 VIN (V) VSUPPLY (V) VSUPPLY (V) LTC1043 • TPC04 LTC1043 • TPC05 LTC1043 • TPC06
Oscillator Frequency, fOSC Oscillator Frequency, f Normalized Oscillator Frequency, OSC vs COSC vs Supply Voltage fOSC vs Supply Voltage
1000 250 1.5 TA = 25°C TA = 25°C TA = 25°C 225 200 1.3 100 175 C C OSC = 0pF OSC = 0pF 150 1.0 C (kHz) OSC = 100pF 10 V (kHz) 125 S = 5V AT 5V SUPPLY I OSC f OSC V 100 0.5 S = 10V OSC C 75 OSC = 10,000pF 1 V TO f S = 15V 50 0.3 COSC = 1,000pF COSC = 100pF 25 OSCILLATOR FREQUENCY NORMALIZED 0.1 0 0 0 1000 2000 3000 4000 5000 0 2 4 6 8 10 12 14 16 18 0 2 4 6 8 10 12 14 16 18 COSC (pF) VSUPPLY (V) VSUPPLY (V) 6943 TPC07 6943 TPC08 6943 TPC09 6943f 3
W U TYPICAL PERFOR A CE CHARACTERISTICS (Test Circuits 2 through 4) Power Supply Current vs Power Supply Voltage R R ON vs VIN ON vs VIN
0.50 550 280 COSC = 0pF, TA = –55°C R V+ = 5V R V+ = 10V ON (PEAK) ON (PEAK) 0.45 COSC = 0pF, TA = 25°C 500 V– = 0V 260 V– = 0V COSC = 0pF, TA = 125°C TA = 25°C TA = 25°C 0.40 C 450 I = 100µA OSC = 4700pF, TA = –55°C V 240 I = 100µA IN VIN C 0.35 OSC = 4700pF, TA = 25°C 400 220 COSC = 4700pF, TA = 125°C 0.30 ) 350 ) 200 Ω Ω ( 0.25 300 ( I = 100µA 180 I = 100µA ON ON R R 0.20 250 I = mA 160 I = mA 0.15 200 140 SUPPLY CURRENT (mA) 0.10 150 120 0.05 100 100 0 0 2 4 6 8 10 12 14 16 18 0 1 2 3 4 5 0 1 2 3 4 5 6 7 8 9 10 VSUPPLY (V) VIN (V) VIN (V) 6943 TPC01 LTC1043 • TPC02 LTC1043 • TPC03
R R ON (Peak) vs Power Supply ON (Peak) vs Power Supply RON vs VIN Voltage Voltage and Temperature
260 1000 1100 R V+ = 15V ON (PEAK) RON (PEAK) V RON (PEAK) 240 V– = 0V 900 IN = 1.6V 1000 TA = 25°C 220 V I = 100µA 800 I = 100 900 I = 100 IN VIN µA VIN µA 200 700 800 ) 180 ) 600 ) 700 Ω Ω Ω ( 160 ( I = 100µA 500 600 T ON ON ON A = 125°C R R VIN ≈ 3.2V R 140 I = mA 400 500 120 300 VIN ≈ 7V 400 T V A = 70°C IN ≈ 11V 100 200 3V ≤ V+ + ≤18V 300 80 100 V– = 0V VIN ≈ 15.1V 200 TA = –55°C TA = 25°C 0 100 0 2 4 6 8 10 12 14 16 18 20 0 2 4 6 8 10 12 14 16 18 20 0 2 4 6 8 10 12 14 16 18 20 VIN (V) VSUPPLY (V) VSUPPLY (V) LTC1043 • TPC04 LTC1043 • TPC05 LTC1043 • TPC06
Oscillator Frequency, fOSC Oscillator Frequency, f Normalized Oscillator Frequency, OSC vs COSC vs Supply Voltage fOSC vs Supply Voltage
1000 250 1.5 TA = 25°C TA = 25°C TA = 25°C 225 200 1.3 100 175 C C OSC = 0pF OSC = 0pF 150 1.0 C (kHz) OSC = 100pF 10 V (kHz) 125 S = 5V AT 5V SUPPLY I OSC f OSC V 100 0.5 S = 10V OSC C 75 OSC = 10,000pF 1 V TO f S = 15V 50 0.3 COSC = 1,000pF COSC = 100pF 25 OSCILLATOR FREQUENCY NORMALIZED 0.1 0 0 0 1000 2000 3000 4000 5000 0 2 4 6 8 10 12 14 16 18 0 2 4 6 8 10 12 14 16 18 COSC (pF) VSUPPLY (V) VSUPPLY (V) 6943 TPC07 6943 TPC08 6943 TPC09 6943f 3
