利用内置PGA的24位Σ-Δ型ADC AD7190实现精密电子秤设计CN0102原

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Component	Qty	100	Part	Description	Manufacturer	Manufacturer No	Order from	Order No	Part (€)x/$x	Part (EUR)	Kit (EUR)
PCB	1	100		2-layer FR4, solder mask, RoHS1.6x100x160mm		EVAL-AD7190EBZ Rev.C					#REF!
U1	1	100	AD7190/92	Sigma-Delta ADC, TSSOP-24	Analog Dev.	AD7190BRUZ/AD7190BRUZ	ADI	free issue
Sample1-2	2	200	AD7190/92	Sigma-Delta ADC, TSSOP-24	Analog Dev.	AD7190BRUZ/AD7190BRUZ	ADI	free issue
U2	1	100	AD421	Voltage Reference 2.5V, SO-8	Analog Dev.	ADR421BRZ	ADI	free issue
				alternative:	Analog Dev.	ADR421ARZ	ADI	free issue
U31	1	100	ADP3303-5V	Voltage Regulator, SO-8	Analog Devices	ADP3303ARZ-5	ADI	free issue
U32	1	100	ADP3303-3.3V	Voltage Regulator, SO-8	Analog Devices	ADP3303ARZ-3.3	ADI	free issue
U50	1	100	AD5258-10kohm	DigiPot, 64-step, 10kohm, MSOP-10	Analog Devices	AD5258BRMZ10	ADI	free issue
U51	1	100	CY7C68013A	Microcontroller, EZ-USB FX2LP uC, QFN-56	Cypress	CY7C68013A-56LFXC	Farnell	126-9133	6.450	6.450	6.45
U52	1	100	24LC64	EEPROM, I2C, 64k, SO-8	Microchip	24LC64-I/SN	Farnell	975-8070	0.363	0.363	0.36
U53	1	100	LCD_connector	Receptable, pitch 2.54mm, 1x16-pin, SMT	Samtec	SSM-116-L-SV	Digikey	SAM1148-16-ND	$3.48530	2.324	2.32
				alternative 1x50pin cut to 3pcs	Samtec	SSM-150-L-SV	Digikey	SAM1148-50-ND	$5.12500	3.417
LED1-3 LED51	4	400	Red	LED, high intensity (>90mCd), 0603	Avago Tech.	HSMC-C191	Farnell	855-4528	0.151	0.151	0.60
LED4-8	5	500	Green	LED, high intensity (>50mCd), 0603	Avago Tech.	HSME-C191	Farnell	121-9743	0.125	0.125	0.63
XTAL1			4.9152MHz	Crystal, not inserted, through hole					0.000	0.000
XTAL51			24.0MHz	Crystal, load 12pF, SMD 5x3.2mm	AVX	CX5032GB24000H0PESZZ	Farnell awaiting	136-8770	0.740	0.740
	1	100		alternative, SMD 7x5mm	ECS	ECS-240-12-20A-TR	Digikey	XC1009CT-ND	$2.475	1.650	1.65
D1	1	100	5.8V	Diode, TVS unipolar, 6.8V 600W, SMB	ON	P6SMB6.8AT3G	Farnell	145-9166	0.153	0.153	0.15
D31-34	4	400	BAT721C	Diode, 2xSchot.com.cath, 40V 0.2A, SOT-23	Philips	BAT721C	Farnell	108-1199	0.240	0.240	0.96
Q51	1	100	BSS138	Transistor, N-MOSFET, 60V, 0.23A, SOT-23	Infineon	BSS138N	Farnell	115-6434	0.129	0.129	0.13
C1-7 C15-16			-	Capacitor ceramic, not inserted, 0603
C52-53	2	200	12pF	Capacitor ceramic, 50V, COG, 0603	Phycomp	2238 867 15129	Farnell	721-979	0.036	0.036	0.07
C8 C10-11 C13	4	400	0.01uF	Capacitor ceramic, 50V, X7R, 0603	Phycomp	2238 586 15636	Farnell	722-236	0.024	0.024	0.10
C19-22 C24 C31-33 C54-61	16	1600	0.1uF	Capacitor ceramic, 16V, X7R, 0603	Phycomp	2238 786 15649	Farnell	432-210	0.032	0.032	0.51
C9 C12 C14	3	300	1uF	Capacitor ceramic, 6.3V, X5R, 0603	Phycomp	2238 246 13663	Farnell	940-2080	0.076	0.076	0.23
C23 C34-37 C50-51	7	700	4.7uF	Capacitor ceramic, 6.3V, X5R, 0603	Phycomp	2255 206 13672	Farnell	940-2110	0.194	0.194	1.36
C17 C18 C25 C30	4	400	10uF	Capacitor Tantalum, 16V, TAJ-A	AVX	TAJA106M016R	Farnell	146-2407	0.200	0.200	0.80
L1	1	100	1000Z	Ferrite Bead, 1000Z, 300mA, 0805	Tyco	BMB2A1000LN2	Farnell	119-3421	0.193	0.193	0.19
R17, R75-76			-	Resistor, not inserted, 0603					0.000	0.000
R1, R2, R5	3	300	0R0	Resistor, 0603	Phycomp	232270296001	Farnell	923-3130	0.081	0.081	0.24
R16	1	100	1R5	Resistor, 1%, 0603	Phycomp	232270461508	Farnell	923-8140	0.036	0.036	0.04
R31-32	2	200	10R	Resistor, 1%, 0603	Phycomp	232270461009	Farnell	923-8247	0.036	0.036	0.07
R74	1	100	47R	Resistor, 1%, 0603	Phycomp	232270464709	Farnell	923-8328	0.036	0.036	0.04
R3-4, R8, R20-25	9	900	100R	Resistor, 1%, 0603	Phycomp	232270461001	Farnell	923-8360	0.073	0.073	0.66
R6-7 R52-54	5	500	1K0	Resistor, 1%, 0603	Phycomp	232270461002	Farnell	923-8484	0.036	0.036	0.18
R9-15 R19 R50-51	10	1000	10K	Resistor, 1%, 0603	Phycomp	232270461003	Farnell	923-8603	0.073	0.073	0.73
