Texas Instruments DAC7741EVM manual

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																																			Revision History
																					VCC											REV			ECN Number		Approved
	J1		D15																	VSS
	32	31
			D14																		C7	C5
	30	29
			D13							U1
	28	27							35					41	CS						0.1µF	10µF
			D12					D15
	26	25								DB15			CS
			D11					D14	34					42	R/W					C1	C4
D	24	23								DB14		R/W																										D
			D10					D13	33					40	LDAC									VDD
	22	21								DB13		LDAC								0.1µF	10µF
			D9					D12	32
	20	19								DB12					RST
			D8					D11	31					39
	18	17								DB11		RST
			D7					D10	30					43	RSTSEL
	16	15								DB10		RSTSEL																			J3
			D6					D9	29					3													J2
	14	13								DB9		VCC												R13						CS	1	2
			D5					D8	28																R14
	12	11								DB8																	1	2		R/W
			D4					D7	27					2										10k	10k						3	4
	10	9								DB7		VSS															3	4
			D3					D6	22												R1					LDAC					5	6
	8	7								DB6								W6									5	6
			D2					D5	21					46							10K					RST					7	8
	6	5								DB5		REFadj															7	8
			D1					D4	20																	RSTSEL					9	10
	4	3								DB4																	9	10
			D0					D3	19					4												REF_en					11	12
	2	1								DB3		Vref															11	12
								D2	18																						13	14
										DB2						W1								W16	W17		13	14
								D1	17																						15	16
										DB1																	15	16
								D0	16					5																	17	18
										DB0		Roffset															17	18
					VDD																										19	20
									38												R7						19	20
										VDD
														45				R3
												REFout									0/5K/20K
								W9										100K
									10
							Sum_Junc			SJ				47							C8
												REFin
									9	RFB1								C13	C14	W3	1µF
																					R2
					C6		C2	W10						11				0.1µF
												Vout			DAC_VOUT				10µF		Sum_Junc
					10µF		0.1µF	W7	8	RFB2
																					10K
							DAC_VOUT		26	TEST		REFEN		44						exREFin
								W8
														6
C												AGND								R4																		C
									37					7				REF_en
										DGND		AGND									VDD
																W2				10K					+15V	VCC
										DAC7741																						J5
																										W12
																										C9
																										0.01µF
																										7
																							R8	3
																						DAC_VOUT				U2			2	W13	A1		J4
																1								0
																										6			4		B3		2	1
																													6		C5
										+15V						R9						R5	W14	2		Op Amp							4	3
																					exREFin
															2	20K																	6	5
																						10K											8	7
																										5
																																	10	9
																										1
												U3																					12	11
																									4
											5	TRIM		OUT	6	3																	14	13
											2				3											-15V							16	15
												V+	TEMP				W4														+REFin		18	17
											8				1	1
												NC	GND	NC							3												20	19
									C11		7
								Tantalum				NC				3
									10µF												R11
									C3				4	REF102AU(8)				+REFin	TP1		2				W5
B																				EXTERNAL					C10													B
																					100K
									0.1µF											REFERENCE						0.01µF
																			TP2	(exREFin)	1					R6
																					R10					10K
																										C12
																					20K
		VDD			+15V	-15V	VCC	VSS																		1nF
J6				J7																				W15
1	2			1	2
3	4			3	4
5	6			5	6						J10					J12
7	8			7	8														J11
9	10			9	10																			R12
																								10K
											1	2		3	4	1		2	1	2
											+15V			-15V	VCC	VSS				VDD						CLD_OUT							ti
A																W11																						A
																																	12500 TI Boulevard. Dallas, Texas 75243
																															Title:			DAC7741
																											Engineer:
																													J. PARGUIAN		DOCUMENTCONTROL #				6443168		REV:	A
																											Drawn By:
																											FILE:		DAC7741.Sch		DATE:		27-Sep-2002		SIZE:	SHEET:	1 OF:	1
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