OPA2604 Datasheet, PDF (11/12 Pages) Burr-Brown (TI) – Dual FET-Input, Low Distortion OPERATIONAL AMPLIFIER

I-Out DAC
C_OUT
C₁*
R₁
2kΩ
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OPA2604
R₂
2.94kΩ
C₂
2200pF
R₃
21kΩ
* C₁ =~
C_OUT
2π R₁ f_c
R₁ = Feedback resistance = 2kΩ
f_c = Crossover frequency = 8MHz
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OPA2604
V_O
C₃
470pF
Low-pass
2-pole Butterworth
f_–3dB = 20kHz
FIGURE 5. DAC I/V Amplifier and Low-Pass Filter.
7.87kΩ
–
V_IN
100pF
+
7.87kΩ
100kHz Input Filter
12
OPA2604
12
OPA2604
FIGURE 6. Differential Amplifier with Low-Pass Filter.
10kΩ
10kΩ
12
OPA2604
10kΩ
10kΩ
V_O
G=1
®
11
OPA2604