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參數(shù)資料
| 型號(hào)： | MAX7414CUA+T |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 12/12頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC FILTER LOWPASS 5TH 8UMAX |
| 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： | 巴特沃斯，低通開關(guān)電容器 |
| 頻率 - 截止或中心： | 15kHz |
| 濾波器數(shù)： | 1 |
| 濾波器階數(shù)： | 5th |
| 電源電壓： | 2.7 V ~ 3.6 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-TSSOP，8-MSOP（0.118"，3.00mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-uMAX |
| 包裝： | 帶卷 (TR) |
| 配用： | MAXFILTERBRD+-ND - BOARD EVAL MAX7408/7415/418-7425 |
MAX7409/MAX7410/MAX7413/MAX7414
5th-Order, Lowpass,
Switched-Capacitor Filters
_______________________________________________________________________________________
9
Low-Power Shutdown Mode
These devices feature a shutdown mode that is activat-
ed by driving SHDN low. In shutdown mode, the filter’s
supply current reduces to 0.2A and its output becomes
high impedance. For normal operation, drive SHDN
high or connect it to VDD.
__________Applications Information
Offset and Common-Mode
Input Adjustment
The COM pin sets the common-mode input voltage and
is biased at mid-supply with an internal resistor-divider.
If the application does not require offset adjustment,
connect OS to COM. For applications requiring offset
adjustment, apply an external bias voltage through a
resistor-divider network to OS such as shown in Fig-
ure 3. For applications that require DC level shifting,
adjust OS with respect to COM. (Note: OS should not
be left unconnected.) The output voltage is represent-
ed by this equation:
VOUT = (VIN - VCOM) + VOS
with VCOM = VDD / 2 (typical), and where (VIN - VCOM)
is lowpass filtered by the SCF, and OS is added at the
output stage. See the
Electrical Characteristics for the
voltage range of COM and OS. Changing the voltage
on COM or OS significantly from midsupply reduces
the filter’s dynamic range.
Power Supplies
The MAX7409/MAX7410 operate from a single +5V
supply and the MAX7413/MAX7414 operate from a sin-
gle +3V supply. Bypass VDD to GND with a 0.1F
capacitor. If dual supplies are required (±2.5V for
MAX7409/MAX7410, ±1.5V for MAX7413/MAX7414),
connect COM to system ground and connect GND to
the negative supply. Figure 4 shows an example of
dual-supply operation. Single- and dual-supply perfor-
mance are equivalent. For either single- or dual-supply
operation, drive CLK and SHDN from GND (V- in dual-
supply operation) to VDD. For ±5V dual-supply applica-
tions, use the MAX291–MAX297.
Input Signal Amplitude Range
The optimal input signal range is determined by
observing the voltage level at which the Total Harmonic
Distortion + Noise is minimized for a given corner fre-
quency. The
Typical Operating Characteristics show
graphs of the devices’ Total Harmonic Distortion plus
Noise Response as the input signal’s peak-to-peak
amplitude is varied.
Anti-Aliasing and DAC Postfiltering
When using these devices for anti-aliasing or DAC
postfiltering, synchronize the DAC (or ADC) and the fil-
ter clocks. If the clocks are not synchronized, beat fre-
quencies will alias into the desired passband.
Harmonic Distortion
Harmonic distortion arises from nonlinearities within the
filter. These nonlinearities generate harmonics when a
pure sine wave is applied to the filter input. Table 1 lists
typical harmonic-distortion values for the MAX7410/
MAX7414 with a 10k
load at TA = +25°C. Table 2 lists
typical harmonic-distortion values for the MAX7409/
MAX7413 with a 10k
load at TA = +25°C.
VDD
VSUPPLY
IN
CLK
GND
INPUT
OUTPUT
50k
OUT
0.1
F
0.1
F
0.1
F
CLOCK
SHDN
COM
OS
MAX7409
MAX7410
MAX7413
MAX7414
Figure 3. Offset Adjustment Circuit
VDD
V+
V-
IN
CLK
GND
INPUT
OUTPUT
OUT
0.1
F
CLOCK
*DRIVE SHDN TO V- FOR LOW-POWER SHUTDOWN MODE.
SHDN
COM
OS
0.1
F
MAX7409
MAX7410
MAX7413
MAX7414
*
V+
V-
Figure 4. Dual-Supply Operation
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| MAX7414EPA | 功能描述:有源濾波器 RoHS:否 制造商:Maxim Integrated 通道數(shù)量:1 截止頻率:150 KHz 電源電壓-最大:11 V 電源電壓-最小:4.74 V 最大工作溫度:+ 85 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube |
| MAX7414EPA+ | 功能描述:有源濾波器 5th-Order Lowpass Elliptic Filter RoHS:否 制造商:Maxim Integrated 通道數(shù)量:1 截止頻率:150 KHz 電源電壓-最大:11 V 電源電壓-最小:4.74 V 最大工作溫度:+ 85 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube |
| MAX7414EUA | 功能描述:有源濾波器 RoHS:否 制造商:Maxim Integrated 通道數(shù)量:1 截止頻率:150 KHz 電源電壓-最大:11 V 電源電壓-最小:4.74 V 最大工作溫度:+ 85 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube |
| MAX7414EUA+ | 功能描述:有源濾波器 5th-Order Lowpass Elliptic Filter RoHS:否 制造商:Maxim Integrated 通道數(shù)量:1 截止頻率:150 KHz 電源電壓-最大:11 V 電源電壓-最小:4.74 V 最大工作溫度:+ 85 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube |
| MAX7414EUA+T | 功能描述:有源濾波器 5th-Order Lowpass Elliptic Filter RoHS:否 制造商:Maxim Integrated 通道數(shù)量:1 截止頻率:150 KHz 電源電壓-最大:11 V 電源電壓-最小:4.74 V 最大工作溫度:+ 85 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube |
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