Datasheet LT1787, LT1787HV (Analog Devices) - 3
| 制造商 | Analog Devices |
| 描述 | Precision, High Side Current Sense Amplifiers |
| 页数 / 页 | 16 / 3 — ELECTRICAL CHARACTERISTICS (Note 5). The. denotes the specifications … |
| 文件格式/大小 | PDF / 283 Kb |
| 文件语言 | 英语 |
ELECTRICAL CHARACTERISTICS (Note 5). The. denotes the specifications which apply over the temperature range 0
该数据表的模型线
- 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
文件文字版本
LT1787/LT1787HV
ELECTRICAL CHARACTERISTICS (Note 5) The
●
denotes the specifications which apply over the temperature range 0
°
C
≤
TA
≤
70
°
C, otherwise specifications are at TA = 25
°
C. Total supply = (V – S – VEE) = 2.5V to 36V (LT1787C), 2.5V to 60V (LT1787HVC) unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Input Offset Voltage (MS8) IOUT = 0, VS Supply = 5V – 125 ±40 125 µV 0°C ≤ TA ≤ 70°C ● – 230 230 µV IOUT = 0 (LT1787) – 150 150 µV 0°C ≤ TA ≤ 70°C ● – 250 250 µV IOUT = 0 (LT1787HV) – 150 150 µV 0°C ≤ TA ≤ 70°C ● – 250 250 µV VOS TC Temperature Coefficient of VOS VS Supply = 5V (Note 6) ● 0.5 2 µV/°C IOUT(O) No-Load Output Current Error VSENSE = 0V 4 nA VOUT(O) No-Load Output Voltage Error VSENSE = 0V, VS Supply = 5V –600 600 µV (S8) 0°C ≤ TA ≤ 70°C ● –1080 1080 µV No-Load Output Voltage Error VSENSE = 0V, VS Supply = 5V – 1000 1000 µV (MS8) 0°C ≤ TA ≤ 70°C ● –1840 1840 µV gm Tranconductance, IOUT/ VSENSE ±VSENSE = 10mV, 50mV, 100mV, 150mV, 250mV, 400 µA/V VS Supply = Total Supply + |VSENSE| AV Gain, VOUT/ VSENSE ±VSENSE = 100mV, VS Supply = 5V ● 7.76 8 8.24 V/V Output Voltage Gain Error ±VSENSE = 100mV, VS Supply = 5V ● – 3 1 3 % VS PSRR VS Supply Rejection Ratio VSENSE = 0V, VS Supply = 2.5V to 36V (LT1787) ● 120 135 dB VSENSE = 0V, VS Supply = 2.5V to 60V (LT1787HV) ● 120 135 dB VEE PSRR Negative Supply Rejection Ratio VSENSE = 0V, VS Supply = 15V, VBIAS = 0V, ● 100 130 dB VEE = – 1V to – 15V (LT1787) VSENSE = 0V, VS Supply = 40V, VBIAS = 0V, ● 100 130 dB VEE = – 1V to – 15V (LT1787HV) ∆VOS Change in Input Offset Voltage VSENSE = 0V, VS Supply = 36V, VBIAS = 0.5V to 25V (LT1787) ● 100 130 dB ∆VBIAS with Change in VBIAS Voltage VSENSE = 0V, VS Supply = 60V, VBIAS = 0.5V to 25V (LT1787HV) ● 100 130 dB I + S (O) Positive Input Sense Current VSENSE = 0V ● 10 20 µA I – S (O) Negative Input Sense Current VSENSE = 0V ● 50 100 µA IEE(O) Negative Supply Current VSENSE = 0V ● 60 120 µA IOUT Output Current VSENSE = ±128mV ±50 µA V + OUT Output Voltage VSENSE = ±128mV, VS ≥ 3.3V VBIAS ±1.024 V Ripple Rejection V + – S = VS = 20V, ∆VS Supply = 1V, f = 1kHz ● 80 88 dB VOMIN Minimum Output Voltage VSENSE = 0V, VBIAS = 0V 30 45 mV V + – SENSE = VS – VS = –128mV, VBIAS = 0V 10 mV VSENSE = 0V, VBIAS = 0V ● 30 49 mV V + – SENSE = VS – VS = –128mV, VBIAS = 0V 10 mV Unipolar Output VSENSE = 2mV, VBIAS = 0V 32 50 mV Saturation Voltage VSENSE = 4mV, VBIAS = 0V 38 55 mV VSENSE = 5mV, VBIAS = 0V 43 60 mV VSENSE = 6mV, VBIAS = 0V 49 65 mV VSENSE = 2mV, VBIAS = 0V ● 32 54 mV VSENSE = 4mV, VBIAS = 0V ● 38 59 mV VSENSE = 5mV, VBIAS = 0V ● 43 64 mV VSENSE = 6mV, VBIAS = 0V ● 49 69 mV V + OMAX Maximum Output Voltage VS – 0.75 V RG1A, RG2A Input Gain-Setting Resistor Pin 1 to Pin 2, Pin 7 to Pin 8 1.25 kΩ ROUT Output Resistor Pin 5 to Pin 6 20 kΩ 1787fc 3
