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參數(shù)資料
| 型號(hào)： | MAX7491EEE+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 14/18頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC FILTER SW CAP DUAL 16-QSOP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 濾波器類型： | 通用開關(guān)電容器 |
| 頻率 - 截止或中心： | 40kHz |
| 濾波器數(shù)： | 2 |
| 濾波器階數(shù)： | 2nd |
| 電源電壓： | 2.7 V ~ 3.6 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SSOP（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-QSOP |
| 包裝： | 帶卷 (TR) |
MAX7490/MAX7491
Dual Universal Switched-Capacitor Filters
_______________________________________________________________________________________
5
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
POWER REQUIREMENTS
Supply Voltage
VDD
2.7
3.6
V
Power-Supply Current
IDD
No load, mode 1, R1 = R3 = 50k
Ω,
R2 = 10k
Ω, Q = 5
3.5
4.0
mA
Shutdown Current
ISHDN
SHDN = GND
1
μA
INTERNAL OP AMPS CHARACTERISTICS
Output Short-Circuit Current
±11
mA
DC Open-Loop Gain
RL
≥ 10kΩ, CL ≤ 50pF
130
dB
Gain Bandwidth Product
GBW
RL
≥ 10kΩ, CL ≤ 50pF
7
MHz
Slew Rate
SR
RL
≥ 10kΩ, CL ≤ 50pF
6
V/
μs
Note 1: Resistive loading of the N_/HP_, LP_, BP_ outputs includes the resistors used for the filter implementation.
Note 2: Crosstalk between internal filter sections is measured by applying a 1VRMS 10kHz signal to one bandpass filter section input
and grounding the input of the other bandpass filter section. The crosstalk is the ratio between the output of the grounded
filter section and the 1VRMS input signal of the other section.
Note 3: Bandwidth of noise measurement is 80kHz.
Note 4: fOSC (kHz) = 135 x 103 / COSC (COSC in pF)
ELECTRICAL CHARACTERISTICS—MAX7491 (continued)
(VDD = VEXTCLK = +3V; fCLK = 625kHz; 10kΩ || 50pF load to VDD/2 at LP_, BP_, and N_/HP_; VSHDN = VDD; 0.1F from COM to
GND; 50% duty-cycle clock input; COM = VDD/2; TA = TMIN to TMAX. Typical values are at TA = +25°C, unless otherwise noted.)
(Note 1)
Typical Operating Characteristics
(VDD = +5V for MAX7490, VDD = +3V for MAX7491, fCLK = 625kHz, VSHDN = VEXTCLK = VDD, COM = VDD/2, Mode 1, R3 = R1 = 50kΩ,
R2 = 10kΩ, Q = 5, TA = +25°C, unless otherwise noted.)
10
-60
1
10
100
2ND-ORDER BANDPASS FILTER
FREQUENCY RESPONSE
-50
MAX7490-01
FREQUENCY (kHz)
GAIN
(dB)
-30
-40
-10
-20
0
300
0
110
100
2ND-ORDER BANDPASS FILTER
PHASE RESPONSE
50
MAX7490-02
FREQUENCY (kHz)
PHASE
(%)
100
200
150
250
VDD = +5V
fCLK = 625kHz
Q = 5
0
-0.8
100
1000
10,000
CLOCK-TO-CENTER FREQUENCY
DEVIATION vs. CLOCK FREQUENCY
-0.7
MAX7490-03
fCLK (kHz)
f CLK
/f
O
DEVIATION
(%)
-0.6
-0.2
-0.3
-0.4
-0.5
-0.1
VDD = 5V
VDD = 3V
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| MAX749CPA+T | 制造商:Maxim Integrated Products 功能描述: |
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