UTC4052(Old_V) Просмотр технического описания (PDF) - Unisonic Technologies
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UTC4052 Datasheet PDF : 9 Pages
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UTC 4052
700
600
500
400
300
TA=125℃
200
25℃
100
-55℃
0
-10 -8.0 -6.0 -4.0 -2.0 0 0.2 4.0 6.0 8.0 10
Vin,INPUT VOLTAGE (VOLTS)
Figure12.VDD=2.5V,VEE=-2.5V
CMOS
350
TA=25℃
300
250
VDD=2.5V
200
150
5.0V
100
7.5V
50
0
-10 -8.0 -6.0 -4.0 -2.0 0 0.2 4.0 6.0 8.0 10
Vin, INPUT VOLTAGE (VOLTS)
Figure13 Comparison at 25℃,VDD=-VEE
Figure A illustrates use of the on–chip level converter detailed in Figures 2. The 0 ~ 5 V Digital Control
signal is used to directly control a 9 Vp–p analog signal.
The digital control logic levels are determined by VDD and VSS. The VDD voltage is the logic high voltage; the VSS
voltage is logic low. For the example, VDD = + 5 V = logic high at the control inputs; VSS = GND = 0 V = logic low.
The maximum analog signal level is determined by VDD and VEE. The VDD voltage determines the maximum
recommended peak above VSS. The VEE voltage determines the maximum swing below VSS. For the example, VDD –
VSS = 5 V maximum swing above VSS; VSS – VEE = 5 V maximum swing below VSS. The example shows a ± 4.5 V
signal which allows a 1/2 volt margin at each peak. If voltage transients above VDD and/or below VEE are anticipated
on the analog channels, external diodes (Dx) are recommended as shown in Figure B. These diodes should be small
signal types able to absorb the maximum anticipated current surges during clipping.
The absolute maximum potential difference between VDD and VEE is 18.0 V. Most parameters are specified up to
15 V which is the recommended maximum difference between VDD and VEE.
Balanced supplies are not required. However, VSS must be greater than or equal to VEE. For example, VDD = + 10
V, VSS = + 5 V, and VEE – 3 V is acceptable. See the Table below.
+5V
-5V
VDD
Vss
VEE
+5V
EXTERNAL
CMOS
DIGITAL
CIRCUITRY
9 Vp-p
SW ITCH
ANALOG SIGNAL I/O
COMMON 9 Vp-p
4052 O/I ANALOG SIGNAL
0 ~ 5V DIGITAL
INHIBIT,
A,B,C
CONTROL SIGNALS
Figure A. Application Example
+4.5V
GND
-4.5V
UTC UNISONIC TECHNOLOGIES CO., LTD.
8
QW-R502-013,A
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