- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄5361 > AD8202YRZ-RL (Analog Devices Inc)IC AMP DIFF 50KHZ 8SOIC PDF資料下載
參數(shù)資料
| 型號： | AD8202YRZ-RL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 7/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP DIFF 50KHZ 8SOIC |
| 產(chǎn)品培訓模塊： | Current Sense Amplifiers |
| 標準包裝： | 2,500 |
| 放大器類型： | 差分 |
| 電路數(shù)： | 1 |
| 轉換速率： | 0.28 V/µs |
| 增益帶寬積： | 50kHz |
| 電流 - 輸入偏壓： | 40nA |
| 電壓 - 輸入偏移： | 1000µV |
| 電流 - 電源： | 250µA |
| 電壓 - 電源，單路/雙路(±)： | 3.5 V ~ 12 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 8-SO |
| 包裝： | 帶卷 (TR) |
Data Sheet
AD8202
Rev. H | Page 15 of 20
GAIN TRIM
Figure 45 shows a method for incremental gain trimming by
using a trim potentiometer and external resistor, REXT.
The following approximation is useful for small gain ranges:
ΔG ≈ (10 M/REXT)%
Thus, the adjustment range is ±2% for REXT = 5 M; ±10% for
REXT = 1 M, and so on.
5V
OUT
REXT
GAIN TRIM
20k
MIN
VCM
VDIFF
2
VDIFF
2
NC = NO CONNECT
GND
NC
–IN
+IN
A1
+VS
A2
OUT
AD8202
04981-018
Figure 45. Incremental Gain Trim
Internal Signal Overload Considerations
When configuring gain for values other than 20, the maxi-
mum input voltage with respect to the supply voltage and
ground must be considered because either the preamplifier
or the output buffer reaches its full-scale output (approximately
VS 0.2 V) with large differential input voltages. The input of
because the preamplifier, with its fixed gain of ×10, reaches its full-
scale output before the output buffer. For gains greater than 10, the
swing at the buffer output reaches its full scale first and limits the
LOW-PASS FILTERING
In many transducer applications, it is necessary to filter
the signal to remove spurious high frequency components
including noise, or to extract the mean value of a fluctuating
signal with a peak-to-average ratio (PAR) greater than unity.
For example, a full-wave rectified sinusoid has a PAR of 1.57,
a raised cosine has a PAR of 2, and a half-wave sinusoid has a
PAR of 3.14. Signals having large spikes can have PARs of 10
or more.
When implementing a filter, the PAR should be considered
so that the output of the AD8202 preamplifier (A1) does not clip
before A2 because this nonlinearity would be averaged
and appear as an error at the output. To avoid this error,
both amplifiers should clip at the same time. This condition
is achieved when the PAR is no greater than the gain of the
second amplifier (2 for the default configuration). For example,
if a PAR of 5 is expected, the gain of A2 should be increased to 5.
Low-pass filters can be implemented in several ways by using the
AD8202. In the simplest case, a single-pole filter (20 dB/decade)
is formed when the output of A1 is connected to the input of
A2 via the internal 100 k resistor by tying Pin 3 and Pin 4
and adding a capacitor from this node to ground, as shown in
Figure 46. If a resistor is added across the capacitor to lower the
gain, the corner frequency increases; it should be calculated using
the parallel sum of the resistor and 100 k.
5V
VCM
VDIFF
2
VDIFF
2
NC = NO CONNECT
C
GND
NC
–IN
+IN
A1
+VS
A2
OUT
AD8202
04981-019
OUTPUT
fC =
1
2
πC105
C IN FARADS
Figure 46. Single-Pole, Low-Pass Filter Using the Internal 100 k Resistor
If the gain is raised using a resistor, as shown in Figure 44, the
corner frequency is lowered by the same factor as the gain is
raised. Thus, using a resistor of 200 k (for which the gain
would be doubled), the corner frequency is now 0.796 Hz/F
(0.039 F for a 20 Hz corner frequency).
