DataSheetWiki


ADC122S625 fiches techniques PDF

National Semiconductor - Dual 12-Bit - 50 kSPS to 200 kSPS - Simultaneous Sampling A/D Converter

Numéro de référence ADC122S625
Description Dual 12-Bit - 50 kSPS to 200 kSPS - Simultaneous Sampling A/D Converter
Fabricant National Semiconductor 
Logo National Semiconductor 





1 Page

No Preview Available !





ADC122S625 fiche technique
February 25, 2008
www.DataSheet4U.com
ADC122S625
Dual 12-Bit, 50 kSPS to 200 kSPS, Simultaneous Sampling
A/D Converter
General Description
The ADC122S625 is a dual 12-bit, 50 kSPS to 200 kSPS si-
multaneous sampling Analog-to-Digital (A/D) converter. The
analog inputs on both channels are sampled simultaneously
to preserve their relative phase information to each other. The
converter is based on a successive-approximation register
architecture where the differential nature of the analog inputs
is maintained from the internal track-and-hold circuits
throughout the A/D converter to provide excellent common-
mode signal rejection. The ADC122S625 features an external
reference that can be varied from 1.0V to VA.
The ADC122S625's serial data output is binary 2's comple-
ment and is compatible with several standards, such as
SPI™, QSPI™, MICROWIRE™, and many common DSP se-
rial interfaces. The serial clock (SCLK) and chip select bar
(CS) are shared by both channels.
Operating from a single 5V analog supply and a reference
voltage of 2.5V, the total power consumption while operating
at 200 kSPS is typically 8.6 mW. With the ADC122S625 op-
erating in power-down mode, the power consumption re-
duces to 2.6 µW. The differential input, low power consump-
tion, and small size make the ADC122S625 ideal for direct
connection to sensors in motor control applications.
Operation is guaranteed over the industrial temperature
range of −40°C to +105°C and clock rates of 1.6 MHz to 6.4
MHz. The ADC122S625 is available in a 10-lead MSOP pack-
age.
Features
True Simultaneous Sampling Differential Inputs
Guaranteed performance from 50 kSPS to 200 kSPS
External Reference
Wide Input Common-Mode Voltage Range
Single High-Speed Serial Data Output
Operating Temperature Range of −40°C to +105°C
SPI™/QSPI™/MICROWIRE™/DSP compatible Serial
Interface
Key Specifications
Conversion Rate
50 kSPS to 200 kSPS
INL
±1 LSB (max)
DNL
±0.95 LSB (max)
SNR
71 dBc (min)
THD
-72 dBc (min)
ENOB
11.25 bits (min)
Power Consumption at 200 kSPS
Converting, VA = 5V, VREF = 2.5V 8.6 mW (typ)
Power-Down, VA = 5V, VREF = 2.5V 2.6 µW (typ)
Applications
Motor Control
Power Meters/Monitors
Multi-Axis Positioning Systems
Instrumentation and Control Systems
Data Acquisition Systems
Medical Instruments
Direct Sensor Interface
Connection Diagram
TRI-STATE® is a trademark of National Semiconductor Corporation.
MICROWIRE™ is a trademark of National Semiconductor Corporation.
QSPI™ and SPI™ are trademarks of Motorola, Inc.
© 2008 National Semiconductor Corporation 300553
30055305
www.national.com

PagesPages 20
Télécharger [ ADC122S625 ]


Fiche technique recommandé

No Description détaillée Fabricant
ADC122S625 Dual 12-Bit - 50 kSPS to 200 kSPS - Simultaneous Sampling A/D Converter National Semiconductor
National Semiconductor
ADC122S625 Dual 12-Bit 50 kSPS to 200 kSPS Simultaneous Sampling A/D Converter (Rev. A) Texas Instruments
Texas Instruments

US18650VTC5A

Lithium-Ion Battery

Sony
Sony
TSPC106

PCI Bus Bridge Memory Controller

ATMEL
ATMEL
TP9380

NPN SILICON RF POWER TRANSISTOR

Advanced Semiconductor
Advanced Semiconductor


www.DataSheetWiki.com    |   2020   |   Contactez-nous  |   Recherche