AD5725 Ver la hoja de datos (PDF) - Analog Devices
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AD5725 Datasheet PDF : 20 Pages
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Data Sheet
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
AD5725
VREFP 1
VOUTB 2
VOUTA 3
AVSS 4
DGND 5
CLR 6
LDAC 7
DB0 (LSB) 8
DB1 9
DB2 10
DB3 11
DB4 12
DB5 13
DB6 14
AD5725
TOP VIEW
(Not to Scale)
28 VREFN
27 VOUTC
26 VOUTD
25 AVDD
24 VL
23 CS
22 A0
21 A1
20 R/W
19 DB11 (MSB)
18 DB10
17 DB9
16 DB8
15 DB7
Figure 6. Pin Configuration Diagram
Table 6. Pin Function Descriptions
Pin No. Mnemonic
Description
1
VREFP
Positive DAC Reference Input. The voltage applied to this pin defines the full-scale output voltage.
Allowable range is AVDD − 2.5 V to VREFN + 2.5 V.
2
VOUTB
Buffered Analog Output Voltage of DAC B.
3
VOUTA
Buffered Analog Output Voltage of DAC A.
4
AVSS
Negative Analog Supply Pin. Voltage ranges from 0 V to −15 V.
5
DGND
Digital Ground Pin.
6
CLR
Active Low Input. Sets input registers and DAC registers to zero scale (0x000) for the AD5725-1 or midscale
(0x800) for the AD5725.
7
LDAC
Active Low Load DAC Input.
8
DB0
Data Bit 0 (LSB).
9
DB1
Data Bit 1.
10
DB2
Data Bit 2.
11
DB3
Data Bit 3.
12
DB4
Data Bit 4.
13
DB5
Data Bit 5.
14
DB6
Data Bit 6.
15
DB7
Data Bit 7.
16
DB8
Data Bit 8.
17
DB9
Data Bit 9.
18
DB10
Data Bit 10.
19
DB11
Data Bit 11 (MSB).
20
R/W
Read/Write Pin. Active low to write data to DAC; Active high to read back previous data at data bit pins with
VL connected to +5 V.
21
A1
Address Bit 1.
22
A0
Address Bit 0.
23
CS
Active Low Chip Select Pin.
24
VL
Voltage Supply for Readback Function. Can be left open circuit if not used.
25
AVDD
Positive Analog Supply Pin. Voltage ranges from +5 V to +15 V.
26
VOUTD
Buffered Analog Output Voltage of DAC D.
27
VOUTC
Buffered Analog Output Voltage of DAC C.
28
VREFN
Negative DAC Reference Input. The voltage applied to this pin defines the zero-scale output voltage.
Allowable range is AVSS to VREFP − 2.5 V.
Rev. C | Page 9 of 20
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