LTC6404_15 Datasheet, PDF (12/28 Pages) Linear Technology – 600MHz, Low Noise, High Precision Fully Differential Input/Output Amplifi er/Driver

LTC6404
LTC6404-2 TYPICAL PERFORMANCE CHARACTERISTICS
Small-Signal Frequency Response
vs Gain Setting Resistor Values
15
R_I = 100Ω, R_F = 200Ω
10
5
R_I = 200Ω, R_F = 402Ω
0
R_I = 499Ω, R_F = 1k
–5
V_S = 3V
–10
V_S = 5V
UNFILTERED OUTPUTS
–20
V_CM = V_OCM = MID-SUPPLY
T_A = 25°C
–25 ^{VS = 3V AND VS = 5V}
10
100
FREQUENCY (MHz)
1000
64042 G10
Small-Signal Frequency
Response vs Temperature
15 _{UNFILTERED DIFFERENTIAL}
10
OUTPUT
5
T_A = 25°C
0
FILTERED
–5
DIFFERENTIAL
OUTPUT
–10
T_A = 90°C
–15
T_A = 25°C
–20
T_A = –45°C
V_CM = V_OCM = MID-SUPPLY
–25 _{RI = 100Ω, RF = 200Ω}
–30 ^{VS = 3V}
10
100
FREQUENCY (MHz)
1000
64042 G13
Distortion vs Frequency
–40
–50
V_CM = V_OCM = MID-SUPPLY
V_S = 3V
–60 ^{VOUTDIFF = 2VP-P}
R_F = 100Ω, R_I = 200Ω
–70
DIFFERENTIAL INPUT
–80
SINGLE-ENDED INPUT
–90
HD2
–100
HD3
–110
–120
HD2
HD3
–130
–140
0.1
1
10
FREQUENCY (MHz)
100
64042 G16
Small-Signal Frequency
Response vs C_LOAD
25
20
C_LOAD = 10pF
15
C_LOAD = 5pF
10
5
C_LOAD = 0pF
0
UNFILTERED OUTPUTS
V_CM = V_OCM = MID-SUPPLY
–5
T_A = 25°C
R_I = 100Ω, R_F = 200Ω
–10
V_S = 3V AND V_S = 5V
R_LOAD = 200Ω,
(EACH OUTPUT TO GROUND)
–15
10
100
FREQUENCY (MHz)
1000
64042 G11
Small-Signal Frequency
Response vs Temperature
15
T_A = –45°C
10
5
T_A = 25°C
T_A = 90°C
0
UNFILTERED OUTPUTS
–5 ^VCM ^{= V}OCM ^{= MID-SUPPLY}
T_A = 25°C
R_I = 100Ω, R_F = 200Ω
–10 V_S = 3V AND V_S = 5V
R_LOAD = 200Ω,
(EACH OUTPUT TO GROUND)
–15
10
100
FREQUENCY (MHz)
1000
64042 G12
Large-Signal Step Response
1.5
V_OUTDIFF
1.0
0.5
V_INDIFF
0
–0.5
–1.0
V_CM = V_OCM = MID-SUPPLY
R_I = 100Ω, R_F = 200Ω
–1.5
0
3
6
9
TIME (ns)
12
15
64042 G14
Small-Signal Step Response
1.00
0.75
V_OUTDIFF
0.50
0.25
V_INDIFF
0
–0.25
–0.50
–0.75 _{VCM = VOCM = MID-SUPPLY}
R_I = 100Ω, R_F = 200Ω
–1.00
0
3
6
9
TIME (ns)
12
15
64042 G15
Distortion vs Input Common Mode
Voltage
–40
V_S = 3V
–50
V_CM = V_OCM = MID-SUPPLY
R_I = 100Ω, R_F = 200Ω
V_IN = 1V_P-P
–60 f_IN = 10MHz
DIFFERENTIAL INPUT
–70
SINGLE-ENDED INPUT
–80
HD2
–90
HD3
–100
–110
HD3
HD2
0
0.5 1.0 1.5 2.0 2.5
DC COMMON MODE INPUT (AT IN⁺ AND IN^– PINS) (V)
64042 G17
Distortion vs Output Amplitude
–40
V_S = 3V
–50 ^{VCM = VOCM = MID-SUPPLY}
R_I = 100Ω, R_F = 200Ω
–60 ^{VIN = DIFFERENTIAL INPUT}
f_IN = 10MHz
–70
–80
HD3
HD2
–90
–100
–110
–120
0
1
2
3
4
5
6
V_OUTDIFF (V_P-P)
64042 G18
6404f
12