Agilent Technologies L4400 manual Dac, L4451A D-Sub Connector Pinout

9L4451A 4-Channel Isolated D/A Converter with Waveform Memory

The following diagram shows individual DAC channel configuration. All channels are configured the same.

Calibration Constant (non-volatile memory)

DAC x

User-Supplied Connections

HI Voltage Sense

Immediate		(1 of 4 Channels)
Data	16 Bits
		Control Logic	25 mA Thermal Fuse

(resettable)

WaveformInternal

MemoryClock

Internal

Trigger

L4451A D-Sub Connector Pinout

HI Voltage, + Current

LO Voltage, − Current

LO Voltage Sense

Ext Clock In/Out

Ext Trig In/Out

GND NC 4 L 4H 3L 3H GND GND GND NC 2L 2H GND NC 1L 1H GND

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

	4L	4H	3L	3H		EXT			2L	2H			1L	1H
GND Sense Sense Sense Sense GND CLK TRIG GND Sense Sense GND GND Sense Sense															GND
18	19	20	21	22	23	24	25	26	27	28	29	30	31	32	33

50-Pin D-Sub Female Connector

GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND

34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

Description	Socket	Description	Socket	Description	Socket	Description	Socket	Description	Socket
1L	15	3L Sense	21	GND	8	GND	34	GND	44
1H	16	3H Sense	22	GND	9	GND	35	GND	45
1L Sense	31	4L	3	GND	13	GND	36	GND	46
1H Sense	32	4H	4	GND	17	GND	37	GND	47
2L	11	4L Sense	19	GND	18	GND	38	GND	48
2H	12	4H Sense	20	GND	23	GND	39	GND	49
2L Sense	27	External Clock	24	GND	26	GND	40	GND	50
2H Sense	28	Trigger	25	GND	29	GND	41	No Connect	2
3L	5	GND	1	GND	30	GND	42	No Connect	10
3H	6	GND	7	GND	33	GND	43	No Connect	14

232 L4400 User’s Guide