Datasheet
ELECTRICAL CHARACTERISTICS: V
S
= ± 50V
OPA454
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....................................................................................................................................... SBOS391A – DECEMBER 2007 – REVISED DECEMBER 2008
Boldface limits apply over the specified temperature range, T
A
= – 40 ° C to +85 ° C.
At T
P
(1)
= +25 ° C, R
L
= 4.8k Ω to mid-supply, V
CM
= V
OUT
= mid-supply, unless otherwise noted.
OPA454
PARAMETER CONDITIONS MIN TYP MAX UNIT
OFFSET VOLTAGE
Input Offset Voltage V
OS
I
O
= 0 ± 0.2 ± 4 mV
vs Temperature
(2)
dV
OS
/dT ± 1.6 ± 10 µ V/ ° C
vs Power Supply PSRR V
S
= ± 4V to ± 60V, V
CM
= 0V 25 100 µ V/V
INPUT BIAS CURRENT
Input Bias Current I
B
± 1.4 ± 100 pA
vs Temperature See Typical Characteristics
Input Offset Current I
OS
± 0.2 ± 100 pA
NOISE
Input Voltage Noise Density, f = 10Hz e
n
300 nV/ √ Hz
Input Voltage Noise Density, f = 10kHz 35 nV/ √ Hz
f = 0.01Hz to 10Hz 15 µ V
PP
Current Noise Density, f = 1kHz i
n
40 fA/ √ Hz
INPUT VOLTAGE RANGE
Common-Mode Voltage Range V
CM
Linear Operation (V – ) + 2.5 See Note
(3)
(V+) – 2.5 V
Common-Mode Rejection CMRR V
S
= ± 50V, – 25V ≤ V
CM
≤ +25V 100 146 dB
V
S
= ± 50V, – 45V ≤ V
CM
≤ +45V 100 147 dB
Over Temperature V
S
= ± 50V, – 25V ≤ V
CM
≤ +25V 80 88 dB
Over Temperature V
S
= ± 50V, – 45V ≤ V
CM
≤ +45V 72 82 dB
INPUT IMPEDANCE
Differential Ω || pF
10
13
|| 10
Common-Mode Ω || pF
10
13
|| 9
OPEN-LOOP GAIN
Open-Loop Voltage Gain
(4)
A
OL
(V – ) + 1V < V
O
< (V+) – 1V,
100 130 dB
R
L
= 49k Ω , I
O
= ± 1mA
(V – ) + 1V < V
O
< (V+) – 1V,
112 dB
R
L
= 49k Ω , I
O
= ± 1mA
(V – ) + 1V < V
O
< (V+) – 2V,
100 115 dB
R
L
= 4.8k Ω , I
O
= ± 10mA
(V – ) + 1V < V
O
< (V+) – 2V,
106 dB
R
L
= 4.8k Ω , I
O
= ± 10mA
(V – ) + 2V < V
O
< (V+) – 3V,
80 102 dB
R
L
= 1880 Ω , I
O
= ± 25mA
(V – ) + 2V < V
O
< (V+) – 3V,
84 dB
R
L
= 1880 Ω , I
O
= ± 25mA
(1) T
P
is the temperature of the leadframe die pad (exposed thermal pad) of the PowerPAD package.
(2) See typical characteristic curve, Offset Voltage Drift Production Distribution (Figure 14 ).
(3) Typical range is (V – ) + 1.5V to (V+) – 1.5V.
(4) Measured using low-frequency ( < 10Hz) ± 49V square wave. See typical characteristic curve, Current Limit vs Temperature (Figure 24 ).
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