OPA2631 Datasheet, PDF (7/18 Pages) Burr-Brown (TI) – Dual, Low Power, Single-Supply OPERATIONAL AMPLIFIER

TYPICAL XPERFORMANCE CURVES: V_S =+5V (Cont.)
At T_A = 25°C, G = +2, R_F = 750Ω, and R_L = 150Ω to V_S /2, unless otherwise noted (see Figure 1).
TWO-TONE, 3rd-ORDER
INTERMODULATION SPURIOUS
–30
f_O = 10MHz
–40
–50
–60
–70
f_O = 5MHz
–80
f_O = 1MHz
–90
Load Power at
Matched 50Ω Load
–16 –14 –12 –10 –8 –6 –4 –2 0
Single-Tone Load Power (dBm)
80
75
70
65
60
55
50
45
40
35
30
100
CMRR AND PSRR vs FREQUENCY
CMRR
PSRR
1K
10K
100K
1M
10M
Frequency (Hz)
INPUT NOISE DENSITY vs FREQUENCY
100
10
Voltage Noise, e_ni = 6.0nV/√Hz
Current Noise, i_ni = 1.9pA/√Hz
1
100
1K
10K
100K
1M
10M
Frequency (Hz)
OPEN-LOOP GAIN AND PHASE
100
90
80
Open-Loop Phase
70
60 _{Open-Loop Gain}
50
40
30
20
10
0
–10
–20
1K
10K 100K
1M
10M 100M
Frequency (Hz)
0
–30
–60
–90
–120
–150
–180
–210
–240
–270
–300
–330
–360
1G
FREQUENCY RESPONSE vs CAPACITIVE LOAD
2
1
C_L =1000pF
R_S = 10Ω
C_L = 10pF
R_S = 249Ω
0
–1
–2
–3
–4
–5
1/2
OPA2631
R_S
–6
V_O
C_L
1kΩ
C_L = 100pF
R_S = 35.7Ω
–7
–8
1
+V_S/2
10
100
300
Frequency (MHz)
1000
RECOMMENDED R_S vs CAPACITIVE LOAD
100
10
1
1
10
100
1000
Capacitive Load (pF)
OPA2631
7
SBOS067A