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ADC121S625CIMM Datasheet(PDF) 1 Page - Texas Instruments

No. de pieza ADC121S625CIMM
Descripción Electrónicos  ADC121S625 12-Bit, 50 ksps to 200 ksps, Differential Input, Micro Power Sampling A/D Converter
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Fabricante Electrónico  TI1 [Texas Instruments]
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ADC121S625CIMM Datasheet(HTML) 1 Page - Texas Instruments

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CS
VREF
GND
+IN
-IN
ADC121S625
+VA
SCLK
DOUT
ADC121S625
www.ti.com
SNAS294B – MAY 2005 – REVISED MARCH 2013
ADC121S625 12-Bit, 50 ksps to 200 ksps, Differential Input, Micro Power Sampling A/D
Converter
Check for Samples: ADC121S625
1
FEATURES
DESCRIPTION
The ADC121S625 is a 12-bit, 50 ksps to 200 ksps
2
True Differential Inputs
sampling
Analog-to-Digital
(A/D)
converter
that
Ensured Performance from 50ksps to 200ksps
features a fully differential, high impedance analog
External Reference
input
and
an
external
reference.
While
best
performance is achieved with reference voltage
High AC Common-Mode Rejection
between 500mV and 2.5V, the reference voltage can
SPI™/QSPI™/MICROWIRE/DSP Compatible
be varied from 100mV to 2.5V, with a corresponding
Serial Interface
resolution between 49µV and 1.22mV.
The output serial data is binary 2's complement, and
APPLICATIONS
is compatible with several standards, such as SPI™,
Automotive Navigation
QSPI™, MICROWIRE, and with many common DSP
Portable Systems
serial interfaces. The differential input, low power,
automatic power down, and small size make the
Medical Instruments
ADC121S625
ideal
for
direct
connection
to
Instrumentation and Control Systems
transducers in battery operated systems or remote
Motor Control
data acquisition applications.
Direct Sensor Interface
Operating from a single +5V supply, the normal
power consumption is reduced to a few nanowatts in
KEY SPECIFICATIONS
the power-down mode. The ADC121S625 is a pin-
compatible superior replacement for the ADS7817
Conversion Rate 50 to 200 ksps
and is available in the VSSOP-8 package. Operation
Offset Error 0.4 LSB (typ)
is ensured over the industrial temperature range of
Gain Error 0.05 LSB (typ)
−40°C to +85°C and clock rates of 800 kHz to 3.2
MHz.
INL ± 1 LSB (max)
DNL ± 0.75 LSB (max)
CMRR 82 dB (typ)
Power Consumption
Active, 200 ksps 2.25 mW (typ)
Active, 50 ksps 1.33 mW (typ)
Power Down 60 nW (typ)
Connection Diagram
Figure 1. 8-Lead VSSOP
See DGK Package
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2005–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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