TC7106ACKW713 Microchip Technology, TC7106ACKW713 Datasheet - Page 15

• Manufacturer Part Number: TC7106ACKW713
• Description: IC ADC 3 1/2DGT LCD DVR 44-MQFP
• Manufacturer: Microchip Technology

Specifications of TC7106ACKW713

• Display Type: LCD
• Configuration: 7 Segment
• Digits Or Characters: A/D 3.5 Digits
• Current - Supply: 800µA
• Voltage - Supply: 9V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 44-MQFP, 44-PQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Interface: -

In some applications, a scale factor other than unity
may exist between a transducer output voltage and the
required digital reading. Assume, for example, a
pressure transducer output is 400 mV for 2000 lb/in
Rather than dividing the input voltage by two, the
reference voltage should be set to 200 mV. This
permits the transducer input to be used directly.
The differential reference can also be used when a
digital zero reading is required when V
zero. This is common in temperature measuring
instrumentation. A compensating offset voltage can be
applied between analog common and V
transducer output is connected between V
analog common.
The internal voltage reference potential available at
analog common will normally be used to supply the
converter’s
whenever the supply potential is greater than
approximately 7V. In applications where an externally
generated reference voltage is desired, refer to
Figure
© 2008 Microchip Technology Inc.
7-1.
reference.
This
potential
IN
is not equal to
is
IN
IN
-. The
+ and
stable
2
.
FIGURE 7-1:
TC7106/A/TC7107/A
TC7106A
TC7107A
V+
(a)
V
V
REF +
REF -
V+
6.8V
Zener
External Reference.
I
Z
TC7106A
TC7107A
Common
V+
(b)
V
V
REF +
REF
DS21455D-page 15
-
20 k Ω
V+
1.2V
Ref
6.8 k Ω