5V
VCM
VDIFF
2
VDIFF
2
NC = NO CONNECT
C
GND
NC
–IN
+IN
A1
+VS
A2
OUT
AD8202
04981-020
OUT
C
255k
fC(Hz) = 1/C(F)
Figure 47. 2-Pole, Low-Pass Filter
A 2-pole filter (with a roll-off of 40 dB/decade) can be
implemented using the connections shown in Figure 47. This is a
Sallen-Key form based on a ×2 amplifier. It is useful to remember
that a 2-pole filter with a corner frequency f2 and a 1-pole filter
with a corner at f1 have the same attenuation at the frequency
(f22/f1). The attenuation at that frequency is 40 log (f2/f1), which is
illustrated in Figure 48. Using the standard resistor value shown
and equal capacitors (see Figure 47), the corner frequency is
conveniently scaled at 1 Hz/F (0.05 F for a 20 Hz corner).
A maximally flat response occurs when the resistor is lowered to
196 k and the scaling is then 1.145 Hz/F. The output offset
is raised by approximately 5 mV (equivalent to 250 V at the
input pins).
相關PDF資料 |
PDF描述 |
|---|---|
| NPPN041BFCN-RC | CONN RECEPT 2MM SINGLE STR 4POS |
| AD8205YRZ-RL | IC AMP DIFF 8SOIC |
| KTR10EZPF1003 | RES 100K OHM 1/8W 1% 0805 SMD |
| AD8616ARZ-REEL | IC OPAMP GP R-R CMOS 24MHZ 8SOIC |
| AD8007ARZ-RL | IC OPAMP CF ULDIST LN LP 8SOIC |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AD8203 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Dual-Channel Audio Difference Amplifier |
| AD8203YCSURF | 制造商:AD 制造商全稱:Analog Devices 功能描述:High Common-Mode Voltage, Single-Supply Difference Amplifier |
| AD8203YRMZ | 功能描述:IC AMP DIFF 60KHZ 8MSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 產(chǎn)品培訓模塊:Differential Circuit Design Techniques for Communication Applications 標準包裝:1 系列:- 放大器類型:RF/IF 差分 電路數(shù):1 輸出類型:差分 轉換速率:9800 V/µs 增益帶寬積:- -3db帶寬:2.9GHz 電流 - 輸入偏壓:3µA 電壓 - 輸入偏移:- 電流 - 電源:40mA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):3 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-VQFN 裸露焊盤，CSP 供應商設備封裝:16-LFCSP-VQ 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:551 (CN2011-ZH PDF) 其它名稱:ADL5561ACPZ-R7CT |
| AD8203YRMZ-R7 | 功能描述:IC AMP DIFF 60KHZ 8MSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:1,000 系列:- 放大器類型:電壓反饋 電路數(shù):4 輸出類型:滿擺幅 轉換速率:33 V/µs 增益帶寬積:20MHz -3db帶寬:30MHz 電流 - 輸入偏壓:2nA 電壓 - 輸入偏移:3000µV 電流 - 電源:2.5mA 電流 - 輸出 / 通道:30mA 電壓 - 電源，單路/雙路(±):4.5 V ~ 16.5 V，±2.25 V ~ 8.25 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:14-SOIC 包裝:帶卷 (TR) |
| AD8203YRMZ-RL | 功能描述:IC AMP DIFF 60KHZ 8MSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:2,500 系列:- 放大器類型:通用 電路數(shù):1 輸出類型:滿擺幅 轉換速率:0.11 V/µs 增益帶寬積:350kHz -3db帶寬:- 電流 - 輸入偏壓:4nA 電壓 - 輸入偏移:20µV 電流 - 電源:260µA 電流 - 輸出 / 通道:20mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 36 V，±1.35 V ~ 18 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:8-SO 包裝:帶卷 (TR) |
發(fā)布緊急采購，3分鐘左右您將得到回復。