|
|
PDF 7106 Data sheet ( Hoja de datos )
| Número de pieza | 7106 | |
| Descripción | A/D CONVERTERS | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de 7106 (archivo pdf) en la parte inferior de esta página. Total 18 Páginas | ||
|
No Preview Available !
UNISONIC TECHNOLOGIES CO., LTD
7106
3½ DIGIT, LCD DISPLAY, A/D
CONVERTERS
DESCRIPTION
The UTC 7106 is a high performance, low power,3½ digits A/D
converter. Included are seven segment decoders, display drivers, a
reference, and a clock.
The UTC 7106 is designed to interface with a liquid crystal
display (LCD) and includes a multiplexed backplane drive.
The UTC 7106 bring together a combination of high accuracy,
versatility, and true economy. It features auto zero to less than
10μV, zero drift of less than 1μV/°C, input bias current of 10pA
(Max), and rollover error of less than one count. True differential
inputs and reference are useful in all system, but give the designer
an uncommon advantage when measuring load cells, strain
gauges and other bridge type transducers. Finally, the true
economy of single power supply operation, enables a high
performance panel meter to be built with the addition of only 10
passive components and a display.
FEATURES
*Guaranteed Zero Reading for 0V Input On All Scales
*True Polarity At Zero for Precise Null Detection
*1pA Typical Input Current
*True Differential Input And Reference, Direct Drive
LCD Display
*Low Noise-Less than 15μVp-p
*On chip Clock and Reference
*Low Power Dissipation-Typically Less than 10mW
*No Additional Active Circuits Required
*Enhanced Display Stability
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
7106L-D40-T
7106G-D40-T
7106L-R40-R
7106G-R40-R
7106L-R40-T
7106G-R40-T
7106L-QM1-Y
7106G-QM1-Y
Package
DIP-40
SSOP-40
SSOP-40
QFP-44
CMOS IC
Packing
Tube
Tape Reel
Tube
Tray
www.unisonic.com.tw
Copyright © 2011 Unisonic Technologies Co., Ltd
1 of 18
QW-R502-018.E
1 page  
7106
TYPICAL APPLICATIONS AND TEST CIRCUIT
(LCD DISPLAY COMPONENTS SELECTED FOR 200mV FULL SCALE)
+-
9V
IN + -
R3
R1
R4
C4
R5
C1 C5
C2 R2 C3
DISPLAY
UTC 7106
DISPLAY
CMOS IC
C1=0.1μF
C2=0.47μF
C3=0.22μF
C4=100pF
C5=0.02μF
R1=24kΩ
R2=47kΩ
R3=91kΩR
4=1kΩ
R5=1MΩ
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 18
QW-R502-018.E
5 Page 
7106
CMOS IC
DETAILED DESCRIPTION(Cont.)
DIGITAL SECTION
Fig.5 show the digital section for the UTC 7106, respectively. In the UTC 7106, an internal digital ground is
generated from a 6V Zener diode and a large P-Channel source follower. This supply is made stiff to absorb the
relative large capacitive currents when the back plane(BP) voltage is switched. The BP frequency is the clock
frequency divided by 800. For three readings/sec, this is a 60Hz square wave with a nominal amplitude of 5V. The
segments are driven at the same frequency and amplitude and are in phase with BP when OFF, but out of phase
when ON. In all cases negligible DC voltage exists across the segments.
a
a fb
g
b ec
d
a
fb
g
ec
d
a
fb
g
ec
d
21
BACKPLANE
TYPICAL SEGMENT OUTPUT
V+
0.5mA
2mA
SEGMENT
OUTPUT
INTERNAL DIGITAL GROUND
LCD PHASE DRIVER
7 77
SEGMENT SEGMENT SEGMENT
DECODE DECODE DECODE
÷200
LATCH
1000,s
100,s
10,s
1, s
COUNTER COUNTER COUNTER COUNTER
TO SWITCH DRIVERS
FROM COMPARATOR OUTPUT
CLOCK
*
÷4
INTERNAL
DIGITAL
GROUND
LOGIC
CONTROL
VTH=1V
1
V+
6.2V
500Ω
37
TEST
* THREE INVERTERS ONE INVERTER SHOWN FOR CLARITY
40
39 38
V-
26
OSC 1
OSC 2
OSC 3
Fig.5 Digital Section
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
11 of 18
QW-R502-018.E
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet 7106.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| 7100 | T- Subminiature Lamps |  Gilway Technical Lamp |
| 7100MD9AV2BE | Toggle Switches |  ITT Industries |
| 7100MD9AV2BE | Rocker and Lever Handle Switches | ITT Industries |
| 7100MD9AV2QE | Toggle Switches | ITT Industries |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |