TC7116CPL Microchip Technology Inc., TC7116CPL Datasheet - Page 13

• Manufacturer Part Number: TC7116CPL
• Description: 3-1/2 DIGIT A/D, W/ HOLD
• Manufacturer: Microchip Technology Inc.

Specifications of TC7116CPL

• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

5.0
The TC7117/TC7117A are designed to operate from
±5V supplies. However, if a negative supply is not avail-
able, it can be generated with a TC7660 DC-to-DC con-
verter and two capacitors. Figure 5-1 shows this
application.
In selected applications, a negative supply is not
required. The conditions for using a single +5V supply
are:
1.
2.
3.
FIGURE 5-1:
Generation with TC7660
© 2006 Microchip Technology Inc.
The input signal can be referenced to the center
of the Common mode range of the converter.
The signal is less than ±1.5V.
An external reference is used.
10μF
TC7117/TC7117A POWER
SUPPLIES
+
2
4
TC7660
LED
Drive
8
3
+5V
10μF
+
Negative Power Supply
5
TC7117A
TC7117
(-5V)
V+
V-
35
26
V
REF
COM
GND
V
V
IN
IN
+
+
-
36
32
31
30
21
V
IN
+
–
TC7116/A/TC7117/A
DS21457C-page 13