opa827 0.1-10Hz噪聲濾波器 PCB圖+電路原理圖

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電梯直達

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ID:124161 發表于 2016-6-13 15:03 | 只看該作者 |只看大圖回帖獎勵

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0.1-10Hz 放大器噪聲測量濾波器PCB樣圖：

PCB線路圖：

電路原理圖采用opa827芯片：

此電路設計用于將低頻噪聲（0.1Hz 至 10Hz）放大至示波器可輕松測量到的電平。它通過一個 0.1Hz 二階高通濾波器和一個 10Hz 四階低通濾波器實現此功能。0.1Hz 至 10Hz 噪聲測量是放大器數據表中給出的一個常見優值。此設計旨在簡化常用不同封裝樣式的 0.1Hz 至 10Hz 噪聲測量。

對 0.1Hz 至 10Hz 噪聲進行濾波
以系數 100,000 對噪聲進行放大
允許對常見放大器封裝配置進行測試

bom表：

1	14	0.1uF	C1, C4, C7, C8, C9, C10, C13, C14, C16, C18, C19, C20, C21, C22	CAP, CERM, 0.1uF, 50V, +/-5%, X7R, 0805	AVX	08055C104JAT2A	478-3352-1-ND
2	2	4.7uF	C2, C3	CAP, CERM, 4.7uF, 16V, +/-20%, X7R, 1206	TDK	C3216X7R1C475M160AB	445-5994-1-ND
3	2	7.5n	C5, C6	CAP CER 7500PF 50V 5% NP0 0805	TDK	GRM2195C1H752JA01D	490-1639-1-ND
4	2	1uF	C11, C12	CAP, CERM, 1uF, 50V, +/-10%, X7R, 0805	TDK	C2012X6S1H105K085AB	445-14501-1-ND
5	2	0.1uF	C15, C17	CAP CER 1UF 50V 10% X6S 0805	TDK	C2012X6S1H105K085AB	445-14501-1-ND
6	4		H1, H2, H3, H4	Machine Screw, Round, #4-40 x 1/4, Nylon, Philips panhead	B&F Fastener	NY PMS 440 0025 PH	H542-ND
7	1	Vs+	J1	Standard Banana Jack, Uninsulated, 5.5mm	Keystone	575-4	575-4K-ND
8	1	GND	J2	Standard Banana Jack, Uninsulated, 5.5mm	Keystone	575-4	575-4K-ND
9	1	Vs-	J3	Standard Banana Jack, Uninsulated, 5.5mm	Keystone	575-4	575-4K-ND
10	2		J4, J5	CONN BNC JACK R/A 75 OHM PCB	TE Connectivity	1-1478032-0	A97560-ND
11	5		JMP1, JMP2, JMP3, JMP4, JMP5, JMP6, JMP7	CONN HEADER 50POS .100" SGL GOLD (cut as needed)	Samtec Inc	TSW-150-07-G-S	SAM1029-50-ND
12	5	10	R1, R4, R14, R18, R20	RES 10.0 OHM 1/10W 0.1% 0805	TE Connectivity	1-1614884-7	A103143CT-ND
13	5	10.0k	R2, R5, R15, R19, R21	RES 10K OHM 1/8W .1% 0805 SMD	Panasonic	ERA-6AEB103V	P10KDACT-ND
14	1	1.6M	R3	RES 1.6M OHM 1/10W 0.1% 0805	TE Connectivity	1-1614959-2	A103800CT-ND
15	2	825k	R6, R11	RES 825K OHM 1/8W 0.5% 0805 SMD	Panasonic	ERA-6AED8253V	P825KBNCT-ND
16	2	2.00Meg	R7, R8	RES, 2.00Meg ohm, 1%, 0.125W, 0805	Vishay-Dale	CRCW08052M00FKEA	541-2.00MCCT-ND
17	1	162k	R9	RES 162K OHM 1/8W .1% 0805 SMD	Vishay-Dale	ERA-6AEB1623V	P162KDACT-ND
18	1	210k	R10	RES 210K OHM 1/8W .1% 0805 SMD	Panasonic	ERA-6AEB2103V	P210KDACT-ND
19	1	412k	R12	RES 412K OHM 1/8W .1% 0805 SMD	Panasonic	ERA-6AEB4123V	P412KDACT-ND
20	1	634k	R13	RES 634K OHM 1/8W .1% 0805 SMD	Panasonic	ERA-6AEB6343V	P634KDACT-ND
21	1	1.00k	R16	RES, 1.00k ohm, 1%, 0.125W, 0805	Panasonic	ERA-6AEB102V	P1.0KDACT-ND
22	1	9.09k	R17	RES 9.09K OHM 1/8W .1% 0805 SMD	Panasonic	ERA-6AEB9091V	P9.09KDACT-ND
23	0		R23	Optional for gain set, Do Not Populate for Gain=1
24	1	0	R22	RES 0.0 OHM 1/8W JUMP 0805 SMD	Panasonic	ERJ-6GEY0R00V	P0.0ACT-ND
25	1	GND	TP1	Test Point, TH, Compact, Red	Keystone	5124	5005K-ND
26	1	Vs-	TP2	Test Point, TH, Compact, Red	Keystone	5124	5005K-ND
27	1	Vs+	TP3	Test Point, TH, Compact, Red	Keystone	5124	5005K-ND
28	3		U5, U6, U7, U8	IC OPAMP JFET 22MHZ SGL 8VSSOP	Texas Inst.	OPA827AID	296-24280-1-ND