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PDF AK9240 Data sheet ( Hoja de datos )
| Número de pieza | AK9240 | |
| Descripción | AFE | |
| Fabricantes | AKM | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AK9240 (archivo pdf) en la parte inferior de esta página. Total 3 Páginas | ||
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[AK9240]
= Preliminary =
AK9240
AFE with Dual 12-Bit 1MSPS SAR ADC
General Description
The AK9240 is an Analog Front End with 12-bit 1MSPS A/D converter. It integrates a programmable
gain amplifier (PGA) that is able to select the input current and the input voltage realizing to control the
input range. An LED driver and auto power control circuits are also integrated, making the device
suitable for compact optical encoders. The AK9240 is housed in a space-saving 20-pin QFN package.
Features
Simultaneous Sampling 12-bit SAR A/D Converter
Sampling Rate: 1MSPS
Differential Inputs
Current Input or Voltage Input Selectable
PGA Function
LED driver
Automatic Power Control Circuit
Low Pass Filter
S/(N+D): 71dB (Typ.) at 10kHz Input.
INL: ±1.25LSB (Max.)
DNL: ±1.0LSB (Max.)
Power Consumption: 17 mA (Typ.) at Voltage Input Mode, fs= 1MSPS
Power Supply: 2.7 ~ 5.5V
Operational Temperature Range (Ta): -40 ~ 105ºC
Small Package: 20-pin QFN (3mm x 3mm)
LVDD LEDLPF
LEDREF
VREFP
VREFN
LEDO
AIN0P
AIN0N
AIN1P
AIN1N
LED
Driver
Auto Power
Controller
2.5V
Reference
Current
Input
Voltage
Input
Current
Input
Voltage
Input
Current
Input
Voltage
Input
Current
Input
Voltage
Input
PGA0
SAR
ADC0
PGA1
SAR
ADC1
Serial I/F
&
Control
Logic
VDD VSS DRVDD
RSTN
CSN
SCLK
SDO0
SDO1
SDATI
SDATO
Figure 1. AK9240 Block Diagram
Rev. 0.7
-1-
2015/7
1 page | ||
| Páginas | Total 3 Páginas | |
| PDF Descargar | [ Datasheet AK9240.PDF ] | |
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