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參數(shù)資料
| 型號： | ADC121S625EVAL |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 12-Bit, 50 ksps to 200 ksps, Differential Input, Micro Power Sampling A/D Converter |
| 中文描述： | 12位，50 kSPS的200 ksps的，差動輸入，微功耗采樣A / D轉(zhuǎn)換器 |
| 文件頁數(shù)： | 1/20頁 |
| 文件大小： | 1049K |
| 代理商： | ADC121S625EVAL |
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 49μV and 1.22mV.
The output serial data is binary 2’s complement, and is
compatible with several standards, such as SPI
, QSPI
,
MICROWIRE
, 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 40C to +85C and clock rates of 800 kHz
to 3.2 MHz.
Features
n
True Differential Inputs
n
Guaranteed performance from 50ksps to 200ksps
n
External Reference
n
High AC Common-Mode Rejection
n
SPI
/QSPI
/MICROWIRE
/DSP compatible Serial
Interface
Key Specifications
n
Conversion Rate
n
Offset Error
n
Gain Error
n
INL
n
DNL
n
CMRR
n
Power Consumption
—
Active, 200ksps
—
Active, 50ksps
—
Power Down
50 to 200 ksps
0.4 LSB (typ)
0.05 LSB (typ)
±
1 LSB (max)
±
0.75 LSB (max)
82 dB (typ)
2.25 mW (typ)
1.33 mW (typ)
60 nW (typ)
Applications
n
Automotive Navigation
n
Portable Systems
n
Medical Instruments
n
Instrumentation and Control Systems
n
Motor Control
n
Direct Sensor Interface
Connection Diagram
20132705
Ordering Information
Order Code
ADC121S625CIMM
ADC121S625CIMMX
ADC121S625EVAL
Temperature Range
40C to +85C
40C to +85C
Description
Top Mark
X0AC
X0AC
8-Lead MSOP Package, 1000 Units Tape & Reel
8-Lead MSOP Package, 3500 Units Tape & Reel
Evaluation Board
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.
May 2005
A
2005 National Semiconductor Corporation
DS201327
www.national.com
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADC121S625EVAL/NOPB | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC ADC121S625 EVAL BOARD RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADC121S655 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:12-Bit, 200 kSPS to 500 kSPS, Differential Input, Micro Power A/D Converter |
| ADC121S655CIMM | 制造商:Texas Instruments 功能描述:A/D CONVERTER DIFF INPUT MSOP8 |
| ADC121S655CIMM/NOPB | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADC121S655CIMMX | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:12-Bit, 200 kSPS to 500 kSPS, Differential Input, Micro Power A/D Converter |
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