Datasheet LT1787, LT1787HV (Analog Devices) - 7
| Hersteller | Analog Devices |
| Beschreibung | Precision, High Side Current Sense Amplifiers |
| Seiten / Seite | 16 / 7 — TYPICAL PERFORMANCE CHARACTERISTICS. Input Offset Voltage vs. Output … |
| Dateiformat / Größe | PDF / 283 Kb |
| Dokumentensprache | Englisch |
TYPICAL PERFORMANCE CHARACTERISTICS. Input Offset Voltage vs. Output Voltage vs Sense Voltage. Negative Supply Voltage
Modelllinie für dieses Datenblatt
- LT1787CMS8#PBF LT1787CMS8#PBF LT1787CMS8#TRPBF LT1787CMS8#TRPBF LT1787CS8#PBF LT1787CS8#PBF LT1787CS8#TRPBF LT1787CS8#TRPBF LT1787HS8#PBF LT1787HS8#PBF LT1787HS8#TRPBF LT1787HS8#TRPBF LT1787HVCMS8#PBF LT1787HVCMS8#TRPBF LT1787HVCS8#PBF LT1787HVCS8#TRPBF LT1787HVHS8#PBF LT1787HVHS8#TRPBF LT1787HVIMS8#PBF LT1787HVIMS8#TRPBF LT1787HVIS8#PBF LT1787HVIS8#TRPBF LT1787IMS8#PBF LT1787IMS8#PBF LT1787IMS8#TRPBF LT1787IMS8#TRPBF LT1787IS8#PBF LT1787IS8#PBF LT1787IS8#TRPBF LT1787IS8#TRPBF
Textversion des Dokuments
LT1787/LT1787HV
W U TYPICAL PERFORMANCE CHARACTERISTICS Input Offset Voltage vs Input Offset Voltage vs Output Voltage vs Sense Voltage Negative Supply Voltage Temperature (Bidirectional Mode)
30 50 + – V + – 2.5 S = V = 2.5V V = V S 40 S S VS = 5.5V TO 60V V V V 20 BIAS = 1V TA = 85°C BIAS = 0V 2.0 BIAS = 2.5V 30 V V µV) µV) EE = –1.25V 1.5 EE = 0V 20 10 1.0 10 0.5 0 0 V T BIAS A = 25°C –10 –0.5 –10 –1.0 T –20 A = –40°C OUTPUT VOLTAGE (V) INPUT OFFSET VOLTAGE ( INPUT OFFSET VOLTAGE ( –30 –1.5 –20 –2.0 –40 –2.5 –30 –50 0 – 5 –10 –15 –20 –25 –30 –40 –20 0 20 40 60 80 –250 –150 –50 50 150 250 NEGATIVE SUPPLY VOLTAGE (V) TEMPERATURE (°C) 85 SENSE VOLTAGE (V + – S – VS ) (mV) 1787 G04 1787 G05 1787 G06
Output Voltage vs Sense Voltage (Unidirectional Mode) Gain vs Temperature Gain vs Frequency
1.4 8.195 30 VS = 2.5V TO 60V VS = (2.5V + |VSENSE|)TO 60V VSENSE = 10mV 1.2 TA = –40°C TO 85°C 20 8.185 VBIAS = VEE V + – S > VS 10 1.0 8.175 0 0.8 V) 8.165 –10 0.6 GAIN (V/ GAIN (dB) –20 8.155 + – OUPUT VOLTAGE (V) 0.4 VS < VS –30 0.2 8.145 –40 0 8.135 –50 0 30 60 90 120 150 –40 –20 0 20 40 60 80 0.1k 1k 10k 100k 1M 10M 100M SENSE VOLTAGE (V + – TEMPERATURE (°C) 85 S – VS ) (mV) FREQUENCY (Hz) 1787 G07 1787 G08 1787 G09
Negative Input Sense Current vs Positive Input Sense Current vs Supply Current vs Supply Voltage Sense Voltage Sense Voltage
75 120 60 VS = (2.5V + |VSENSE|) TO 60V VS = (2.5V + |VSENSE|) TO 60V 110 70 T µA) A = 85°C µA) 50 100 µA) 65 90 40 T 60 A = 25°C 80 TA = 85°C 30 55 TA = –40°C 70 TA = 85°C 60 20 T SUPPLY CURRENT ( 50 A = 25°C TA = 25°C TA = –40°C 50 45 T 10 A = –40°C 40 V + – NEGATIVE INPUT SENSE CURRENT ( POSITIVE INPUT SENSE CURRENT ( S = VS 40 30 0 0 10 20 30 40 50 60 –128 –96 –64 –32 0 32 64 96 128 –128 –96 –64 –32 0 32 64 96 128 TOTAL SUPPLY VOLTAGE (V) SENSE VOLTAGE (V + – + – S – VS ) (mV) SENSE VOLTAGE (VS – VS ) (mV) 1787 G10 1787 G11 1787 G17 1787fc 7
W U TYPICAL PERFORMANCE CHARACTERISTICS Input Offset Voltage vs Input Offset Voltage vs Output Voltage vs Sense Voltage Negative Supply Voltage Temperature (Bidirectional Mode)
30 50 + – V + – 2.5 S = V = 2.5V V = V S 40 S S VS = 5.5V TO 60V V V V 20 BIAS = 1V TA = 85°C BIAS = 0V 2.0 BIAS = 2.5V 30 V V µV) µV) EE = –1.25V 1.5 EE = 0V 20 10 1.0 10 0.5 0 0 V T BIAS A = 25°C –10 –0.5 –10 –1.0 T –20 A = –40°C OUTPUT VOLTAGE (V) INPUT OFFSET VOLTAGE ( INPUT OFFSET VOLTAGE ( –30 –1.5 –20 –2.0 –40 –2.5 –30 –50 0 – 5 –10 –15 –20 –25 –30 –40 –20 0 20 40 60 80 –250 –150 –50 50 150 250 NEGATIVE SUPPLY VOLTAGE (V) TEMPERATURE (°C) 85 SENSE VOLTAGE (V + – S – VS ) (mV) 1787 G04 1787 G05 1787 G06
Output Voltage vs Sense Voltage (Unidirectional Mode) Gain vs Temperature Gain vs Frequency
1.4 8.195 30 VS = 2.5V TO 60V VS = (2.5V + |VSENSE|)TO 60V VSENSE = 10mV 1.2 TA = –40°C TO 85°C 20 8.185 VBIAS = VEE V + – S > VS 10 1.0 8.175 0 0.8 V) 8.165 –10 0.6 GAIN (V/ GAIN (dB) –20 8.155 + – OUPUT VOLTAGE (V) 0.4 VS < VS –30 0.2 8.145 –40 0 8.135 –50 0 30 60 90 120 150 –40 –20 0 20 40 60 80 0.1k 1k 10k 100k 1M 10M 100M SENSE VOLTAGE (V + – TEMPERATURE (°C) 85 S – VS ) (mV) FREQUENCY (Hz) 1787 G07 1787 G08 1787 G09
Negative Input Sense Current vs Positive Input Sense Current vs Supply Current vs Supply Voltage Sense Voltage Sense Voltage
75 120 60 VS = (2.5V + |VSENSE|) TO 60V VS = (2.5V + |VSENSE|) TO 60V 110 70 T µA) A = 85°C µA) 50 100 µA) 65 90 40 T 60 A = 25°C 80 TA = 85°C 30 55 TA = –40°C 70 TA = 85°C 60 20 T SUPPLY CURRENT ( 50 A = 25°C TA = 25°C TA = –40°C 50 45 T 10 A = –40°C 40 V + – NEGATIVE INPUT SENSE CURRENT ( POSITIVE INPUT SENSE CURRENT ( S = VS 40 30 0 0 10 20 30 40 50 60 –128 –96 –64 –32 0 32 64 96 128 –128 –96 –64 –32 0 32 64 96 128 TOTAL SUPPLY VOLTAGE (V) SENSE VOLTAGE (V + – + – S – VS ) (mV) SENSE VOLTAGE (VS – VS ) (mV) 1787 G10 1787 G11 1787 G17 1787fc 7