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Número de pieza | CLM7660 | |
Descripción | DC-to-DC Voltage Converter | |
Fabricantes | Calogic LLC | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de CLM7660 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
No Preview Available ! CORPORATION
DC-to-DC
Voltage Converter
CLM7660
FEATURES
• Converts +5V Logic Supply to ±5 System
• Wide Input Voltage Range . . . . . . . . . . . . . . 1.5V to 10V
• Low Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . 500µA
• Efficient Voltage Conversion . . . . . . . . . . . . . . . . . 99.9%
• RS232 Negative Power Supply
• Low Cost, Simple to Use
APPLICATIONS
• A-to-D Converters
• D-to-A Converters
• Multiplexers
• Operational Amplifiers
PIN CONFIGURATION AND BLOCK DIAGRAM
DESCRIPTION
Calogic CLM7660 DC-to-DC converter will generate a negative
voltage from a positive source. The CLM7660 generates -5V
in +5V digital systems and with two external capacitors, the device
will convert a 1.5V to 10V input signal to a -1.5V to -10V level.
Applications include analog-to-digital converters, digital-to-analog
converters, operational amplifiers and multiplexers. Many of these
systems require negative supply voltages. The CLM7660 allows
+5V digital logic systems to incorporate these analog components
without an additional main power source. Lower part count, less real
estate, ease of use are just a few of the benefits of the CLM7660.
ORDERING INFORMATION
Part Package
CLM7660CP
CLM7660DY
8 Pin DIP
8 Pin SOIC
Temperature
-40oC to +85oC
-40oC to +85oC
NC 1
CAP + 2
GND 3
CAP – 4
CLM7660
8 V+
7 OSC
6
LOW
VOLTAGE (LV)
5 VOUT
NC = NO INTERNAL CONNECTION
1K-17
V + CAP +
82
OSC
7
6
LV
RC
OSCILLATOR
÷2
INTERNAL
VOLTAGE
REGULATOR
VOLTAGE-
LEVEL
TRANSLATOR
3
GND
4 CAP –
5
VO U T
LOGIC
NETWORK
1B-35
CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
1 page CORPORATION
CLM7660
FIGURE 6. INCREASED OUTPUT VOLTAGE BY CASCADING DEVICES
+
10µF
V+
18
27
CLM7660
36
4 "1" 5
10µF
DX
+
18
27
CLM7660
36
4 "n" 5
*NOTES:
1. VOUT = -n V+ for 1.5V ≤ V+ ≤ 6.5V.
2. VOUT = -n (V+ –VFDX) for 6.5V ≤ V+ ≤ 10V.
DX
VOUT *
10 µF
+
1K-07
FIGURE 7. EXTERNAL CLOCKING
+
10µF
V+
18
27
CLM7660
36
45
1kΩ
DX
1K-08
V+
CMOS
GATE
VOUT
10 µF
+
FIGURE 9. POSITIVE VOLTAGE MULTIPLIER
18
27
CLM7660
36
45
V+
D1
D2
+
C1
VOUT =
(2V+ ) - (2VF )
+
C2
1K-10
FIGURE 8. LOWERING OSCILLATOR FREQUENCY
+
C1
18
27
CLM7660
36
45
1K-09
V+
COSC
DX
VOUT
C2
+
FIGURE 10. COMBINED NEGATIVE CONVERTER
AND POSITIVE MULTIPLIER
V + VOUT
= –(V+– VF )
18
27
CLM7660
36
DX
C3
D1 +
+
C1
4
1J-49
5
+
C2
VOUT =
D2 (2V + ) – (2VF )
+
C4
CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
5 Page |
Páginas | Total 8 Páginas | |
PDF Descargar | [ Datasheet CLM7660.PDF ] |
Número de pieza | Descripción | Fabricantes |
CLM7660 | DC-to-DC Voltage Converter | Calogic LLC |
CLM7660CP | DC-to-DC Voltage Converter | Calogic LLC |
CLM7660DY | DC-to-DC Voltage Converter | Calogic LLC |
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