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參數(shù)資料
| 型號： | AS1977-T |
| 廠商： | ams |
| 文件頁數(shù)： | 11/18頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC COMPARATOR OPEN SOT23-5 |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 類型： | 通用 |
| 元件數(shù)： | 1 |
| 輸出類型： | CMOS，開路漏極，滿擺幅 |
| 電壓 - 電源，單路/雙路(±)： | 1.8 V ~ 5.5 V |
| 電壓 - 輸入偏移（最小值）： | 5mV @ 5V |
| 電流 - 輸入偏壓（最小值）： | 0.001µA @ 5V |
| 電流 - 輸出（標(biāo)準(zhǔn)）： | 50mA |
| 電流 - 靜態(tài)（最大值）： | 500nA |
| CMRR, PSRR（標(biāo)準(zhǔn)）： | 74dB CMRR，86.02dB PSRR |
| 傳輸延遲（最大）： | 18ns |
| 磁滯： | 3mV |
| 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： | 標(biāo)準(zhǔn)包裝 |
| 其它名稱： | AS1977-TDKR |
AS1976, AS1977
Ultra-Low Current, 1.8V Comparators
Dat a Sh eet
www.austriamicrosystems.com
Revision 1.01
1 - 17
1 General Description
The AS1976/AS1977 are very low-current comparators
that can operate beyond the rail voltages and are guar-
anteed to operate down to 1.8V
Low input bias current, current-limiting output circuitry,
and ultra-small packaging make these comparators
ideal for low-power 2-cell applications including power-
management and power-monitoring systems.
The comparators are available as the standard products
listed in Table 1.
The AS1976 push/pull output can sink or source current.
The AS1977 open-drain output can be pulled beyond
VCC to a maximum of 6V > VEE. This open-drain model
is ideal for use as a logic-level translator or bipolar-to-
unipolar converter.
Large internal output drivers provide rail-to-rail output
swings with loads up to 8mA. Both devices feature built-
in battery power-management and power-monitoring cir-
cuitry.
The AS1976/AS1977 are available in a 5-pin SOT23
package.
Figure 1. Block Diagram
2 Key Features
!
CMOS Push/Pull Output Sinks and Sources 8mA
(AS1976)
!
CMOS Open-Drain Output Voltage Extends Beyond
VCC (AS1977)
!
Ultra-Low Supply Current: 200nA
!
Internal Hysteresis: 3mV
!
3V-to5V Logiv-Level Translation
!
Guaranteed to Operate Down to +1.8V
!
Input Voltage Range Operates 200mV Beyond the
Rails
!
Crowbar Current-Free Switching
!
No Phase Reversal for Overdriven Inputs
!
5-pin SOT23 Package
3 Applications
The devices are ideal for battery monitoring/manage-
ment, mobile communication devices, laptops and
PDAs, ultra-low-power systems, threshold detectors/dis-
criminators, telemetry and remote systems, medical
instruments, or any other space-limited application with
low power-consumption requirements.
Table 1. Standard Products
Model
Output Type
Current
AS1976
Push/Pull
200nA
AS1977
Open-Drain
200nA
AS1976/
AS1977
–
+
5
VCC
3
IN+
1
OUT
2
VEE
4
IN-
ams
AG
Technical
content
still
valid
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