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参数资料
| 型号： | ADC122S021 |
| 厂商： | National Semiconductor Corporation |
| 英文描述： | 2 Channel, 1 MSPS 12-Bit A/D Converter |
| 中文描述： | 2通道，1 MSPS的12位A / D转换器 |
| 文件页数： | 1/19页 |
| 文件大小： | 941K |
| 代理商： | ADC122S021 |
ADC122S101
2 Channel, 1 MSPS 12-Bit A/D Converter
General Description
The ADC122S101 is a low-power, two-channel CMOS 12-bit
analog-to-digital converter with a high-speed serial interface.
Unlike the conventional practice of specifying performance
at a single sample rate only, the ADC122S101 is fully speci-
fied over a sample rate range of 500 kSPS to 1 MSPS. The
converter is based on a successive-approximation register
architecture with an internal track-and-hold circuit. It can be
configured to accept one or two input signals at inputs IN1
and IN2.
The output serial data is straight binary, and is compatible
with several standards, such as SPI
, QSPI
, MICROW-
IRE, and many common DSP serial interfaces.
The ADC122S101 operates with a single supply that can
range from +2.7V to +5.25V. Normal power consumption
using a +3V or +5V supply is 4.3 mW and 13.1 mW, respec-
tively. The power-down feature reduces the power consump-
tion to just 0.14 μW using a +3V supply, or 0.32 μW using a
+5V supply.
The ADC122S101 is packaged in an 8-lead MSOP package.
Operation over the industrial temperature range of 40C to
+85C is guaranteed.
Features
n
Specified over a range of sample rates.
n
Two input channels
n
Variable power management
n
Single power supply with 2.7V - 5.25V range
Key Specifications
n
DNL
n
INL
n
SNR
n
Power Consumption
— 3V Supply
— 5V Supply
+0.9 / 0.6 LSB (typ)
±
0.64 LSB (typ)
72.4 dB (typ)
4.3 mW (typ)
13.1 mW (typ)
Applications
n
Portable Systems
n
Remote Data Acquisition
n
Instrumentation and Control Systems
Pin-Compatible Alternatives by Resolution and Speed
All devices are fully pin and function compatible.
Resolution
Specified for Sample Rate Range of:
200 to 500 kSPS
ADC122S051
ADC102S051
ADC082S051
50 to 200 kSPS
ADC122S021
ADC102S021
ADC082S021
500 kSPS to 1 MSPS
ADC122S101
ADC102S101
ADC082S101
12-bit
10-bit
8-bit
Connection Diagram
20125205
Ordering Information
Order Code
ADC122S101CIMM
ADC122S101CIMMX
ADC122S101EVAL
Temperature Range
40C to +85C
40C to +85C
Description
8-Lead MSOP Package
8-Lead MSOP Package, Tape & Reel
Evaluation Board
Top Mark
X24C
X24C
TRI-STATE
is a trademark of National Semiconductor Corporation
QSPI
and SPI
are trademarks of Motorola, Inc.
April 2005
A
2005 National Semiconductor Corporation
DS201252
www.national.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADC122S021CIMM | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| ADC122S021CIMM/NOPB | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| ADC122S021CIMMX | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| ADC122S021CIMMX/NOPB | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| ADC122S021EVAL | 功能描述:模数转换器 - ADC ADC122S021EVAL BOARD RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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