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參數(shù)資料
| 型號： | DDC114YK-7 |
| 廠商： | DIODES INC |
| 元件分類： | 功率晶體管 |
| 英文描述： | NPN PRE-BIASED SMALL SIGNAL SOT-26 DUAL SURFACE MOUNT TRANSISTOR |
| 中文描述： | 70 mA, 50 V, 2 CHANNEL, NPN, Si, SMALL SIGNAL TRANSISTOR |
| 封裝： | PLASTIC PACKAGE-6 |
| 文件頁數(shù)： | 1/30頁 |
| 文件大?。?/td> | 389K |
| 代理商： | DDC114YK-7 |
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FEATURES
SINGLE-CHIP SOLUTION TO DIRECTLY
MEASURE FOUR LOW-LEVEL CURRENTS
HIGH PRECISION, TRUE INTEGRATING
FUNCTION
INTEGRAL LINEARITY:
±
0.01% of Reading
±
0.5ppm of FSR
VERY LOW NOISE: 5.2ppm of FSR
LOW POWER: 13.5mW/channel
ADJUSTABLE DATA RATE: Up to 3.125kSPS
PROGRAMMABLE FULL SCALE
DAISY-CHAINABLE SERIAL INTERFACE
APPLICATIONS
CT SCANNER DAS
PHOTODIODE SENSORS
INFRARED PYROMETER
LIQUID/GAS CHROMATOGRAPHY
Protected by US Patent #5841310
Dual
Switched
Integrator
Dual
Switched
Integrator
Σ
Modulator
Digital
Filter
Digital
Input/Output
FORMAT
DCLK
DCLK
DVALID
DOUT
DOUT
DIN
DIN
Control
IN3
IN1
VREF
DVDD
AVDD
DGND
AGND
Dual
Switched
Integrator
Dual
Switched
Integrator
Σ
Modulator
Digital
Filter
IN4
IN2
CLK
CONV
RANGE0
RANGE1
RANGE2
TEST
CLK_4X
HISPD/LOPWR
RESET
DESCRIPTION
The DDC114 is a 20-bit quad channel, current-input
analog-to-digital (A/D) converter. It combines both
current-to-voltage and A/D conversion so that four
low-level current output devices, such as photodiodes, can
be directly connected to its inputs and digitized.
For each of the four inputs, the DDC114 provides a
dual-switched integrator front-end. This allows for
continuous current integration: while one integrator is
being digitized by the onboard A/D converter, the other is
integrating the input current. Adjustable full-scale ranges
from 12pC to 350pC and adjustable integration times from
50
μ
s to 1s allow currents from fAs to
μ
As to be measured
with outstanding precision. Low-level linearity is
±
0.5ppm
of the full-scale range and noise is 5.2ppm of the full-scale
range.
Two modes of operation are provided. In Low-Power
mode, total power dissipation is only 13.5mW per channel
with a maximum data rate of 2.5kSPS. The High-Speed
mode supports data rates up to 3.125kSPS with a
corresponding dissipation of 18mW per channel.
The DDC114 has a serial interface designed for
daisy-chaining in multi-device systems. Simply connect
the output of one device to the input of the next to create
the chain. Common clocking feeds all the devices in the
chain so that the digital overhead in a multi-DDC114
system is minimal.
The DDC114 is a single-supply device using a +5V analog
supply and supporting a +2.7V to +5.25V digital supply.
Operating over the industrial temperature range of 40
°
C
to 85
°
C, the DDC114 is offered in a QFN-48 package.
DDC114
SBAS255A JUNE 2004 REVISED NOVEMBER 2004
Quad Current Input 20-Bit
ANALOG-TO-DIGITAL CONVERTER
www.ti.com
Copyright
2004, Texas Instruments Incorporated
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.
All trademarks are the property of their respective owners.
!
!
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DDC114YK-7-F | 制造商:Diodes Incorporated 功能描述:PREBIASED TRANSISTOR SOT-26 R1<>R2 NPN 300MW 10KOHMS 47KOHMS - Tape and Reel |
| DDC114YU | 制造商:DIODES 制造商全稱:Diodes Incorporated 功能描述:NPN PRE-BIASED SMALL SIGNAL SOT-363 DUAL SURFACE MOUNT TRANSISTOR |
| DDC114YU-7 | 功能描述:開關(guān)晶體管 - 偏壓電阻器 DUAL NPN SOT-363 RoHS:否 制造商:ON Semiconductor 配置: 晶體管極性:NPN/PNP 典型輸入電阻器: 典型電阻器比率: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 直流集電極/Base Gain hfe Min:200 mA 最大工作頻率: 集電極—發(fā)射極最大電壓 VCEO:50 V 集電極連續(xù)電流:150 mA 峰值直流集電極電流: 功率耗散:200 mW 最大工作溫度: 封裝:Reel |
| DDC114YU-7-F | 功能描述:開關(guān)晶體管 - 偏壓電阻器 DUAL NPN SOT-363 RoHS:否 制造商:ON Semiconductor 配置: 晶體管極性:NPN/PNP 典型輸入電阻器: 典型電阻器比率: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 直流集電極/Base Gain hfe Min:200 mA 最大工作頻率: 集電極—發(fā)射極最大電壓 VCEO:50 V 集電極連續(xù)電流:150 mA 峰值直流集電極電流: 功率耗散:200 mW 最大工作溫度: 封裝:Reel |
| DDC118 | 制造商:BB 制造商全稱:BB 功能描述:Octal Current Input 20-Bit Analog-To-Digital Converter |
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