Datasheet

OPA699
6
SBOS261D
www.ti.com
OUTPUT VOLTAGE LIMITERS
Maximum Limited Voltage +3.9 V typ C
Minimum Limited Voltage +1.1 V typ C
Default Limiter Voltage Limiter Pins Open V
CM
±1.1 V
CM
±0.9 V
CM
±0.8 V
CM
±0.7 V min B
Minimum Limiter Separation (V
H
– V
L
) 400 400 400 400 mV min B
Maximum Limit Voltage — V
CM
±1.8 V
CM
±1.8 V
CM
±1.8 V max B
Limiter Input Bias Current Magnitude
(6)
V
O
= 2.5V –15 µA typ C
Limiter Input Impedance 3.4 || 1 MΩ || pF typ C
Limiter Isolation
(7)
f = 5MHz –60 dB typ C
DC Performance in Limit Mode V
IN
= V
CM
±0.4V
Limiter Voltage Accuracy (V
O
– V
H
) or (V
O
– V
L
) ±15 ±30 ±35 ±40 mV max A
Op Amp Bias Current Shift
(4)
Linear ↔ Limited Operation 5 µA typ C
AC Performance in Limit Mode
Limiter Small-Signal Bandwidth V
IN
= ±0.4V, V
O
< 0.02V
PP
450 MHz typ C
Limiter Slew Rate
(8)
100 V/µs typ C
Limited Step Response
Overshoot V
IN
= V
CM
to V
CM
±0.4V Step 55 mV typ C
Recovery Time V
IN
= V
CM
±0.4V to V
CM
Step 3 ns typ C
Linearity Guardband
(9)
f = 5MHz, V
O
= 2V
PP
30 mV typ C
THERMAL CHARACTERISTICS
Temperature Range Specification, I –40 to +85 °C typ C
Thermal Resistance Junction-to-Ambient
D SO-8 125 °C/W typ C
NOTES: (1) Junction temperature = ambient temperature for low temperature limit and +25°C Test Level A specifications. Junction temperature = ambient
temperature +23°C at high temperature limit Test Level A specifications.
(2) Junction temperature = ambient at low temperature limit; junction temperature = ambient +1°C at high temperature limit for over-temperature
tested specifications.
(3) Test Levels: (A) 100% tested at +25°C. Over temperature limits by characterization and simulation. (B) Limits set by characterization and
simulation. (C) Typical value for information only.
(4) Current is considered positive out of node.
(5) CMIR tested as < 3dB degradation from minimum CMRR at specified limits.
(6) I
VH
(V
H
bias current) is negative, and I
VL
(V
L
bias current) is positive, under these conditions. See Note 3 and Figures 2 and 12.
(7) Limiter feedthrough is the ratio of the output magnitude to the sinewave added to V
H
(or V
L
) when V
IN
= 0.
(8) V
H
slew rate conditions are: V
IN
= V
CM
+0.4V, G = +6, V
L
= V
CM
–1.2V, V
H
= step between V
CM
+1.2V and V
CM
. V
L
slew rate conditions are similar.
(9) Linearity Guardband is defined for an output sinusoid (f = 5MHz, V
O
= V
CM
±1V
PP
) centered between the limiter levels (V
H
and V
L
). It is the
difference between the limiter level and the peak output voltage where SFDR decreases by 3dB (see Figure 8).
ELECTRICAL CHARACTERISTICS: V
S
= +5V (Cont.)
Boldface limits are tested at +25°C.
G = +6, R
F
= 750Ω, R
L
= 500Ω tied to V
CM
= +2.5V, V
L
= V
CM
–1.2V, and V
H
= V
CM
+1.2V, (see Figure 2 for AC performance only), unless otherwise noted.
OPA699ID
0 ° C to –40 ° C to MIN/ TEST
PARAMETER CONDITIONS +25°C +25°C
(1)
70°C
(2)
+85°C
(2)
UNITS MAX LEVEL
(3)
TYP MIN/MAX OVER TEMPERATURE