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ADC081S051 Datenblatt(PDF) 1 Page - Texas Instruments

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Teilenummer ADC081S051
Bauteilbeschribung  ADC121S021 Single Channel, 50 to 200 ksps, 12-Bit A/D Converter
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Hersteller  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
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VA
CS
GND
SDATA
VIN
SCLK
ADC121S021
ADC121S021
www.ti.com
SNAS305I – JULY 2005 – REVISED JANUARY 2014
ADC121S021 Single Channel, 50 to 200 ksps, 12-Bit A/D Converter
Check for Samples: ADC121S021
1
FEATURES
DESCRIPTION
The ADC121S021 is a low-power, single channel
23
Specified Over a Range of Sample Rates.
CMOS 12-bit analog-to-digital converter with a high-
6-Lead WSON and SOT-23 Packages
speed
serial
interface.
Unlike
the
conventional
Variable Power Management
practice of specifying performance at a single sample
rate only, the ADC121S021 is fully specified over a
Single Power Supply with 2.7V - 5.25V Range
sample rate range of 50 ksps to 200 ksps. The
SPI™/QSPI™/MICROWIRE/DSP Compatible
converter is based upon a successive-approximation
register architecture with an internal track-and-hold
APPLICATIONS
circuit.
Portable Systems
The output serial data is straight binary, and is
Remote Data Acquisition
compatible with several standards, such as SPI™,
QSPI™, MICROWIRE, and many common DSP
Instrumentation and Control Systems
serial interfaces.
KEY SPECIFICATIONS
The ADC121S021 operates with a single supply that
can range from +2.7V to +5.25V. Normal power
DNL +0.45 / -0.25 LSB (typ)
consumption using a +3.6V or +5.25V supply is 1.5
INL +0.45 / -0.4 LSB (typ)
mW and 7.9 mW, respectively. The power-down
SNR 72.3 dB (typ)
feature reduces the power consumption to as low as
2.6 µW using a +5.25V supply.
Power Consumption
The ADC121S021 is packaged in 6-lead WSON and
3.6V Supply 1.5 mW (typ)
SOT-23 packages. Operation over the industrial
5.25V Supply 7.9 mW (typ)
temperature range of
−40°C to +85°C is ensured.
Table 1. Pin-Compatible Alternatives by Resolution and Speed(1)
Specified for Sample Rate Range of:
Resolution
50 to 200 ksps
200 to 500 ksps
500 ksps to 1 Msps
12-bit
ADC121S021
ADC121S051
ADC121S101
10-bit
ADC101S021
ADC101S051
ADC101S101
8-bit
ADC081S021
ADC081S051
ADC081S101
(1)
All devices are fully pin and function compatible.
Connection Diagram
Figure 1. WSON or SOT-23 Package
See Package Numbers NGF0006A, DBV0006A
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
TRI-STATE is a registered trademark of Texas Instruments.
3
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2005–2014, 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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