|
|
Número de pieza | ZN428J8 | |
Descripción | 8-BIT LATCHED INPUT D-A CONVERTER | |
Fabricantes | ETC | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de ZN428J8 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
No Preview Available ! THIS DOCUMENT IS FOR MAINTENANCE
PURPOSES ONLY AND IS NOT
RECOMMENDED FOR NEW DESIGNS
1 page ZN428
Fig.4 Analog output equivalent circuit
Fig.4 shows equivalent circuit of the output (ignoring
VOS). The output resistance R has a temperature coefficient
of +0.2% per °C.
The gain drift due to this is 0.2R % per °C.
R+RL
RL should be chosen as large as possible to make the
gain drift small. As an example if RL = 400kΩ then the gain
drift due to the T.C. of R for a 100°C change in ambient
temperature will be less than 0.2%. Alternatively the ZN428
can be buffered by an amplifier (see Operating Notes).
REFERENCE
(a) Internal Reference
The internal reference is an active bandgap circuit which
is equivalent to a 2.5V Zener diode with very low slope
impedance (Fig.5). A resistor (RREF), should be connected
between +VCC (pin 10) and pin 7. The recommended value
of 390Ω will supply a nominal reference current of (5.0-
2.5)/0.39 = 6.4mA. A stabilising/decoupling capacitor CREF =
1µF is required between pins 7 and 8 for internal reference
option, VREF OUT (pin 7) being connected to VREF IN (pin 6).
Fig.5 Internal voltage reference
5 Page |
Páginas | Total 9 Páginas | |
PDF Descargar | [ Datasheet ZN428J8.PDF ] |
Número de pieza | Descripción | Fabricantes |
ZN428J8 | 8-BIT LATCHED INPUT D-A CONVERTER | ETC |
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 |