- 您現在的位置：買賣IC網 > PDF目錄10646 > MAX977ESD+T (Maxim Integrated Products)IC COMPARATOR DUAL 14-SOIC PDF資料下載
參數資料
| 型號： | MAX977ESD+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數： | 4/17頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC COMPARATOR DUAL 14-SOIC |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,500 |
| 類型： | 通用 |
| 元件數： | 2 |
| 輸出類型： | CMOS，滿擺幅，TTL |
| 電壓 - 電源，單路/雙路(±)： | 2.7 V ~ 5.25 V |
| 電壓 - 輸入偏移（最小值）： | 2mV @ 5V |
| 電流 - 輸入偏壓（最小值）： | 0.1µA @ 5.25V |
| 電流 - 靜態(tài)（最大值）： | 500µA |
| CMRR, PSRR（標準）： | 90dB CMRR，90dB PSRR |
| 傳輸延遲（最大）： | 820ns |
| 磁滯： | 4mV |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 14-SOIC（0.154"，3.90mm 寬） |
| 安裝類型： | 表面貼裝 |
| 包裝： | 帶卷 (TR) |
MAX975/MAX977
powered up, the high-speed comparator is enabled,
the low-power comparator is disabled, and STAT goes
high, placing the MAX975 back into high-speed mode
(Figure 2).
Use an external capacitor, CSTO, to program the timeout
period required for the comparator to enter auto-
standby mode. Determine the capacitor required for a
particular timeout period by the relationship tASB =
10 x Cs, where C is in pF. For example, connecting a
0.1F capacitor to STO_ results in a timeout period of
1sec. The propagation delay of OUT_ when exiting auto
standby mode is equivalent to the low - power-mode
propagation delay. When STAT_ goes low, the low-
power comparator is disabled and the high-speed com-
parator is ready for operation. To bring the comparator
out of auto-standby mode without a transition occurring
on OUT_, toggle LP low-high-low. The LP pin is sensitive
to noise. If fall times larger than 10s are expected,
bypass LP with a 0.1F capacitor to GND. To disable
auto-standby mode, drive STO_ low or connect it to
ground. Note that driving STO_ low while in auto-
standby mode will not bring the comparator out of auto-
standby mode. Also, if driving STO_ with an open drain,
leakage must be less than 1nA. On power-up, the
device is in high-speed mode unless LP is high. The
MAX977 operates in the same manner as the MAX975.
Low-Power Mode
Driving LP high switches the MAX975/MAX977 to low-
power mode. In this mode, the supply current drops to
a maximum of 5
A, and propagation delay increases
typically to 480ns. The high-speed comparator is dis-
abled and the low-power comparator is enabled for
continuous operation. Return to high-speed mode by
driving LP low. The LP pin is sensitive to noise. If fall
times larger than 10s are expected, bypass LP with a
0.1F capacitor to GND. The logic state and sink/
source capabilities of OUT_ remain unchanged in low-
power mode.
Input-Stage Circuitry
The MAX975/MAX977 input common-mode range is
from -0.2V to (VCC - 1.2V). But the voltage range for
each comparator input extends to both VCC and GND
rails. The output remains in the correct logic state while
one or both of the inputs are within the common-mode
range. If both input levels are out of the common-mode
range, input-stage current saturation occurs and the
output becomes unpredictable.
Single/Dual, +3V/+5V Dual-Speed
Comparators with Auto-Standby
12
______________________________________________________________________________________
tPWD
tASB
tASD
tPD-
tPD+
tLPSH
tASBE
tLPCD
tLPE
tHSE
VCC
VOL
VOH
VOS
DIFFERENTIAL
INPUT
VOLTAGE
OUT_
STAT_
ICC (TYP)
LP
0V
300
A
3
A
tASCD
VCC
A
Figure 2. Timing Diagram
相關PDF資料 |
PDF描述 |
|---|---|
| VE-JT4-MY-F1 | CONVERTER MOD DC/DC 48V 50W |
| VE-B12-IV-F3 | CONVERTER MOD DC/DC 15V 150W |
| MAX13081ECSA+ | IC TXRX RS485/422 8-SOIC |
| VI-B1B-MX-F1 | CONVERTER MOD DC/DC 95V 75W |
| MAX13052ESA+ | IC TRANSCEIVER CAN HS 8-SOIC |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX9787ETI+ | 功能描述:音頻放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| MAX9787ETI+T | 功能描述:音頻放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| MAX9788EBP+ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX9788EBP+T | 制造商:Maxim Integrated Products 功能描述:AUD AMP SPKR 1CH MONO 2.4W CLS-G 20UCSP - Tape and Reel |
| MAX9788ETI+ | 功能描述:音頻放大器 14VP-P Class G Cer Speaker Driver RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復。