Datasheet LT1794 (Analog Devices) - 4
| Manufacturer | Analog Devices |
| Description | Dual 500mA, 200MHz xDSL Line Driver Amplifier |
| Pages / Page | 20 / 4 — ELECTRICAL CHARACTERISTICS. Note 1. Note 4. Note 2. Note 5. Note 6. Note … |
| File Format / Size | PDF / 287 Kb |
| Document Language | English |
ELECTRICAL CHARACTERISTICS. Note 1. Note 4. Note 2. Note 5. Note 6. Note 3. Note 7. TYPICAL PERFOR A CE CHARACTERISTICS. Supply Current
Model Line for this Datasheet
Text Version of Document
LT1794
ELECTRICAL CHARACTERISTICS Note 1
: Absolute Maximum Ratings are those values beyond which the life
Note 4
: Thermal resistance varies depending upon the amount of PC board of a device may be impaired. metal attached to the device. If the maximum dissipation of the package is
Note 2
: Applies to short circuits to ground only. A short circuit between exceeded, the device will go into thermal shutdown and be protected. the output and either supply may permanently damage the part when
Note 5
: Guaranteed by the CMRR tests. operated on supplies greater than ±10V.
Note 6
: RBIAS is connected between V + and the SHDN pin.
Note 3
: The LT1794C is guaranteed to meet specified performance from
Note 7
: Slew rate is measured at ±5V on a ±10V output signal while 0°C to 70°C and is designed, characterized and expected to meet these operating on ±15V supplies and ±1V on a ±3V output signal while extended temperature limits, but is not tested at – 40°C and 85°C. The operating on ±5V supplies. LT1794I is guaranteed to meet the extended temperature limits.
W U TYPICAL PERFOR A CE CHARACTERISTICS Supply Current Input Common Mode Range Input Bias Current vs Ambient Temperature vs Supply Voltage vs Ambient Temperature
15 V+ 200 V T S = ±12V A = 25°C VS = ±12V 14 R –0.5 BIAS = 24.9k TO SHDN ∆VOS > 1mV 180 IS PER AMPLIFIER = 10mA V 13 SHDNREF = 0V –1.0 160 12 –1.5 140 11 –2.0 120 (nA) 10 100 9 2.0 ±I BIAS 80 PER AMPLIFIER (mA) 8 1.5 60 COMMON MODE RANGE (V) I SUPPLY 7 1.0 40 6 0.5 20 5 V– 0 –50 –30 –10 10 30 50 70 90 2 4 6 8 10 12 14 –50 –30 –10 10 30 50 70 90 TEMPERATURE (°C) SUPPLY VOLTAGE (±V) TEMPERATURE (°C) 1794 G01 1794 G02 1794 G03
Output Short-Circuit Current Output Saturation Voltage Input Noise Spectral Density vs Ambient Temperature vs Ambient Temperature
100 100 800 V+ TA = 25°C VS = ±12V VS = ±12V V 780 S = ±12V I INPUT CURRENT NOISE (pA/VHz) S PER AMPLIFIER = 10mA –0.5 IS PER AMPLIFIER = 10mA 760 RL = 100Ω –1.0 740 10 en 10 ILOAD = 250mA 720 –1.5 (mA) 700 I SC SINKING 680 i 1.5 1 n 1 SOURCING 660 ILOAD = 250mA 1.0 640 INPUT VOLTAGE NOISE (V/VHz) RL = 100Ω 620 OUTPUT SATURATION VOLTAGE (V) 0.5 0.1 0.1 600 V– 1 10 100 1k 10k 100k –50 –30 –10 10 30 50 70 90 – 50 –30 –10 10 30 50 70 90 FREQUENCY (Hz) TEMPERATURE (°C) TEMPERATURE (°C) 1794 G04 1794 G05 1794 G06 4
ELECTRICAL CHARACTERISTICS Note 1
: Absolute Maximum Ratings are those values beyond which the life
Note 4
: Thermal resistance varies depending upon the amount of PC board of a device may be impaired. metal attached to the device. If the maximum dissipation of the package is
Note 2
: Applies to short circuits to ground only. A short circuit between exceeded, the device will go into thermal shutdown and be protected. the output and either supply may permanently damage the part when
Note 5
: Guaranteed by the CMRR tests. operated on supplies greater than ±10V.
Note 6
: RBIAS is connected between V + and the SHDN pin.
Note 3
: The LT1794C is guaranteed to meet specified performance from
Note 7
: Slew rate is measured at ±5V on a ±10V output signal while 0°C to 70°C and is designed, characterized and expected to meet these operating on ±15V supplies and ±1V on a ±3V output signal while extended temperature limits, but is not tested at – 40°C and 85°C. The operating on ±5V supplies. LT1794I is guaranteed to meet the extended temperature limits.
W U TYPICAL PERFOR A CE CHARACTERISTICS Supply Current Input Common Mode Range Input Bias Current vs Ambient Temperature vs Supply Voltage vs Ambient Temperature
15 V+ 200 V T S = ±12V A = 25°C VS = ±12V 14 R –0.5 BIAS = 24.9k TO SHDN ∆VOS > 1mV 180 IS PER AMPLIFIER = 10mA V 13 SHDNREF = 0V –1.0 160 12 –1.5 140 11 –2.0 120 (nA) 10 100 9 2.0 ±I BIAS 80 PER AMPLIFIER (mA) 8 1.5 60 COMMON MODE RANGE (V) I SUPPLY 7 1.0 40 6 0.5 20 5 V– 0 –50 –30 –10 10 30 50 70 90 2 4 6 8 10 12 14 –50 –30 –10 10 30 50 70 90 TEMPERATURE (°C) SUPPLY VOLTAGE (±V) TEMPERATURE (°C) 1794 G01 1794 G02 1794 G03
Output Short-Circuit Current Output Saturation Voltage Input Noise Spectral Density vs Ambient Temperature vs Ambient Temperature
100 100 800 V+ TA = 25°C VS = ±12V VS = ±12V V 780 S = ±12V I INPUT CURRENT NOISE (pA/VHz) S PER AMPLIFIER = 10mA –0.5 IS PER AMPLIFIER = 10mA 760 RL = 100Ω –1.0 740 10 en 10 ILOAD = 250mA 720 –1.5 (mA) 700 I SC SINKING 680 i 1.5 1 n 1 SOURCING 660 ILOAD = 250mA 1.0 640 INPUT VOLTAGE NOISE (V/VHz) RL = 100Ω 620 OUTPUT SATURATION VOLTAGE (V) 0.5 0.1 0.1 600 V– 1 10 100 1k 10k 100k –50 –30 –10 10 30 50 70 90 – 50 –30 –10 10 30 50 70 90 FREQUENCY (Hz) TEMPERATURE (°C) TEMPERATURE (°C) 1794 G04 1794 G05 1794 G06 4