ELECTRICAL CHARACTERISTICS (Note 5) The
●
denotes the specifications which apply over the temperature range 0
°
C
≤
TA
≤
70
°
C, otherwise specifications are at TA = 25
°
C. Total supply = (V – S – VEE) = 2.5V to 36V (LT1787C), 2.5V to 60V (LT1787HVC) unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Input Offset Voltage (MS8) IOUT = 0, VS Supply = 5V – 125 ±40 125 µV 0°C ≤ TA ≤ 70°C ● – 230 230 µV IOUT = 0 (LT1787) – 150 150 µV 0°C ≤ TA ≤ 70°C ● – 250 250 µV IOUT = 0 (LT1787HV) – 150 150 µV 0°C ≤ TA ≤ 70°C ● – 250 250 µV VOS TC Temperature Coefficient of VOS VS Supply = 5V (Note 6) ● 0.5 2 µV/°C IOUT(O) No-Load Output Current Error VSENSE = 0V 4 nA VOUT(O) No-Load Output Voltage Error VSENSE = 0V, VS Supply = 5V –600 600 µV (S8) 0°C ≤ TA ≤ 70°C ● –1080 1080 µV No-Load Output Voltage Error VSENSE = 0V, VS Supply = 5V – 1000 1000 µV (MS8) 0°C ≤ TA ≤ 70°C ● –1840 1840 µV gm Tranconductance, IOUT/ VSENSE ±VSENSE = 10mV, 50mV, 100mV, 150mV, 250mV, 400 µA/V VS Supply = Total Supply + |VSENSE| AV Gain, VOUT/ VSENSE ±VSENSE = 100mV, VS Supply = 5V ● 7.76 8 8.24 V/V Output Voltage Gain Error ±VSENSE = 100mV, VS Supply = 5V ● – 3 1 3 % VS PSRR VS Supply Rejection Ratio VSENSE = 0V, VS Supply = 2.5V to 36V (LT1787) ● 120 135 dB VSENSE = 0V, VS Supply = 2.5V to 60V (LT1787HV) ● 120 135 dB VEE PSRR Negative Supply Rejection Ratio VSENSE = 0V, VS Supply = 15V, VBIAS = 0V, ● 100 130 dB VEE = – 1V to – 15V (LT1787) VSENSE = 0V, VS Supply = 40V, VBIAS = 0V, ● 100 130 dB VEE = – 1V to – 15V (LT1787HV) ∆VOS Change in Input Offset Voltage VSENSE = 0V, VS Supply = 36V, VBIAS = 0.5V to 25V (LT1787) ● 100 130 dB ∆VBIAS with Change in VBIAS Voltage VSENSE = 0V, VS Supply = 60V, VBIAS = 0.5V to 25V (LT1787HV) ● 100 130 dB I + S (O) Positive Input Sense Current VSENSE = 0V ● 10 20 µA I – S (O) Negative Input Sense Current VSENSE = 0V ● 50 100 µA IEE(O) Negative Supply Current VSENSE = 0V ● 60 120 µA IOUT Output Current VSENSE = ±128mV ±50 µA V + OUT Output Voltage VSENSE = ±128mV, VS ≥ 3.3V VBIAS ±1.024 V Ripple Rejection V + – S = VS = 20V, ∆VS Supply = 1V, f = 1kHz ● 80 88 dB VOMIN Minimum Output Voltage VSENSE = 0V, VBIAS = 0V 30 45 mV V + – SENSE = VS – VS = –128mV, VBIAS = 0V 10 mV VSENSE = 0V, VBIAS = 0V ● 30 49 mV V + – SENSE = VS – VS = –128mV, VBIAS = 0V 10 mV Unipolar Output VSENSE = 2mV, VBIAS = 0V 32 50 mV Saturation Voltage VSENSE = 4mV, VBIAS = 0V 38 55 mV VSENSE = 5mV, VBIAS = 0V 43 60 mV VSENSE = 6mV, VBIAS = 0V 49 65 mV VSENSE = 2mV, VBIAS = 0V ● 32 54 mV VSENSE = 4mV, VBIAS = 0V ● 38 59 mV VSENSE = 5mV, VBIAS = 0V ● 43 64 mV VSENSE = 6mV, VBIAS = 0V ● 49 69 mV V + OMAX Maximum Output Voltage VS – 0.75 V RG1A, RG2A Input Gain-Setting Resistor Pin 1 to Pin 2, Pin 7 to Pin 8 1.25 kΩ ROUT Output Resistor Pin 5 to Pin 6 20 kΩ 1787fc 3