Datasheet LTC2990 (Analog Devices) - 3
| 制造商 | Analog Devices |
| 描述 | Quad I2C Voltage, Current and Temperature Monitor |
| 页数 / 页 | 26 / 3 — ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply … |
| 修订版 | F |
| 文件格式/大小 | PDF / 340 Kb |
| 文件语言 | 英语 |
ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply over the full operating
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LTC2990
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 3.3V, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VOFFSET_DIFF Differential Offset V1 = V2 = VCC, V3 = V4 = 0V –12.5 0 12.5 LSB VOFFSET_SE Single-Ended Offset V1, V2, V3, V4 = 0V –6 0 6 LSB VDIFF(CMR) Differential Voltage Common Mode Range l 0 VCC V VLSB(DIFF) Differential Voltage LSB Weight 19.42 µV VLSB(SINGLE-ENDED) Single-Ended Voltage LSB Weight 305.18 µV VLSB(TEMP) Temperature LSB Weight Celsius or Kelvin 0.0625 Deg TNOISE Temperature Noise Celsius or Kelvin 0.2 °RMS TMEAS = 46ms (Note 2) 0.05 °/√Hz Res Resolution (No Missing Codes) (Note 2) l 14 Bits INL Integral Nonlinearity 2.9V ≤ VCC ≤ 5.5V, VIN(CM) = 1.5V l (Note 2) Single-Ended –2 2 LSB Differential –2 2 LSB CIN V1 Through V4 Input Sampling (Note 2) 0.35 pF Capacitance IIN(AVG) V1 Through V4 Input Average Sampling 0V ≤ VN ≤ 3V (Note 2) 0.6 µA Current IDC_LEAK(VIN) V1 Through V4 Input Leakage Current 0V ≤ VN ≤ VCC l –10 10 nA
Measurement Delay
TINT , TR1, TR2 Per Configured Temperature Measurement (Note 2) l 37 46 55 ms V1, V2, V3, V4 Single-Ended Voltage Measurement (Note 2) Per Voltage, Two Minimum l 1.2 1.5 1.8 ms V1 – V2, V3 – V4 Differential Voltage Measurement (Note 2) l 1.2 1.5 1.8 ms VCC VCC Measurement (Note 2) l 1.2 1.5 1.8 ms Max Delay Mode[4:0] = 11101, TINT , TR1, TR2, VCC (Note 2) l 167 ms
V1, V3 Output (Remote Diode Mode Only)
IOUT Output Current Remote Diode Mode l 260 350 µA VOUT Output Voltage l 0 VCC V
I2C Interface
VADR(L) ADR0, ADR1 Input Low Threshold Voltage Falling l 0.3 • VCC V VADR(H) ADR0, ADR1 Input High Threshold Voltage Rising l 0.7 • VCC V VOL1 SDA Low Level Maximum Voltage IO = –3mA, VCC = 2.9V to 5.5V l 0.4 V VIL Maximum Low Level Input Voltage SDA and SCL Pins l 0.3 • VCC V VIH Minimum High Level Input Voltage SDA and SCL Pins l 0.7 • VCC V ISDAI,SCLI SDA, SCL Input Current 0 < VSDA,SCL < VCC l ±1 µA IADR(MAX) Maximum ADR0, ADR1 Input Current ADR0 or ADR1 Tied to VCC or GND l ±1 µA
I2C Timing (Note 2)
fSCL(MAX) Maximum SCL Clock Frequency 400 kHz tLOW Minimum SCL Low Period 1.3 µs tHIGH Minimum SCL High Period 600 ns tBUF(MIN) Minimum Bus Free Time Between Stop/ 1.3 µs Start Condition tHD,STA(MIN) Minimum Hold Time After (Repeated) 600 ns Start Condition Rev. F For more information www.analog.com 3 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Pin Functions Functional Diagram Timing Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 3.3V, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VOFFSET_DIFF Differential Offset V1 = V2 = VCC, V3 = V4 = 0V –12.5 0 12.5 LSB VOFFSET_SE Single-Ended Offset V1, V2, V3, V4 = 0V –6 0 6 LSB VDIFF(CMR) Differential Voltage Common Mode Range l 0 VCC V VLSB(DIFF) Differential Voltage LSB Weight 19.42 µV VLSB(SINGLE-ENDED) Single-Ended Voltage LSB Weight 305.18 µV VLSB(TEMP) Temperature LSB Weight Celsius or Kelvin 0.0625 Deg TNOISE Temperature Noise Celsius or Kelvin 0.2 °RMS TMEAS = 46ms (Note 2) 0.05 °/√Hz Res Resolution (No Missing Codes) (Note 2) l 14 Bits INL Integral Nonlinearity 2.9V ≤ VCC ≤ 5.5V, VIN(CM) = 1.5V l (Note 2) Single-Ended –2 2 LSB Differential –2 2 LSB CIN V1 Through V4 Input Sampling (Note 2) 0.35 pF Capacitance IIN(AVG) V1 Through V4 Input Average Sampling 0V ≤ VN ≤ 3V (Note 2) 0.6 µA Current IDC_LEAK(VIN) V1 Through V4 Input Leakage Current 0V ≤ VN ≤ VCC l –10 10 nA
Measurement Delay
TINT , TR1, TR2 Per Configured Temperature Measurement (Note 2) l 37 46 55 ms V1, V2, V3, V4 Single-Ended Voltage Measurement (Note 2) Per Voltage, Two Minimum l 1.2 1.5 1.8 ms V1 – V2, V3 – V4 Differential Voltage Measurement (Note 2) l 1.2 1.5 1.8 ms VCC VCC Measurement (Note 2) l 1.2 1.5 1.8 ms Max Delay Mode[4:0] = 11101, TINT , TR1, TR2, VCC (Note 2) l 167 ms
V1, V3 Output (Remote Diode Mode Only)
IOUT Output Current Remote Diode Mode l 260 350 µA VOUT Output Voltage l 0 VCC V
I2C Interface
VADR(L) ADR0, ADR1 Input Low Threshold Voltage Falling l 0.3 • VCC V VADR(H) ADR0, ADR1 Input High Threshold Voltage Rising l 0.7 • VCC V VOL1 SDA Low Level Maximum Voltage IO = –3mA, VCC = 2.9V to 5.5V l 0.4 V VIL Maximum Low Level Input Voltage SDA and SCL Pins l 0.3 • VCC V VIH Minimum High Level Input Voltage SDA and SCL Pins l 0.7 • VCC V ISDAI,SCLI SDA, SCL Input Current 0 < VSDA,SCL < VCC l ±1 µA IADR(MAX) Maximum ADR0, ADR1 Input Current ADR0 or ADR1 Tied to VCC or GND l ±1 µA
I2C Timing (Note 2)
fSCL(MAX) Maximum SCL Clock Frequency 400 kHz tLOW Minimum SCL Low Period 1.3 µs tHIGH Minimum SCL High Period 600 ns tBUF(MIN) Minimum Bus Free Time Between Stop/ 1.3 µs Start Condition tHD,STA(MIN) Minimum Hold Time After (Repeated) 600 ns Start Condition Rev. F For more information www.analog.com 3 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Pin Functions Functional Diagram Timing Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts