OPA380AID Datasheet, PDF (8/22 Pages) Texas Instruments – Precision, High-Speed Transimpedance Amplifier

OPA380
OPA2380
SBOS291G − NOVEMBER 2003 − REVISED SEPTEMBER 2007
TYPICAL CHARACTERISTICS: V_S = +2.7V to +5.5V (continued)
All specifications at T_A = +25°C, R_L = 2kΩ connected to V_S/2, and V_OUT = V_S/2, unless otherwise noted.
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SMALL−SIGNAL OVERSHOOT vs LOAD CAPACITANCE
50
2. 5 p F
45
10kΩ
40
+5V
35
30
R_S
O PA 38 0
V_OUT
25
C
R_P = 2kΩ
20
15
No R_S
10
5
−5V
R_S = 100Ω
0
10
100
1000
Load Capacitance (pF)
SMALL−SIGNAL OVERSHOOT vs LOAD CAPACITANCE
50
2.5pF
45
40
10kΩ
35
+2.5V
30
R_S
OPA380
25
V_{O U T}
20
C
R_F = 2kΩ
−2.5V
15
10
5
0
10
No R_S
100
R_S = 100Ω
1000
Load Capacitance (pF)
OVERLOAD RECOVERY
V_OUT
V_P = −5V
V_P = 0V
IIN
1.6 mA
3.2pF
5 0k Ω
+5V
V OUT
2 kΩ
VP
SMALL−SIGNAL STEP RESPONSE
R_L = 2kΩ
I_IN
Time (100ns/div)
LARGE−SIGNAL STEP RESPONSE
R_L = 2kΩ
2.5pF
10kΩ
2. 5V
2kΩ
− 2.5V
Time (100ns/div)
Time (100ns/div)
CHANNEL SEPARATION vs INPUT FREQUENCY
140
120
100
80
60
40
20
0
10 100 1k 10k 100k 1M 10M 100M
Frequency (Hz)
8