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參數(shù)資料
| 型號(hào)： | AS1974 |
| 廠商： | AUSTRIAMICROSYSTEMS AG |
| 元件分類： | 電源管理 |
| 英文描述： | Quad Comparator, Push-Pull; Package Type: TSSOP-14 |
| 中文描述： | QUAD COMPARATOR, 7000 uV OFFSET-MAX, 400 ns RESPONSE TIME, PDSO14 |
| 封裝： | TSSOP-14 |
| 文件頁數(shù)： | 9/18頁 |
| 文件大小： | 752K |
| 代理商： | AS1974 |
www.austriamicrosystems.com
Revision 1.02
9 - 18
AS1970
Data Sheet
- Detailed Description
8 Detailed Description
The AS1970 - AS1975 are single/dual/quad low-power, comparators. The devices operate with a supply voltage range
between 2.5 and 5.5V while consuming down to 8.5μA per comparator. Their common-mode input voltage range
extends 0.25V beyond each rail.
Internal hysteresis ensures clean output switching, even with slow input signals. Large internal output drivers allow rail-
to-rail output swing with up to 8mA loads.
The output stage design minimizes supply-current surges while switching, virtually eliminating the power supply tran-
sients typical. The AS1970/AS1972/AS1974 push/pull output stage sinks and sources current, wheras the AS1971/
AS1973/AS1975 open-drain output stage can be pulled beyond V
CC
to an absolute maximum of 5.5V > V
EE
.
Input Stage
The input common-mode voltage range extends from -0.25V to (V
CC
+ 0.25V), and the comparators can operate at
any differential input voltage within this voltage range. Input bias (I
B
) current is 1.0pA (typ) if the input voltage is within
the common-mode voltage range.
Inputs are protected from over-voltage by internal ESD protection diodes connected to the supply rails. As the input
voltage exceeds the supply rails, these diodes become forward biased and begin to conduct and the bias currents
increase exponentially as the input voltage exceeds the supply rails.
Output Stage
The push/pull and open-drain output stages were designed to provide rail-to-rail operation with up to 8mA loads. Even
at loads of up to 8mA, the supply-current change during an output transition is extremely small
(see Figure 4 on page
6)
.
Figure 4
shows the minimal supply-current increase as the output switching frequency approaches 1MHz. This
characteristic eliminates the need for power-supply filter capacitors to reduce glitches created by comparator switching
currents.
Because of the unique design of its output stage, the AS1970 - AS1975 can dramatically increase battery life, even in
high-speed applications.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AS1975 | Quad Comparator, Open-Drain; Package Type: TSSOP-14 |
| AS1970-T | Single Comparator, Push-Pull; Package Type: SOT23-5 |
| AS1973-T | Dual Comparator. Open-Drain; Package Type: MSOP-8 |
| AS1971-T | Single Comparator, Open-Drain; Package Type: SOT23-5 |
| AS2504 | ECONOLINE: REC3-S_DRW(Z)/H4,H6 - Safety standards and approval: EN 60950 certified, rated for 250VAV (LVD test report)- Applied for Ul 1950 Component Recognised Certification- 3W DIP Package- 4kVDC & 6kVDC Isolation- Regulated Output- Continuous Short Circiut Protection Auto-Restarting |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AS1974-T | 功能描述:IC COMPARATOR QUAD P/P 14-TSSOP RoHS:是 類別:集成電路 (IC) >> 線性 - 比較器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:通用 元件數(shù):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(biāo)準(zhǔn)）:- 電流 - 靜態(tài)（最大值）:24µA CMRR, PSRR（標(biāo)準(zhǔn)）: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 |
| AS1975 | 功能描述:IC COMPARATOR QUAD 14-TSSOP RoHS:是 類別:集成電路 (IC) >> 線性 - 比較器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類型:帶電壓基準(zhǔn) 元件數(shù):4 輸出類型:開路漏極 電壓 - 電源，單路/雙路(±):2.5 V ~ 11 V，±1.25 V ~ 5.5 V 電壓 - 輸入偏移（最小值）:10mV @ 5V 電流 - 輸入偏壓（最小值）:- 電流 - 輸出（標(biāo)準(zhǔn)）:0.015mA @ 5V 電流 - 靜態(tài)（最大值）:8.5µA CMRR, PSRR（標(biāo)準(zhǔn)）:80dB CMRR，80dB PSRR 傳輸延遲（最大）:- 磁滯:- 工作溫度:0°C ~ 70°C 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 安裝類型:表面貼裝 包裝:管件 產(chǎn)品目錄頁面:1386 (CN2011-ZH PDF) |
| AS1975-T | 功能描述:IC COMPARATOR QUAD O-D 14-TSSOP RoHS:是 類別:集成電路 (IC) >> 線性 - 比較器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:通用 元件數(shù):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(biāo)準(zhǔn)）:- 電流 - 靜態(tài)（最大值）:24µA CMRR, PSRR（標(biāo)準(zhǔn)）: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 |
| AS1976 | 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:Ultra-Low Current, 1.8V Comparators |
| AS1976_1 | 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:Ultra-Low Current, 1.8V Comparators |
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