OPA2694ID Datasheet, PDF (10/28 Pages) Texas Instruments – Dual, Wideband, Low-Power, Current Feedback Operational Amplifier

OPA2694
SBOS320D − SEPTEMBER 2004 − REVISED APRIL 2013
TYPICAL CHARACTERISTICS: V_S = ±5V (continued)
R_F = 402Ω, R_L = 100Ω, and G = +2V/V, unless otherwise noted
www.ti.com
Differential Performance Test Circuit
+5V
V_I
R_T
1/2
OPA2694
R_G
R_F
R_G
R_F
R_L
400Ω
V_O
1/2
OPA2694
−5V
V_O
V_I
=
R_F
R_G
=
G_D
DIFFERENTIAL SMALL−SIGNAL
FREQUENCY RESPONSE
3
G_D = 10V/V G_D = 5V/V
0
R_F = 250Ω R_F = 330Ω
−3
−6
−9
−12
R_L = 400Ω
−15 ^{VO = 200mVPP}
G_D = 2V/V
R_F = 402Ω
G_D = 1V/V
R_F = 430Ω
0 50 100 150 200 250 300 350 400 450 500 550 600
Frequency (MHz)
DIFFERENTIAL LARGE−SIGNAL
FREQUENCY RESPONSE
9
V_O = 4V_PP
G_D = 2V/V
R_L = 400Ω
6
V_O = 2V_PP
3
V_O = 1V_PP
0
V_O = 8V_PP
−3
−6
0
50 100 150 200 250 300 350 400 450 500
Frequency (MHz)
DIFFERENTIAL DISTORTION
vs LOAD RESISTANCE
−60
G_D = 2V/V
−65 f = 5MHz
V_O = 4V_PP
−70
3rd Harmonic
−75
−80
−85
2nd Harmonic
−90
−95
10
100
1k
Resistance (Ω)
DIFFERENTIAL DISTORTION
vs FREQUENCY
−65
G_D = +2V/V
−70
R_L = 400Ω
V_O = 4V_PP
−75
3rd Harmonic
−80
−85
2nd Harmonic
−90
−95
1
10
100
Frequency (MHz)
DIFFERENTIAL DISTORTION
vs OUTPUT VOLTAGE
−60
−65
G_D = +2V/V
f = 5MHz
−70 R_L = 400Ω
−75
3rd Harmonic
−80
−85
−90
−95
−100
2nd Harmonic
−105
0.1
1
Output Voltage Swing (V_PP)
10 20
10