Datasheet

REV. D
–2–
AD745–SPECIFICATIONS
(@ +25C and 15 V dc, unless otherwise noted.)
Model AD745J AD745K
Conditions Min Typ Max Min Typ Max Unit
INPUT OFFSET VOLTAGE
1
Initial Offset 0.25 1.0 0.1 0.5 mV
Initial Offset T
MIN
to T
MAX
1.5 1.0 mV
vs. Temp. T
MIN
to T
MAX
22µV/°C
vs. Supply (PSRR) 12 V to 18 V
2
90 96 100 106 dB
vs. Supply (PSRR) T
MIN
to T
MAX
88 98 105 dB
INPUT BIAS CURRENT
3
Either Input V
CM
= 0 V 150 400 150 250 pA
Either Input
@ T
MAX
V
CM
= 0 V 8.8 5.5 nA
Either Input V
CM
= +10 V 250 600 250 400 pA
Either Input, V
S
= ±5 V V
CM
= 0 V 30 200 30 125 pA
INPUT OFFSET CURRENT V
CM
= 0 V 40 150 30 75 pA
Offset Current
@ T
MAX
V
CM
= 0 V 2.2 1.1 nA
FREQUENCY RESPONSE
Gain BW, Small Signal G = –4 20 20 MHz
Full Power Response V
O
= 20 V p-p 120 120 kHz
Slew Rate G = –4 12.5 12.5 V/µs
Settling Time to 0.01% 5 5 µs
Total Harmonic f = 1 kHz
Distortion
4
G = –4 0.0002 0.0002 %
INPUT IMPEDANCE
Differential 1 × 10
10
储20 1 × 10
10
储20 Ω储pF
Common Mode 3 × 10
11
储18 3 × 10
11
储18 Ω储pF
INPUT VOLTAGE RANGE
Differential
5
±20 ±20 V
Common-Mode Voltage +13.3, –10.7 +13.3, –10.7 V
Over Max Operating Range
6
–10 +12 –10 +12 V
Common-Mode
Rejection Ratio V
CM
= ±10 V 80 95 90 102 dB
T
MIN
to T
MAX
78 88 dB
INPUT VOLTAGE NOISE 0.1 to 10 Hz 0.38 0.38 1.0 µV p-p
f = 10 Hz 5.5 5.5 10.0 nV/√Hz
f = 100 Hz 3.6 3.6 6.0 nV/√Hz
f = 1 kHz 3.2 5.0 3.2 5.0 nV/√Hz
f = 10 kHz 2.9 4.0 2.9 4.0 nV/√Hz
INPUT CURRENT NOISE f = 1 kHz 6.9 6.9 fA/√Hz
OPEN LOOP GAIN V
O
= ±10 V
R
LOAD
≥ 2 kΩ 1000 4000 2000 4000 V/mV
T
MIN
to T
MAX
800 1800 V/mV
R
LOAD
= 600 Ω 1200 1200 V/mV
OUTPUT CHARACTERISTICS
Voltage R
LOAD
≥ 600 Ω +13, –12 +13, –12 V
R
LOAD
≥ 600 Ω +13.6, –12.6 +13.6, –12.6 V
T
MIN
to T
MAX
+12, –10 +12, –10 V
R
LOAD
≥ 2 kΩ±12 +13.8, –13.1 +13.8, –13.1 V
Current Short Circuit 20 40 20 40 mA
POWER SUPPLY
Rated Performance ±15 ±15 V
Operating Range ± 4.8 ±18 ± 4.8 ± 18 V
Quiescent Current 8 10.0 8 10.0 mA
TRANSISTOR COUNT # of Transistors 50 50
NOTES
1
Input offset voltage specifications are guaranteed after five minutes of operations at T
A
= 25°C.
2
Test conditions: +V
S
= 15 V, –V
S
= 12 V to 18 V and +V
S
= 12 V to +18 V, –V
S
= 15 V.
3
Bias current specifications are guaranteed maximum at either input after five minutes of operation at T
A
= 25°C. For higher temperature, the current doubles every 10°C.
4
Gain = –4, R
L
= 2 kΩ, C
L
= 10 pF.
5
Defined as voltage between inputs, such that neither exceeds ± 10 V from common.
6
The AD745 does not exhibit an output phase reversal when the negative common-mode limit is exceeded.
All min and max specifications are guaranteed.
Specifications subject to change without notice.
AD745 ELECTRICAL CHARACTERISTICS