Datasheet

ELECTRICAL CHARACTERISTICS: V
S
= ± 5V
VCA824
www.ti.com ....................................................................................................................................... SBOS394C – NOVEMBER 2007 – REVISED DECEMBER 2008
At A
VMAX
= +10V/V, V
G
= +1V, R
F
= 402 Ω , R
G
= 80 Ω , and R
L
= 100 Ω , unless otherwise noted.
VCA824
MIN/MAX OVER
TYP 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
Small-Signal Bandwidth A
VMAX
= +2V/V, V
G
= +1V , V
O
= 500mV
PP
710 MHz typ C
A
VMAX
= +10V/V, V
G
= +1V, V
O
= 500mV
PP
420 MHz typ C
A
VMAX
= +40V/V, V
G
= +1V, V
O
= 500mV
PP
170 MHz typ C
Large-Signal Bandwidth A
VMAX
= +10V/V, V
G
= +1V, V
O
= 4V
PP
320 MHz typ C
Gain Control Bandwidth V
O
= 200mV
PP
330 240 235 235 MHz min B
Bandwidth for 0.1dB Flatness A
VMAX
= +10V/V, V
G
= +1V, V
O
= 2V
PP
135 MHz typ C
Slew Rate A
VMAX
= +10V/V, V
G
= +1V, V
O
= 4V Step 2500 1800 1700 1700 V/ µ s min B
Rise-and-Fall Time A
VMAX
= +10V/V, V
G
= +1V, V
O
= 4V Step 1.5 1.8 1.9 1.9 ns max B
Settling Time to 0.01% A
VMAX
= +10V/V, V
G
= +1V, V
O
= 4V Step 11 ns typ C
Harmonic Distortion
2nd-Harmonic V
O
= 2V
PP
, f = 20MHz -66 – 64 – 64 – 64 dBc min B
3rd-Harmonic V
O
= 2V
PP
, f = 20MHz -63 – 61 – 61 – 61 dBc min B
Input Voltage Noise f > 100kHz 6 nV/ √ Hz typ C
Input Current Noise f > 100kHz 2.6 pA/ √ Hz typ C
GAIN CONTROL
Gain Error A
VMAX
= +10V/V, V
G
= 1V ± 0.1 ± 0.4 ± 0.5 ± 0.6 dB max A
Gain Deviation A
VMAX
= +10V/V, 0 < V
G
< 1 ± 0.05 ± 0.3 ± 0.34 ± 0.37 dB max A
Gain Deviation A
VMAX
= +10V/V, -0.8 < V
G
< 1 ± 1.06 ± 1.9 ± 2.1 ± 2.2 dB max A
Gain at V
G
= – 0.9V Relative to max gain – 26 – 24 – 24 – 23 dB max A
Gain Control Bias Current 22 30 35 37 µ A max A
Average Gain Control Bias Current ± 100 ± 100 nA/ ° C max B
Drift
Gain Control Input Impedance 1.5 || 0.6 M Ω || pF typ C
DC PERFORMANCE
Input Offset Voltage A
VMAX
= +10V/V, V
CM
= 0V, V
G
= 1V ± 4 ± 17 ± 17.8 ± 19 mV max A
Average Input Offset Voltage Drift A
VMAX
= +10V/V, V
CM
= 0V, V
G
= 1V ± 30 ± 30 µ V/ ° C max B
Input Bias Current A
VMAX
= +10V/V, V
CM
= 0V, V
G
= 1V 19 25 29 31 µ A max A
Average Input Bias Current Drift A
VMAX
= +10V/V, V
CM
= 0V, V
G
= 1V ± 90 ± 90 nA/ ° C max B
Input Offset Current A
VMAX
= +10V/V, V
CM
= 0V, V
G
= 1V ± 0.5 ± 2.5 ± 3.2 ± 3.5 µ A max A
Average Input Offset Current Drift A
VMAX
= +10V/V, V
CM
= 0V, V
G
= 1V ± 16 ± 16 nA/ ° C max B
Max Current Through Gain Resistance ± 2.6 ± 2.55 ± 2.55 ± 2.5 mA max B
INPUT
Most Positive Common-Mode Input R
L
= 100 Ω +1.6 +1.6 +1.6 +1.6 V min A
Voltage
Most Negative Common-Mode Input R
L
= 100 Ω – 2.1 – 2.1 – 2.1 – 2.1 V max A
Voltage
Common-Mode Rejection Ratio V
CM
= ± 0.5V 80 65 60 60 dB min A
Input Impedance
Differential 1 || 1 M Ω || pF typ C
Common-Mode 1 || 2 M Ω || pF 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 tested specifications.
(3) Junction temperature = ambient at low temperature limit; junction temperature = ambient +23 ° C at high temperature limit for over
temperature specifications.
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