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| 型号： | MAX999EUK+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/16页 |
| 文件大小： | 0K |
| 描述： | IC COMP BEYOND-THE-RAILS SOT23-5 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 系列： | Beyond-the-Rails™ |
| 类型： | 通用 |
| 元件数： | 1 |
| 输出类型： | CMOS，TTL |
| 电压 - 电源，单路/双路(±)： | 2.7 V ~ 5.5 V |
| 电压 - 输入偏移（最小值）： | 1.5mV @ 5V |
| 电流 - 输入偏压（最小值）： | 15µA @ 5V |
| 电流 - 静态（最大值）： | 7mA |
| CMRR, PSRR（标准）： | 80dB CMRR，86.02dB PSRR |
| 传输延迟（最大）： | 7ns |
| 磁滞： | 3.5mV |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | SC-74A，SOT-753 |
| 安装类型： | 表面贴装 |
| 包装： | 标准包装 |
| 产品目录页面： | 1387 (CN2011-ZH PDF) |
| 其它名称： | MAX999EUK+TDKR |
Single/Dual/Quad, Ultra-High-Speed, +3V/+5V,
Beyond-the-Rails Comparators
10
Maxim Integrated
MAX961–MAX964/MAX997/MAX999
Output Stage Circuitry
The MAX961–MAX964/MAX997/MAX999 contain a cur-
rent-driven output stage, as shown in Figure 4. During an
output transition, ISOURCE or ISINK is pushed or pulled to
the output pin. The output source or sink current is high
during the transition, creating a rapid slew rate. Once the
output voltage reaches VOH or VOL, the source or sink
current decreases to a small value, capable of maintain-
ing the VOH or VOL in static condition. This decrease in
current conserves power after an output transition has
occurred.
One consequence of a current-driven output stage is a
linear dependence between the slew rate and the load
capacitance. A heavy capacitive load slows down the
voltage output transition.
Shutdown Mode
When SHDN is high, the MAX961/MAX963/MAX964/
MAX997 shut down. When shut down, the supply cur-
rent drops to 270A per comparator, and the outputs
become high impedance. SHDN has a high input
impedance. Connect SHDN to GND for normal opera-
tion. Exit shutdown with LE low; otherwise, the output is
indeterminate.
__________Applications Information
Circuit Layout and Bypassing
The MAX961–MAX964/MAX997/MAX999’s high band-
width requires a high-speed layout. Follow these layout
guidelines:
1) Use a PCB with a good, unbroken, low-inductance
ground plane.
2) Place a decoupling capacitor (a 0.1F ceramic sur-
face-mount capacitor is a good choice) as close to
VCC as possible.
3) On the inputs and outputs, keep lead lengths short
to avoid unwanted parasitic feedback around the
comparators. Keep inputs away from outputs. Keep
impedance between the inputs low.
4) Solder the device directly to the printed circuit board
rather than using a socket.
5) Refer to Figure 5 for a recommended circuit layout.
6) For slow-moving input signals, take care to prevent
parasitic feedback. A small capacitor (1000pF or
less) placed between the inputs can help eliminate
oscillations in the transition region. This capacitor
causes negligible degradation to tPD when the
source impedance is low.
Figure 4. Output Stage Circuitry
MAX961-MAX964
MAX997
MAX999
ISOURCE
Q, Q
VCC
GND
ISINK
Figure 5. MAX961 PCB Layout
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX999UKT | 制造商:MAXIM 功能描述:New |
| MAX-9H | 制造商:MINI 制造商全称:Mini-Circuits 功能描述:Active Mixer |
| MAXADCLITE# | 功能描述:数据转换 IC 开发工具 MAX11645 Eval Kit RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
| MAXADCLITE+ | 功能描述:数据转换 IC 开发工具 MAX11645 Eval Kit RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
| MAX-B550 | 制造商:SAMSUNG 制造商全称:Samsung semiconductor 功能描述:THREE-CD CHANGER MINI-COMPACT SYSTEM CD-R/RW PLAYBACK |
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