Datasheet LTC6115 (Analog Devices) - 4

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ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full specified temperature range, otherwise specifications are at T + A = 25°C. RIN = 100Ω, ROUT = 10kΩ, VSENSE = V+ (Note 4), 5V ≤ V+ ≤ 100V, VIN = 20V, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
tS Settling Time 0.1% AV = 1, 1V Output Step 25 µs IS Amplifier Supply Current (VS) No Load, VIN = 20V 55 76 µA l 85 µA
VOLTAGE SENSE, VS = 5V
Supply Voltage Range (VS) Guaranteed by the PSRR Test l 2.7 5.5 V VIN Voltage Range Referred to GND 0 100 V �G Total Gain Error at VIN = 100V No Load l 0.03 ±0.15 % �G Total Gain Error at VIN = 5V No Load 0.03 ±0.20 % l ±0.24 % Input Resistor Value Measured from VIN to GND l 0.85 1 1.15 MΩ IB (FB Pin) Input Bias Current VIN = 100V 3 100 pA –40°C to 85°C l 300 pA –40°C to 125°C l 2000 pA enP-P Input Noise Voltage 0.1Hz to 10Hz, VIN Referred, VIN = 15V, AV = 1 60 µVP-P en Input Noise Voltage Density (VIN) f = 1kHz 1.26 μV/√Hz (Note 7) f = 10kHz 1.13 μV/√Hz in Input Noise Current Density (Note 8) 1 fA/√Hz PSRR Power Supply Rejection Ratio (VS) VS = 2.7V to 5.5V, VIN = 20V, Measured at OUTV l 95 115 dB VOH Output Voltage, High (VS – OUTV) No Load l 1 2 mV ISOURCE = 0.5mA l 45 mV ISOURCE = 5mA l 450 mV VOL Output Voltage, Low (OUTV – GND) No Load l 1 2 mV ISINK = 0.5mA l 35 mV ISINK = 5mA l 350 mV ISC Output Short-Circuit Current (OUTV) Source 18 27 mA l 17 mA Sink 16 27 mA l 14 mA SR Slew Rate AV = 1 l 0.035 0.06 V/µs GBW Gain-Bandwidth Product (OUTV) RL = 100kΩ 300 530 kHz (fTEST = 20kHz) l 270 tS Settling Time 0.1% AV = 1, 1V Output Step 25 µs IS Amplifier Supply Current (VS) No Load, VIN = 20V 57 76 µA l 85 µA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 4:
VSENSE is the voltage developed across the external sense resistor may cause permanent damage to the device. Exposure to any Absolute R + SENSE. VSENSE is the voltage at the high side of RSENSE. See the Typical Maximum Rating condition for extended periods may affect device Application drawing on the front page. reliability and lifetime.
Note 5:
ROUT = 10kΩ for 7V ≤ VS ≤ 100V, ROUT = 2kΩ for VS = 5V, 6V.
Note 2:
The LTC6115I is guaranteed functional over the operating
Note 6:
Current sense minimum output voltage is measured with 0V shunt temperature range of –40°C to 85°C. The LTC6115H is guaranteed voltage and is limited by the maximum positive offset voltage. functional over the operating temperature range of –40°C to 125°C.
Note 7:
This includes the noise of the resistor divider and amplifier
Note 3:
The LTC6115I is guaranteed to meet specified performance A2, referred to the VIN pin. See the section on Noise Sources under from –40°C to 85°C. The LTC6115H is guaranteed to meet specified Applications Information: Voltage Sense for more details. performance from –40°C to 125°C.
Note 8:
Current noise is calculated from: in = 2qIB, where q = 1.6 • 10–19 Coulombs. Rev. B 4 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Current Sense Typical Performance Characteristics Voltage Sense Typical Performance Characteristics Pin Functions Block Diagram Applications Information: Current Sense Applications Information: Voltage Sense Typical Applications Package Description Revision History Typical Application Related Parts