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LTC6255 Datasheet(PDF) 6 Page - Linear Technology |
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LTC6255 Datasheet(HTML) 6 Page - Linear Technology |
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6 / 28 page  LTC6258/LTC6259/LTC6260 6 6258960fa For more information www.linear.com/LTC6258 Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: The inputs are protected by back-to-back diodes as well as ESD protection diodes to each power supply. If the differential input voltage exceeds 1.4V or the input extends more than 500mV beyond the power supply, the input current should be limited to less than 10mA. Note 3: A heat sink may be required to keep the junction temperature below the absolute maximum rating when the output is shorted indefinitely. Note 4: LTC6258I/LTC6259I/LTC6260I and LTC6258H/LTC6259H/ LTC6260H are guaranteed functional over the temperature range of –40°C to 125°C. 1.8V ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VSUPPLY = 1.8V, VCM = VOUT = 0.4V, CL = 10pF, VSHDN is unconnected. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VOH Output Swing High (Input Overdrive 30mV), Measured from V+ No Load l 25 40 50 mV mV ISOURCE = 100µA l 35 60 100 mV mV ISOURCE = 1mA l 95 140 300 mV mV ISC Output Short-Circuit Current l 4 1 10 mA mA IS Supply Current per Amplifier l 17 10 20 21 23 µA µA Supply Current in Shutdown l 1.0 1.5 2 µA µA ISHDN Shutdown Pin Current VSHDN = 0.5V VSHDN = 1.5V l l 50 0 80 10 nA nA VIL SHDN Input Low Voltage Disable l 0.5 V VIH SHDN Input High Voltage Enable l 1.5 V tON Turn-On Time SHDN Toggle From 0V to 1.8V 47 µs tOFF Turn-Off Time SHDN Toggle From 1.8V to 0V 17 µs GBW Gain-Bandwidth Product f = 10kHz l 1.0 0.4 1.3 MHz MHz TS Settling Time, 0.3V to 1.5V, Unity Gain 0.1% 0.01% 7 12 µs µs SR Slew Rate AV = –1, VOUT = 0.3V to 1.5V, CLOAD = 10pF RF = RG = 10kΩ l 0.16 0.1 0.22 V/µs V/µs FPBW Full Power Bandwidth (Note 8) 1.2VP-P 58 kHz THD+N Total Harmonic Distortion and Noise f = 500Hz, AV = 2, RL = 4kΩ, VOUTP-P = 1V VIN = 0.65V to 0.15V 0.04 68 % dB Note 5: The LTC6258I/LTC6259I/LTC6260I are guaranteed to meet specified performance from –40°C to 85°C. The LTC6258H/LTC6259H/ LTC6260H are guaranteed to meet specified performance from –40°C to 125°C. Note 6: Thermal resistance varies with the amount of PC board metal connected to the package. The specified values are for short traces connected to the leads. Note 7: The input bias current is the average of the currents into the positive and negative input pins. Note 8: Full power bandwidth is calculated from the slew rate FPBW = SR/π • VP-P. |
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