LTC1541IDD データシートの表示（PDF） - Linear Technology
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LTC1541IDD Datasheet PDF : 12 Pages
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LTC1541/LTC1542
TYPICAL PERFOR
A CE CHARACTERISTICS
Op Amp Open-Loop Gain and
Phase vs Frequency
120
0
100
–45
80
–90
PHASE
60
–135
40
GAIN
20
–180
–225
0 VCC = 5V
–20
VSS = GND
RLOAD = 100kΩ
–40
10
100
1k
10k
FREQUENCY (Hz)
100k
–270
–315
–360
1M
1541/42 TPC13
PI FU CTIO S
AMPOUT (Pin 1): Op Amp Output. The output can swing
from rail-to-rail while driving a capacitive load of up to
1000pF. The output can source and sink 0.7mA (min).
AMPIN– (Pin 2): Inverting Input of Op Amp. The input
common mode ranges from VSS to (VCC – 1.3V). The input
current is typically 10pA at 25°C.
AMPIN+ (Pin 3): Noninverting Input of Op Amp. The input
common mode ranges from VSS to (VCC – 1.3V). The input
current is typically 10pA at 25°C.
VSS (Pin 4): Negative Supply or Ground Connection.
COMPIN+ (Pin 5): Noninverting Input of Comparator. The
input common mode ranges from VSS to (VCC – 1.3V). The
input current is typically 10pA at 25°C.
REF (Pin 6) (LTC1541): Reference Output. VREF = 1.2V
±1% over industrial temperature range, and is also con-
nected to inverting comparator input internally. This de-
vice can source up to 2mA and sink up to 20µA. The output
can drive a bypass capacitor of up to 0.01µF without
oscillation.
COMPIN– (Pin 6) (LTC1542): Inverting Input of Compara-
tor. The input common mode ranges from VSS to
(VCC – 1.3V). The input current is typically 10pA at 25°C.
COMPOUT (Pin 7): Comparator Output. The output can
source 20mA and sink 5mA.
VCC (Pin 8): Positive Supply, 2.5V ≤ VCC ≤ 12.6V. The supply
bypass capacitors are not required if the supply impedance
is low. For single supply applications, it is a good general
practice to bypass VCC with a 0.1µF capacitor to ground.
BLOCK DIAGRA S
LTC1541
1 AMPOUT
OP AMP
VCC 8
COMPOUT 7
2 AMPIN–
3 AMPIN+
4 VSS
×1
COMP
REF 6
COMPIN+ 5
LTC1541 BD
8
LTC1542
1 AMPOUT
OP AMP
2 AMPIN–
3 AMPIN+
4 VSS
COMP
VCC 8
COMPOUT 7
COMPIN– 6
COMPIN+ 5
LTC1541 BD2
15412fd
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