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7
AMC1301-Q1
www.ti.com.cn
ZHCSG74A –APRIL 2017–REVISED APRIL 2017
版权 © 2017, Texas Instruments Incorporated
Electrical Characteristics (continued)
Minimum and maximum specifications apply from T
A
= –40°C to +125°C, VDD1 = 3.0 V to 5.5 V, VDD2 = 3.0 V to 5.5 V,
VINP = –250 mV to +250 mV, and VINN = 0 V. Typical specifications are at T
A
= 25°C, VDD1 = 5 V, and VDD2 = 3.3 V
(unless otherwise noted).
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
ANALOG OUTPUT
Nominal gain 8.2
E
G
Gain error Initial, at T
A
= 25°C –0.3% ±0.05% 0.3%
TCE
G
Gain error drift –50 ±15 50 ppm/°C
Nonlinearity –0.03% ±0.01% 0.03%
Nonlinearity drift 1 ppm/°C
THD Total harmonic distortion f
IN
= 10 kHz –87 dB
Output noise
VINP = VINN = GND1, f
IN
= 0 Hz,
BW = 100 kHz
220 μV
RMS
SNR Signal-to-noise ratio
f
IN
= 1 kHz, BW = 10 kHz 80 84
dB
f
IN
= 10 kHz, BW = 100 kHz 71
PSRR Power-supply rejection ratio
vs VDD1, at dc –94
dB
vs VDD1, 100-mV and 10-kHz ripple –90
vs VDD2, at dc –100
vs VDD2, 100-mV and 10-kHz ripple –94
t
r
Rise time See 图 45 2.0 µs
t
f
Fall time See 图 45 2.0 µs
V
IN
to V
OUT
signal delay (50% – 10%) See 图 46, unfiltered output 0.7 2.0 µs
V
IN
to V
OUT
signal delay (50% – 50%) See 图 46, unfiltered output 1.6 2.6 µs
V
IN
to V
OUT
signal delay (50% – 90%) See 图 46, unfiltered output 2.5 3.0 µs
CMTI Common-mode transient immunity |GND1 – GND2| = 1 kV 15 kV/µs
V
CMout
Common-mode output voltage 1.39 1.44 1.49 V
Output short-circuit current ±13 mA
R
OUT
Output resistance on VOUTP or VOUTN < 0.2 Ω
BW Output bandwidth 190 210 kHz
V
FAILSAFE
Failsafe differential output voltage V
CM
≥ V
CMov
, or VDD1 missing –2.563 –2.545 V
POWER SUPPLY
I
DD1
High-side supply current
3.0 V ≤ VDD1 ≤ 3.6 V 5.0 6.9
mA
4.5 V ≤ VDD1 ≤ 5.5 V 5.9 8.3
I
DD2
Low-side supply current
3.0 V ≤ VDD2 ≤ 3.6 V 4.4 5.6
mA
4.5 V ≤ VDD2 ≤ 5.5 V 4.8 6.5
P
DD1
High-side power dissipation
3.0 V ≤ VDD1 ≤ 3.6 V 16.5 24.84
mW
4.5 V ≤ VDD1 ≤ 5.5 V 29.5 45.65
P
DD2
Low-side power dissipation
3.0 V ≤ VDD2 ≤ 3.6 V 14.52 20.16
mW
4.5 V ≤ VDD2 ≤ 5.5 V 24 35.75