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参数资料
| 型号： | DS1843D+TRL |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/8页 |
| 文件大小： | 0K |
| 描述： | IC CIRCUIT SAMPLE-N-HOLD 8-UDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 采样和保持 |
| 应用： | 光纤学网络 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-WFDFN |
| 供应商设备封装： | 8-uDFN（2x2） |
| 包装： | 带卷 (TR) |
DS1843
Fast Sample-and-Hold Circuit
_______________________________________________________________________________________
3
Note 1: All voltages are referenced to ground. Currents entering the IC are specified positive and currents exiting the IC are negative.
Note 2: Guaranteed by design.
Note 3: VOUT at the end of the 10s hold time is within specified level of VIN during the sample window; a 50 resistor connected in
series to both VINP and VINN (VINP - VINN = 1V). External capacitance to ground for both VINP and VINN is approximately 10pF.
Note 4: The sampling capacitor must be removed from the input signal before the input signal changes. Therefore, the SEN pin
must be low for a short period of time, tDEL, before the input changes.
Note 5: VOUT at the end of the hold time is within 1% of VIN during the sample window (VINP - VINN = 1V).
Note 6: Voltage step applied across VOUTP to VOUTN through a 5pF capacitor connected to each pin. This models the load presented
by an ADC while it is sampling the DS1843’s output. See the
Output Buffer section. Settled within 1% of initial voltage.
AC ELECTRICAL CHARACTERISTICS
(VCC = +2.97V to +5.5V, TA = -40°C to +85°C, unless otherwise noted.) (See the Timing Diagram.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Sample Time Minimum
tS
VOUT is within 0.4dB (Note 3)
300
ns
Delay Time Minimum
tDEL
(Note 4)
10
ns
Output Time
tOUT
Delay from SEN falling edge until valid
output at VOUT to 1% accuracy
2
s
Hold Time
tHOLD
(Note 5)
tOUT
100
s
1V step, DEN = high
2
Output Step Recovery Time
(Note 6)
tREC
3V step, DEN = high or low
3.5
s
Timing Diagram
VINP - VINN
VOUTP - VOUTN
EXTERNAL
ADC DATA
tADC:ST = EXTERNAL ADC SAMPLING TIME.
tADC:CT = EXTERNAL ADC CONVERSION TIME.
DEN IS CONNECTED TO VCC FOR DIFFERENTIAL OUTPUT.
NOTE: THIS TIMING DIAGRAM IS APPLICABLE FOR SINGLE-ENDED AND DIFFERENTIAL OUTPUT CONFIGURATIONS.
SEN
tS
tDEL
tOUT
tADC:ST
DATA VALID
tADC:CT
tREC
tHOLD
VOLTAGE INVALID
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1843K | 功能描述:放大器 IC 开发工具 Fast Sample & Hold Circuit RoHS:否 制造商:International Rectifier 产品:Demonstration Boards 类型:Power Amplifiers 工具用于评估:IR4302 工作电源电压:13 V to 23 V |
| DS1844 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:Quad Digital Potentiometer |
| DS1844_05 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:Quad Digital Potentiometer |
| DS1844-010 | 功能描述:数字电位计 IC RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
| DS1844-010+ | 功能描述:数字电位计 IC Quad RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
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