Datasheet
ELECTRICAL CHARACTERISTICS: V
S
= +5V
OPA3695
www.ti.com
............................................................................................................................................... SBOS355A – APRIL 2008 – REVISED SEPTEMBER 2008
Boldface limits are tested at +25 ° C.
At R
F
= 348 Ω , R
L
= 100 Ω to 2.5V, and G = +8, unless otherwise noted.
OPA3695
TYP MIN/MAX OVER TEMPERATURE
0 ° C to – 40 ° C to MIN/ TEST
PARAMETER CONDITIONS +25 ° C +25 ° C
(2)
70 ° C
(3)
+85 ° C
(3)
UNITS MAX LEVEL
(1)
AC PERFORMANCE (see Figure 3 )
Small-signal bandwidth (V
O
= 0.5V
PP
) G = +1, R
F
= 750 Ω 850 MHz typ C
G = +2, R
F
= 487 Ω 725 MHz typ C
G = +8, R
F
= 348 Ω 395 380 MHz typ B
G = +16, R
F
= 162 Ω 275 MHz typ C
Bandwidth for 0.2dB gain flatness G = +2, V
O
< 0.5V
PP
, R
F
= 487 Ω 230 180 MHz min B
Peaking at a gain of +1 R
F
= 511 Ω , V
O
< 0.5V
PP
1.0 2.0 dB max B
Large-signal bandwidth G = +2, V
O
= 2V
PP
440 MHz typ C
G = +8, V
O
= 2V
PP
330 MHz typ C
Slew rate G = +2, V
O
= 2V step 1700 V/ µ s typ C
G = +8, V
O
= 2V step 1700 1300 V/ µ s min B
Rise-and-fall time G = +2, V
O
= 2V step 1.0 ns typ C
G = +8, V
O
= 0.5V step 1.0 ns typ C
G = +8, V
O
= 2V step 1.0 ns typ C
Settling time to 0.02% G = +8, V
O
= 2V step 16 ns typ C
Settling time to 0.1% G = +8, V
O
= 2V step 10 ns typ C
Harmonic distortion G = +8, f = 10MHz, V
O
= 2V
PP
2nd harmonic R
L
= 100 Ω to 2.5V – 62 – 58 dBc max B
R
L
≥ 500 Ω to 2.5V – 70 – 66 dBc max B
3rd harmonic R
L
= 100 Ω to 2.5V – 66 – 64 dBc max B
R
L
≥ 500 Ω to 2.5V – 65 – 63 dBc max B
2nd harmonic G = +2, f = 10MHz, R
L
= 100 Ω – 68 dBc typ C
3rd harmonic G = +2, f = 10MHz, R
L
= 100 Ω – 68 dBc typ C
Input voltage noise f > 1MHz 1.8 2 nV/ √ Hz max B
Noninverting input current noise f > 1MHz 18 19 pA/ √ Hz max B
Inverting input current noise f > 1MHz 22 24 pA/ √ Hz max B
DC PERFORMANCE
(4)
Open-loop transimpedance gain (Z
OL
) V
O
= 2.5V, R
L
= 100 Ω to 2.5V 70 40 38 36 k Ω min A
Input offset voltage V
CM
= 2.5V ± 0.3 ± 3.5 ± 4.0 ± 4.5 mV max A
Average offset voltage drift V
CM
= 2.5V ± 10 ± 15 µ V/ ° C max B
Noninverting input bias current V
CM
= 2.5V ± 5 ± 40 ± 45 ± 50 µ A max A
Average noninverting input bias current drift V
CM
= 2.5V ± 110 ± 170 nA/ ° C max B
Inverting input bias current V
CM
= 2.5V ± 5 ± 60 ± 70 ± 75 µ A max A
Average inverting input bias current drift V
CM
= 2.5V ± 120 ± 160 nA/ ° C max B
INPUT
Least positive input voltage
(5)
1.7 1.8 1.9 1.9 V max A
Most positive input voltage
(5)
3.3 3.2 3.1 3.1 V min A
Common-mode rejection ratio (CMRR) V
CM
= 2.5V 54 51 50 50 dB min A
Noninverting input impedance 280 || 1.2 k Ω || pF typ C
Inverting input resistance (R
I
) Open-loop 37 Ω typ C
(1) Test levels: (A) 100% tested at +25 ° C. Over temperature limits set by characterization and simulation. (B) Limits set by characterization
and simulation. (C) Typical value only for information.
(2) Junction temperature = ambient for +25 ° C specifications.
(3) Junction temperature = ambient at low temperature limits; junction temperature = ambient +21 ° C at high temperature limit for over
temperature specifications.
(4) Current is considered positive out of pin.
(5) Tested < 3dB below minimum specified CMRR at ± CMIR limits.
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