OPA837 Datasheet, PDF (14/51 Pages) Texas Instruments – OPA837 Low-Power, Precision, 105-MHz, Voltage-Feedback Op Amp

OPA837
SBOS673 – SEPTEMBER 2017
www.ti.com
Typical Characteristics: V_S = 3.0 V (continued)
at V_S+ = 3.0 V, V_S– = 0 V, V_OUT = 2 V_PP, R_F = 0 Ω, R_L = 2 kΩ, G = 1 V/V, input and output referenced to mid-supply, and T_A ≈
25°C (unless otherwise noted)
-80
-90
-100
HD2, Gain = 1 V/V
HD3, Gain = 1 V/V
HD2, Gain = 1 V/V
HD3, Gain = 1 V/V
-100
-105
-110
-110
-120
-115
-120
-125
-130
-140
-150
10k
100k
1M
Frequency (Hz)
D031
See Figure 73, Figure 74, Table 2, and Table 3, V_O = 1 V_PP,
R_LOAD = 2 kΩ
-130
HD2, Gain = 1 V/V
HD3, Gain = 1 V/V
-135
HD2, Gain = 1 V/V
HD3, Gain = 1 V/V
-140
100
1k
Load (:)
D032
See Figure 73, Figure 74, Table 2, and Table 3, V_O = 2 V_PP,
f = 100 kHz, R_LOAD = 2 kΩ
Figure 31. Harmonic Distortion vs Frequency
-116
-118
-120
-122
-124
-126
HD2, Gain = 2 V/V
HD3, Gain = 2 V/V
HD2, Gain = 1 V/V
HD3, Gain = 1 V/V
-128
-130
-132
-134
-136
0.4 0.5 0.6 0.7 0.8 0.9
1
1.1
V_OPP (V)
D033
See Figure 73, Figure 74, Table 2, and Table 3, R_LOAD = 2 kΩ,
f = 100 kHz
Figure 32. Harmonic Distortion vs R_LOAD
-100
-105
-110
HD2, +Gain
HD3, +Gain
HD2, Gain
HD3, Gain
-115
-120
-125
-130
-135
-140
1
10
Gain Magnitude (V/V)
D034
See Figure 73, Figure 74, Table 2, and Table 3, R_LOAD = 2 kΩ,
f = 100 kHz, V_OUT = 2 V_PP
Figure 33. Harmonic Distortion vs Output Swing
-90
-95
-100
HD2
HD3
-105
-110
-115
-120
-125
-130
-135
-140
-145
-150
10k
100k
1M
Frequency (Hz)
D035
See Figure 86, gain = 1 V/V, V_OUT = 1 V_PP, R_LOAD = 2 kΩ
Figure 34. Harmonic Distortion vs Gain Magnitude
-80
-90
-100
HD2 (PGA 1)
HD3 (PGA 1)
HD2 (PGA 2)
HD3 (PGA 2)
-110
-120
-130
-140
-150
10k
100k
1M
Frequency (Hz)
D036
See Figure 87, gain of 1 V/V and 2 V/V, V_OUT = 1 V_PP,
R_LOAD = 2 kΩ
Figure 35. Harmonic Distortion as Active Mux
Figure 36. Harmonic Distortion as 1-Bit PGA
14
Submit Documentation Feedback
Product Folder Links: OPA837
Copyright © 2017, Texas Instruments Incorporated