參數(shù)資料
型號: MAX9031AUK+T
廠商: Maxim Integrated Products
文件頁數(shù): 6/9頁
文件大小: 0K
描述: IC COMPARATOR VOLT SGL SOT23-5
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 1
類型: 通用
元件數(shù): 1
輸出類型: CMOS,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): 1mV @ 5V
電流 - 輸入偏壓(最小值): 0.008µA @ 5V
電流 - 靜態(tài)(最大值): 55µA
CMRR, PSRR(標準): 100dB CMRR,100dB PSRR
傳輸延遲(最大): 228ns
磁滯: 4mV
工作溫度: -40°C ~ 125°C
封裝/外殼: SC-74A,SOT-753
安裝類型: 表面貼裝
包裝: 標準包裝
產(chǎn)品目錄頁面: 1391 (CN2011-ZH PDF)
其它名稱: MAX9031AUK+TDKR
MAX9030/MAX9031/MAX9032/MAX9034
Low-Cost, Ultra-Small, Single/Dual/Quad
Single-Supply Comparators
6
Maxim Integrated
Detailed Description
The MAX9030/MAX9031/MAX9032/MAX9034 are sin-
gle/dual/quad low-cost comparators. They have an
operating supply voltage from +2.5V to +5.5V when
operating from a single supply and from ±1.25V to
±2.75V when operating from dual power supplies, and
consume only 35A. Their common-mode input voltage
range extends from the negative supply to within 1.1V
of the positive supply. Internal hysteresis ensures clean
output switching, even with slow-moving input signals.
Shutdown Mode
The MAX9030 comparator comes with a power-saving
shutdown mode. When in shutdown, the supply current
drops from a typical 35A to 0.05A, and the outputs
become high impedance. SHDN has a high input imped-
ance and typically draws 0.1A when connected to VSS
or VDD. A maximum logic low voltage of 0.3V VDD
applied to SHDN places the device in the shutdown
mode. A minimum logic high voltage of 0.7V VDD
applied to SHDN will enable normal operation. To dis-
able shutdown, connect SHDN to VDD.
Applications Information
Adding Hysteresis
Hysteresis extends the comparator’s noise margin by
increasing the upper threshold and decreasing the
lower threshold. A voltage-divider from the output of the
comparator sets the trip voltage. Therefore, the trip volt-
age is related to the output voltage.
These comparators have 4mV internal hysteresis.
Additional hysteresis can be generated with two resis-
tors using positive feedback (Figure 1). Use the follow-
ing procedure to calculate resistor values:
Pin Description
PIN
MAX9030
MAX9031
MAX9032
MAX9034
NAME
FUNCTION
1
IN+
Comparator Noninverting Input
224
11
VSS
Negative Supply Voltage. Bypass with a 0.1F capacitor.
3
IN-
Comparator Inverting Input
4
OUT
Comparator Output
5—
SHDN
Shutdown
658
4
VDD
Positive Supply Voltage. Bypass with a 0.1F capacitor.
1
OUTA
Comparator A Output
2
INA-
Comparator A Inverting Input
3
INA+
Comparator A Noninverting Input
5
INB+
Comparator B Noninverting Input
6
INB-
Comparator B Inverting Input
7
OUTB
Comparator B Output
8
OUTC
Comparator C Output
9
INC-
Comparator C Inverting Input
10
INC+
Comparator C Noninverting Input
12
IND+
Comparator D Noninverting Input
13
IND-
Comparator D Inverting Input
14
OUTD
Comparator D Output
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