參數(shù)資料
型號: AS1973
廠商: ams
文件頁數(shù): 12/19頁
文件大?。?/td> 0K
描述: IC COMPARATOR DUAL 8-MSOP
標準包裝: 50
類型: 通用
元件數(shù): 2
輸出類型: CMOS,開路漏極,滿擺幅
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): 6mV @ 5.5V
電流 - 輸入偏壓(最小值): 1pA @ 5.5V
電流 - 靜態(tài)(最大值): 32µA
CMRR, PSRR(標準): 80dB CMRR,80dB PSRR
傳輸延遲(最大): 400ns
磁滯: ±3mV
工作溫度: -40°C ~ 85°C
封裝/外殼: 8-TSSOP,8-MSOP(0.118",3.00mm 寬)
安裝類型: 表面貼裝
包裝: 管件
產(chǎn)品目錄頁面: 804 (CN2011-ZH PDF)
AS1970 - AS1975
Low-Vo ltage Single/Dual/Quad Comparators
Dat a Sh eet
www.austriamicrosystems.com
Revision 1.02
1 - 18
1 General Description
The AS1970 - AS1975 are single/dual/quad compara-
tors that operate with supplies from 2.5 to 5.5V making
them perfect for all 3- and 5-volt applications. The com-
parators can also operate with dual supplies (±1.25 to
±2.75V), and require very little supply current (down to
8.5A) with minimal propagation delay (300ns).
Low input bias current (1.0pA, typ), low input offset volt-
age (0.5mV, typ), and internal hysteresis (3mV) make
these comparators ideal for low-power single-cell appli-
cations including power-management and power-moni-
toring systems.
The comparators are available as the standard products
listed in Table 1.
The AS1970/AS1972/AS1974 push/pull output can sink
or source current.
The AS1971/AS1973/AS1975 open-drain output can be
pulled beyond VCC to a maximum of 5.5V > VEE. These
open-drain versions are ideal for logic-level translators
or bipolar-to-unipolar converters.
Large internal output drivers allow Rail-to-Rail output
swings with loads of up to 8mA.
The AS1970/AS1971 are available in a 5-pin SOT23
package. The AS1972/AS1973 are available in a 8-pin
MSOP package. The AS1974/AS1975 are available in a
14-pin TSSOP package.
Figure 1. Block Diagrams
2 Key Features
!
CMOS Push/Pull Output Sinks and Sources 8mA
(AS1970/AS1972/AS1974)
!
CMOS Open-Drain Output Voltage Extends Beyond
VCC (AS1971/AS1973/AS1975)
!
Quiescent Supply Current: 8.5A per Comparator
!
Internal Hysteresis: 3mV
!
3V/5V Logic-Level Translation
!
Single-Supply Operation: 2.5 to 5.5V
!
Common-Mode Input Voltage Range Extends
250mV Above the Rails
!
Low Propagation Delay: 300ns
!
Minimized Overall Power Consumption
!
Supply Current @1MHz Switching Frequency: 80A
!
No Phase Reversal for Overdriven Inputs
!
Package Types:
- 5-pin SOT23 – AS1970/AS1971
- 8-pin MSOP – AS1972/AS1973
- 14-pin TSSOP – AS1974/AS1975
3 Applications
The devices are ideal for battery-powered systems,
mobile communication devices, zero-crossing detectors,
window comparators, level translators, threshold detec-
tors/discriminators, ground/supply-sensing applications,
IR receivers or any other space-limited application with
low power-consumption requirements.
Table 1. Standard Products
Model
Output Type
AS1970/AS1972/AS1974
Push/Pull
AS1971/AS1973/AS1975
Open-Drain
+
+
+
+
OUTA
INA+
INA-
VEE
VCC
OUTD
IND+
IND-
OUTC
INC+
INC-
OUTB
INB+
INB-
AS1974/AS1975
AS1972/AS1973
VEE
VCC
INA+
INA-
+
OUTA
INB+
INB-
+
OUTB
VCC
AS1970/AS1971
VEE
IN+
IN-
+
OUT
ams
AG
Technical
content
still
valid
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