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ADC121S625CIMM Datasheet

  • ADC121S625CIMM

  • 12-Bit, 50 ksps to 200 ksps, Differential Input, Micro Power...

  • 1045.61KB

  • 20页

  • NSC

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ADC121S625 12-Bit, 50 ksps to 200 ksps, Differential Input, Micro Power Sampling A/D Converter
May 2005
ADC121S625
12-Bit, 50 ksps to 200 ksps, Differential Input, Micro
Power Sampling A/D Converter
General Description
The ADC121S625 is a 12-bit, 50 ksps to 200 ksps sampling
Analog-to-Digital (A/D) converter that features a fully differ-
ential, high impedance analog input and an external refer-
ence. While best performance is achieved with reference
voltage between 500mV and 2.5V, the reference voltage can
be varied from 100mV to 2.5V, with a corresponding resolu-
tion between 49碌V and 1.22mV.
The output serial data is binary 2鈥檚 complement, and is
compatible with several standards, such as SPI
鈩?/div>
, QSPI
鈩?/div>
,
MICROWIRE
鈩?/div>
, and with many common DSP serial inter-
faces. The differential input, low power, automatic power
down, and small size make the ADC121S625 ideal for direct
connection to transducers in battery operated systems or
remote data acquisition applications.
Operating from a single +5V supply, the normal power con-
sumption is reduced to a few nanowatts in the power-down
mode. The ADC121S625 is a pin-compatible superior re-
placement for the ADS7817 and is available in the MSOP-8
package. Operation is guaranteed over the industrial tem-
perature range of 鈭?0藲C to +85藲C and clock rates of 800 kHz
to 3.2 MHz.
Features
n
n
n
n
n
True Differential Inputs
Guaranteed performance from 50ksps to 200ksps
External Reference
High AC Common-Mode Rejection
SPI
鈩?/div>
/QSPI
鈩?/div>
/MICROWIRE
鈩?/div>
/DSP compatible Serial
Interface
Key Specifications
n
n
n
n
n
n
n
Conversion Rate
Offset Error
Gain Error
INL
DNL
CMRR
Power Consumption
鈥?Active, 200ksps
鈥?Active, 50ksps
鈥?Power Down
50 to 200 ksps
0.4 LSB (typ)
0.05 LSB (typ)
卤
1 LSB (max)
卤
0.75 LSB (max)
82 dB (typ)
2.25 mW (typ)
1.33 mW (typ)
60 nW (typ)
Applications
n
n
n
n
n
n
Automotive Navigation
Portable Systems
Medical Instruments
Instrumentation and Control Systems
Motor Control
Direct Sensor Interface
Connection Diagram
20132705
Ordering Information
Order Code
ADC121S625CIMM
ADC121S625CIMMX
ADC121S625EVAL
TRI-STATE
庐
is a trademark of National Semiconductor Corporation.
MICROWIRE
鈩?/div>
is a trademark of National Semiconductor Corporation.
QSPI
鈩?/div>
and SPI
鈩?/div>
are trademarks of Motorola, Inc.
Temperature Range
鈭?0藲C to +85藲C
鈭?0藲C to +85藲C
Description
8-Lead MSOP Package, 1000 Units Tape & Reel
8-Lead MSOP Package, 3500 Units Tape & Reel
Evaluation Board
Top Mark
X0AC
X0AC
漏 2005 National Semiconductor Corporation
DS201327
www.national.com

ADC121S625CIMM 产品属性

  • National Semiconductor (TI)

  • 1

  • 1

  • SAR

  • 200 KSPs

  • 12 bit

  • Voltage

  • Serial (3-Wire, SPI, QSPI, Microwire)

  • 72.9 dB

  • External

  • 5.5 V

  • 4.5 V

  • + 85 C

  • SMD/SMT

  • MSOP

  • Reel

  • - 40 C

  • 5 V

  • 1000

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