R18 R55-57, R62-73	16	1600	100K	Resistor, 1%, 0603	Phycomp	232270461004	Farnell	923-8727	0.020	0.020	0.32
S1-5	5	500	Switch	Push Button, sealed, 6x6mm, SMD	Omron	B3S-1000	Farnell	177-807	0.570	0.570	2.85
B1	0.2	20	9V_battery	Clip for 9V battery, PCB mounting, packof 5	Keystone	593+594	Farnell	723-988	4.360	4.360	0.87
J1	1	100	2x4-pin	Header, vertical, pitch 2.54mm, SMD	Tyco/AMP	1241050-4	Farnell	968-9575	1.050	1.050	1.05
				alternative: any equivalent, can be tinplated
J2-3	2	200	2x8-pin	Header, vertical, pitch 2.54mm, SMD	Tyco/AMP	1241050-8	Farnell	968-9613	1.510	1.510	3.02
				alternative: any equivalent, can be tinplated
J4	1	100	1x8-pin	Terminal header, pitch 3.81mm, rightangle	Phoenix Contact	1803332	Farnell	370-4774	1.400	1.400	1.40
J10	1	100	1x2-pin	Screw terminal block, pitch 3.81mm	Phoenix Contact	1727010	Farnell	370-4579	0.517	0.517	0.52
J52			-	Connector, not inserted
J31	1	100	Pwr_Jack	Connector, Pwr Jack, Barrel, 2.1mm, SMD	Lumberg	1613_14	Farnell	124-3245	0.660	0.660	0.66
				alternative	CUI Inc.	PJ-002AH-SMT	Digikey	CP-002AHPJCT-ND	$0.60	0.400
J51	1	100	Mini-USB	Connector, USB Mini-B, SMD	Molex	548190572	Farnell	978-6473	1.060	1.060	1.06
J5-9			-	Connector, 50ohm, straight, SMB, notinserted	Amphenol	SMB1251B1-3GT30G-50			1.920	1.920
Assembly
LCD assembly (U53)	1	100	LCD_2x16	LCD module 2x16 char, 1x16-pin, top	Everbouquet	MC1602C-SYR	Farnell	122-0424	6.280	6.280	6.28
				alternative: needs to be discussed withADI
LCD assembly (U53)	1	100	Header_1x16	Header, pitch 2.54mm, 1x16-pin, L=5.08mm,Hand-soldered to LCD	Tyco	1-826629-6	Farnell	124-8124	1.040	1.040	1.04
				alternative: any equivalent, can be tinplated
LCD assembly (U53)	0.04	4		Screw M2.5x16, pack of 100			Farnell	141-9768	8.000	8.000	0.32
				alternative: any Zinc or Nickel platedscrew. Will be seen on LCD, must look reasonably nice
LCD assembly (U53)	0.04	4		Nut M2.5, pack of 100			Farnell	141-9446	1.530	1.530	0.06
				alternative: any Zinc or Nickel platednut.
LCD assembly (U53)	0.08	8		Spacer, hex, 10mm, pack of 25	Harwin	R30-9401000	Farnell	359-210	3.050	3.050	0.24
				alternative: any plastic or metal specer10mm	NSF	MKS10 SPACER 221805 10MM	Farnell	116-5267	0.129	0.129
(J1)	1	100	Jumper	Jumper, pitch 2.54mm, 2-way, RED	Harwin	M7566-05	Farnell	150-411	0.280	0.280	0.28
				alternative: any equivalent
(J2, J3)	16	1600	Jumper	Jumper, pitch 2.54mm, 2-way, BLACK	FCI	68786-202LF	Farnell	109-7979	0.093	0.093	1.49
				alternative: any equivalent
(J4)	1	100	Connector	Screw terminal plug, pitch3.81mm,straight,8way	Phoenix Contact	1803633	Farnell	370-4956	4.000	4.000	4.00
(PCB)	0.08	9	Feet	Feet, stick-on, d=9.5mm h=3.8mm, packof 48	3M	SJ5306TRANS	Farnell	116-5068	7.770	7.770	0.70
KIT
Box	1	100		Eval Kit Box	Europacks	K-645/1	Europacks	K-645/1			Price!
Cable	1	100		USB A to Mini-B Cable	Tyco / AMP	1496476-1	Farnell	114-6639	2.410	2.410	2.41
				alternative: any equivalent
Bag	0.01	1		Anti-static bag - to insert the board, packof 100	3M	150Z58	Farnell	130-6603	12.520	12.520	0.13
Sticker	1	100		USB software warning sticker - to closethe bag				ADI Free Issue
Wraping	1	100		Soft filling material - to fix board andcable in box							Price!
CD	1	100		AD7150 evaluation kit CD - under board inbox				ADI Free Issue	1.000	1.000	1.00
Label	1	100		Bar code label, EVAL-AD7190EBZ - outsidebox				ADI Free Issue

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EVAL-AD7190EBZ-SCH-RevC1.rar (51 KB, 下载次数: 4)

2018-12-17 02:33 上传

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SCH

EVAL-AD7190EBZ-PADS-RevC1.pcb.rar (340 KB, 下载次数: 1)

2018-12-17 02:33 上传

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PCB

wangy2000

学习了，谢谢。

单枪舞九州

支持

tonyz1

很好的资料,看一看

kxz564978637

lf2k2022

xiaofeihu