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參數資料
| 型號： | ADCMP603 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Rail-to-Rail, Very Fast, 2.5 V to 5.5 V, Single-Supply TTL/CMOS Comparator |
| 中文描述： | 軌到軌，速度非常快，2.5 V至5.5 V，單電源TTL / CMOS電比較 |
| 文件頁數： | 12/16頁 |
| 文件大小： | 267K |
| 代理商： | ADCMP603 |
ADCMP603
The ADCMP603 comparator offers a programmable hysteresis
feature that can significantly improve 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, stable manner. Leaving the LE/HYS pin
disconnected or driving it high removes the hysteresis. The
maximum hysteresis that can be applied using this pin is
approximately 160 mV. Figure 18 illustrates the amount of
hysteresis applied as a function of the external resistor value,
and Figure 9 illustrates hysteresis as a function of the current.
The hysteresis control pin appears as a 1.25 V bias voltage seen
through a series resistance of 7 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 HYS pin because it impairs the latch
function and often degrades the jitter performance of the device.
As described in the Using/Disabling the Latch Feature section,
hysteresis control need not compromise the latch function.
CROSSOVER BIAS POINT
In both op amps and comparators, rail-to-rail inputs of this type
have a dual front-end design. Certain devices are active near the
V
CC
rail and others are active near the V
EE
rail. At some predeter-
mined point in the common-mode range, a crossover occurs. At
this point, typically V
CC
/2, the direction of the bias current reverses
and the measured offset voltages and currents change.
The ADCMP603 slightly elaborates on this scheme. Crossover
points can be found at approximately 0.8 V and 1.6 V.
Rev. 0 | Page 12 of 16
0
50
150
250
350
450
550
650
H
HYSTERESIS RESISTOR (k
)
1
10
100
1000
V
CC
= 5.5V
V
CC
= 2.5V
Figure 18. Hysteresis vs. R
Control Resistor
HYS
MINIMUM INPUT SLEW RATE REQUIREMENT
With the rated load capacitance and normal good PC Board
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, more persistent oscillations are seen. This
oscillation is due to the high gain bandwidth of the comparator
in combination with feedback parasitics in the package and PC
board. In many applications, chattering is not harmful since the
first cycle of the oscillation occurs close to V
OS
.
相關PDF資料 |
PDF描述 |
|---|---|
| ADCMP603BCPZ-R2 | Rail-to-Rail, Very Fast, 2.5 V to 5.5 V, Single-Supply TTL/CMOS Comparator |
| ADCMP603BCPZ-R7 | Rail-to-Rail, Very Fast, 2.5 V to 5.5 V, Single-Supply TTL/CMOS Comparator |
| ADCMP604 | Rail-to-Rail, Very Fast, 2.5 V to 5.5 V, Single-Supply LVDS Comparators |
| ADCMP606 | Rail-to-Rail, Very Fast, 2.5 V to 5.5 V, Single-Supply CML Comparators |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| ADCMP603BCPZ-R2 | 功能描述:IC COMP TTL/CMOS 1CHAN 12-LFCSP RoHS:是 類別:集成電路 (IC) >> 線性 - 比較器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 類型:通用 元件數:1 輸出類型:CMOS，推挽式，滿擺幅，TTL 電壓 - 電源，單路/雙路(±):2.5 V ~ 5.5 V，±1.25 V ~ 2.75 V 電壓 - 輸入偏移（最小值）:5mV @ 5.5V 電流 - 輸入偏壓（最小值）:1pA @ 5.5V 電流 - 輸出（標準）:- 電流 - 靜態（最大值）:24µA CMRR, PSRR（標準）:80dB CMRR，80dB PSRR 傳輸延遲（最大）:450ns 磁滯:±3mV 工作溫度:-40°C ~ 85°C 封裝/外殼:6-WFBGA，CSPBGA 安裝類型:表面貼裝 包裝:管件 其它名稱:Q3554586 |
| ADCMP603BCPZ-R7 | 功能描述:IC COMP TTL/CMOS 1CHAN 12-LFCSP RoHS:是 類別:集成電路 (IC) >> 線性 - 比較器 系列:- 標準包裝:1 系列:- 類型:通用 元件數:1 輸出類型:CMOS，開路集電極，TTL 電壓 - 電源，單路/雙路(±):2.7 V ~ 5.5 V 電壓 - 輸入偏移（最小值）:7mV @ 5V 電流 - 輸入偏壓（最小值）:0.25µA @ 5V 電流 - 輸出（標準）:84mA @ 5V 電流 - 靜態（最大值）:120µA CMRR, PSRR（標準）:- 傳輸延遲（最大）:600ns 磁滯:- 工作溫度:-40°C ~ 85°C 封裝/外殼:SC-74A，SOT-753 安裝類型:表面貼裝 包裝:剪切帶 (CT) 產品目錄頁面:1268 (CN2011-ZH PDF) 其它名稱:*LMV331M5*LMV331M5/NOPBLMV331M5CT |
| ADCMP603BCPZ-WP | 功能描述:IC COMP TTL/CMOS 1CHAN 12-LFCSP RoHS:是 類別:集成電路 (IC) >> 線性 - 比較器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 類型:通用 元件數:1 輸出類型:CMOS，推挽式，滿擺幅，TTL 電壓 - 電源，單路/雙路(±):2.5 V ~ 5.5 V，±1.25 V ~ 2.75 V 電壓 - 輸入偏移（最小值）:5mV @ 5.5V 電流 - 輸入偏壓（最小值）:1pA @ 5.5V 電流 - 輸出（標準）:- 電流 - 靜態（最大值）:24µA CMRR, PSRR（標準）:80dB CMRR，80dB PSRR 傳輸延遲（最大）:450ns 磁滯:±3mV 工作溫度:-40°C ~ 85°C 封裝/外殼:6-WFBGA，CSPBGA 安裝類型:表面貼裝 包裝:管件 其它名稱:Q3554586 |
| ADCMP604 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Rail-to-Rail, Very Fast, 2.5 V to 5.5 V, Single-Supply LVDS Comparators |
| ADCMP604_07 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Rail-to-Rail, Very Fast, 2.5 V to 5.5 V, Single-Supply LVDS Comparators |
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