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LT6550/LT6551

65501f

Note 1: Absolute Maximum Ratings are those values beyond which the life

of a device may be impaired.

Note 2: A heat sink may be required to keep the junction temperature

below absolute maximum. This depends on the power supply voltage and

how many amplifiers are shorted.

Note 3: The LT6550C/LT6551C are guaranteed to meet specified

performance from 0

°C to 70°C and are designed, characterized and

expected to meet specified performance from –40

°C to 85°C but are not

tested or QA sampled at these temperatures. The LT6550I/LT6551I are

guaranteed to meet specified performance from – 40

°C to 85°C.

Note 4: Thermal resistance varies depending upon the amount of PC board

metal attached to Pin 5 of the device.

θJA is specified for a 2500mm2 test

board covered with 2oz copper on both sides.

Note 5: Gain is measured by changing the input voltage, and dividing the

change in output voltage by the change in input voltage.

Note 6: Minimum supply voltage is guaranteed by the PSRR test.

Note 7: The supply current specification includes additional output current

through the internal feedback and gain resistor.

Note 8: Guaranteed by correlation to slew rate at 5V and

±5V.

Note 9: The inputs are protected from ESD with diodes to the supplies.

Note 10: Noise is input referred, including internal gain resistors.

(LT6550 Only) The q denotes the specifications which apply over

the specified temperature range, otherwise specifications are at TA = 25°C. VS = ±5V, VIN = 0V (Pins 1,2,3) VGND = 0V (Pin 4) unless

otherwise noted.

±5V ELECTRICAL CHARACTERISTICS

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Gain Flatness

Less than 0.25dB

MHz

Gain Matching

Any One Channel to Any Other Channel

0.15

Settling Time to 3%

RL = 150Ω, VOUT = 1V to 2.5V

Settling Time to 1%

RL = 150Ω, VOUT = 1V to 2.5V

% Overshoot

VOUT = 1V to 2.5V, RL = 150Ω

Differential Gain

RL = 150Ω, Black Level = 0V at Device Output

0.15

Differential Phase

RL = 150Ω, Black Level = 0V at Device Output

0.09

Deg

Channel Separation

Measured at 10MHz

Supply Current Per Amplifier vs

Supply Voltage

Output Voltage vs Input Voltage

Input Bias Current vs

Temperature

VCC (V)

6550/51 G01

VIN (V)

3.5

3.0

2.5

2.0

1.5

1.0

0.5

6550/51 G02

0.4

2.0

1.8

1.6

1.4

1.2

1.0

0.2

0.6 0.8

TEMPERATURE (

°C)

–50

–10

–11

–12

–13

–14

–15

–16

–17

–18

–19

–20

6550/51 G03

–25

100

125

TA = –55°C

TA = 25°C

VS = 3.3V, 0V

RL = 150Ω

VIN = 0.75V

RL = ∞

GND = 0V

VS = 5V, 0V

VOUT = 2.5V

TA = 125°C

TA = –55°C

TA = 25°C

TA = 125°C

5V/3.3V TYPICAL PERFOR A CE CHARACTERISTICS

VEE (Pin 5) = 0V (LT6550), GND (Pin 5) = 0V (LT6551)

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