Datasheet

LT6550/LT6551
3
65501fa
The ● denotes the specifications which apply over the specified
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 3.3V, V
GND
= 0V; V
IN
= 0.75V LT6550 (Pins 1,2,3);
LT6551 (Pins 1,2,3,4). V
EE
= 0V LT6550 (Pin 5), unless otherwise noted.
3.3V ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the specified
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 5V, V
GND
= 0V; V
IN
= 1.25V LT6550 (Pins 1,2,3);
LT6551 (Pins 1,2,3,4). V
EE
= 0V LT6550 (Pin 5), unless otherwise noted.
5V ELECTRICAL CHARACTERISTICS
PARAMETER CONDITIONS MIN TYP MAX UNITS
Output Voltage Swing High V
IN
= 1.75V
No Load
● 3.0 3.2 V
R
L
= 150Ω ● 2.5 2.9 V
R
L
= 75Ω 2.0 2.5 V
PSRR V
CC
= 3V to 10V, V
IN
= 0.5V ● 40 48 dB
Minimum Supply Voltage (Note 6) ● 3V
Output Short-Circuit Current V
IN
= 1V, V
OUT
= 0V 35 50 mA
● 25 mA
Supply Current per Amplifier (Note 7) 8.5 10 mA
● 11 mA
Slew Rate (Note 8) R
L
= 150Ω, V
OUT
= 0.5V to 2.5V 140 250 V/µs
Measured from 1V to 2V
● 115 V/µs
Small Signal –3dB Bandwidth R
L
= 150Ω 90 MHz
Gain Flatness Less than 0.25dB 30 MHz
Gain Matching Any One Channel to Any Other Channel 0.15 dB
Settling Time to 3% R
L
= 150Ω, V
OUT
= 1V to 2.5V 20 ns
Settling Time to 1% R
L
= 150Ω, V
OUT
= 1V to 2.5V 30 ns
% Overshoot V
OUT
= 1V to 2.5V, R
L
= 150Ω 5%
Differential Gain R
L
= 150Ω, Black Level = 0.6V at Device Output 0.09 %
Differential Phase R
L
= 150Ω, Black Level = 0.6V at Device Output 0.09 Deg
Channel Separation Measured at 10MHz 60 dB
PARAMETER CONDITIONS MIN TYP MAX UNITS
Output Accuracy No Load, V
OUT
Ideal = 2.5V ● 30 70 mV
Output Voltage Matching Between Any Two Outputs ● 40 90 mV
Input Current ● 15 65 µA
Input Impedance, ∆V
IN
/∆I
IN
V
IN
= 0V to 2V ● 100 300 kΩ
Input Noise Voltage Density f = 100kHz (Note 10) 12 nV/√Hz
Input Noise Current Density f = 100kHz (Note 10) 8 pA/√Hz
Voltage Gain (Note 5) 0.25V ≤ V
IN
≤ 1.75V
No Load
● 1.9 2.1 V/V
R
L
= 150Ω ● 1.9 2.1 V/V
R
L
= 75Ω, 0.25V ≤ V
IN
≤ 1.25V, 0°C ≤ T
A
≤ 70°C (Only) ● 1.85 2.15 V/V
Output Voltage Swing Low V
IN
= –0.1V
No Load
● 10 30 mV
I
SINK
= 5mA ● 60 150 mV
I
SINK
= 10mA ● 90 200 mV
Output Voltage Swing High V
IN
= 2.6V
No Load
● 4.6 4.8 V
R
L
= 150Ω ● 3.5 4.1 V
R
L
= 75Ω, 0°C ≤ T
A
≤ 70°C (Only) ● 2.5 3.2 V