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参数资料
| 型号： | AD8465WBCPZ-WP |
| 厂商： | Analog Devices Inc |
| 文件页数： | 4/16页 |
| 文件大小： | 0K |
| 描述： | IC COMPARATOR 1CH LVDS 12LFCSP |
| 标准包装： | 50 |
| 类型： | 带锁销 |
| 元件数： | 1 |
| 输出类型： | 补充型，LVDS，满摆幅 |
| 电压 - 电源，单路/双路(±)： | 2.5 V ~ 5.5 V |
| 电压 - 输入偏移（最小值）： | 2mV @ 2.5V |
| 电流 - 输入偏压（最小值）： | 5µA @ 2.5V |
| 电流 - 输出（标准）： | 50mA |
| 电流 - 静态（最大值）： | 3mA |
| CMRR, PSRR（标准）： | 50dB CMRR，60dB PSRR |
| 传输延迟（最大）： | 3ns |
| 磁滞： | 100µV |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 12-VFQFN 裸露焊盘，CSP |
| 安装类型： | 表面贴装 |
| 包装： | 托盘 - 晶粒 |
| 产品目录页面： | 764 (CN2011-ZH PDF) |
AD8465
Data Sheet
Rev. A | Page 12 of 16
CROSSOVER BIAS POINTS
The AD8465 comparator offers a programmable hysteresis
feature that significantly improves accuracy and stability.
Connecting an external pull-down resistor or a current source
from the LE/HYS pin to GND varies the amount of hysteresis
in a predictable and stable manner. Leaving the LE/HYS pin
disconnected or driving it high removes hysteresis. The maxi-
mum hysteresis that can be applied using this pin is approximately
160 mV. Figure 19 illustrates the amount of hysteresis applied as
a function of external resistor value. Figure 10 illustrates hysteresis
as a function of current.
Rail-to-rail inputs of this type, in both op amps and comparators,
have a dual front-end design. Certain devices are active near the
VCCI rail and others are active near the VEE rail. At some predeter-
mined point in the common-mode range, a crossover occurs.
At this point, normally VCCI/2, the direction of the bias current
reverses and there are changes in measured offset voltages and
currents.
MINIMUM INPUT SLEW RATE REQUIREMENT
With the rated load capacitance and normal good PCB design
practice, as discussed in the Optimizing Performance section,
these comparators should be stable at any input slew rate with
no hysteresis. Broadband noise from the input stage is observed
in place of the violent chattering seen with most other high
speed comparators. With additional capacitive loading or
poor bypassing, oscillation is observed. This oscillation is
due to the high gain bandwidth of the comparator in combina-
tion with feedback parasitics in the package and PCB. In many
applications, chattering is not harmful.
The hysteresis control pin appears as a 1.25 V bias voltage
seen through a series resistance of 70 kΩ ± 20% throughout the
hysteresis control range. The advantages of applying hysteresis
in this manner are improved accuracy, improved stability, reduced
component count, and maximum versatility. An external bypass
capacitor is not recommended on the LE/HYS pin because it
would likely degrade the jitter performance of the device and
impair the latch function. As described in the Using/Disabling
the Latch Feature section, hysteresis control need not compro-
mise the latch function.
0
50
100
150
200
250
50
100
150
200
250
300
350
400
450
500
HYSTERESIS RESISTOR (k)
H
Y
ST
E
R
ES
IS
(m
V)
VCC = 2.5V
VCC = 5.5V
07
95
8-
01
9
Figure 19. Hysteresis vs. RHYS Control Resistor
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD8468 | 制造商:AD 制造商全称:Analog Devices 功能描述:Rail-to-Rail, Fast, Low Power 2.5 V to 5.5 V, Single-Supply TTL/CMOS Comparator |
| AD8468WBKSZ | 制造商:Analog Devices 功能描述:IC COMPARATOR TTL/CMOS SC70-6 制造商:Analog Devices 功能描述:IC, COMPARATOR, TTL/CMOS, SC70-6 制造商:Analog Devices 功能描述:IC, COMPARATOR, TTL/CMOS, SC70-6; Comparator Type:Low Power; No. of Comparators:1; Response Time:60ns; Supply Voltage Range:2.5V to 5.5V; Amplifier Case Style:SC-70; No. of Pins:6; IC Output Type:Voltage; Output Compatibility:CMOS, ;RoHS Compliant: Yes |
| AD8468WBKSZ-R7 | 功能描述:IC COMPARATOR TTL/CMOS SC70-6 RoHS:是 类别:集成电路 (IC) >> 线性 - 比较器 系列:- 标准包装:1 系列:- 类型:通用 元件数:1 输出类型:CMOS，开路集电极，TTL 电压 - 电源，单路/双路(±):2.7 V ~ 5.5 V 电压 - 输入偏移（最小值）:7mV @ 5V 电流 - 输入偏压（最小值）:0.25µA @ 5V 电流 - 输出（标准）:84mA @ 5V 电流 - 静态（最大值）:120µA CMRR, PSRR（标准）:- 传输延迟（最大）:600ns 磁滞:- 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:剪切带 (CT) 产品目录页面:1268 (CN2011-ZH PDF) 其它名称:*LMV331M5*LMV331M5/NOPBLMV331M5CT |
| AD8468WBKSZ-RL | 功能描述:校验器 IC R-R InputTTL/CMOSOut Comparitor RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel |
| AD8469 | 制造商:AD 制造商全称:Analog Devices 功能描述:Fast, Rail-to-Rail, Low Power, 2.5 V to 5.5 V |
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