AD876 Просмотр технического описания (PDF) - Analog Devices
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AD876 Datasheet PDF : 17 Pages
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AD876
PIN FUNCTION DESCRIPTIONS
Symbol
SOIC
Pin No.
TQFP
Pin No.
Type
Name and Function
D0 (LSB) 3
1
DO
D1–D4
4–7
2–5
DO
D5–D8
8–11
8–11
D9 (MSB) 12
12
DO
THREE-
16
23
DI
STATE
STBY
17
24
DI
CLK
CML
REFTF
REFBF
REFTS
REFBS
AIN
AVDD
AVSS
DVDD
DVSS
DRVDD
DRVSS
15
22
DI
26
38
AO
22
30
AI
24
34
AI
21
29
AI
25
35
AI
27
39
AI
28
42
P
1
44
P
18
26
P
14, 19, 20 17, 27, 28 P
2
45
P
13
16
P
Least Significant Bit.
Data Bits 1 through 4.
Data Bits 5 through 8.
Most Significant Bit.
THREE-STATE = LOW
THREE-STATE = HIGH
or N/C
Normal Operating Mode
High Impedance Outputs
STBY = LOW or N/C
STBY = HIGH
Normal Operating Mode
Standby Mode
Clock Input.
Bypass Pin for an Internal Bias Point.
Reference Top Force.
Reference Bottom Force.
Reference Top Sense.
Reference Bottom Sense.
Analog Input.
+5 V Analog Supply.
Analog Ground.
+5 V Digital Supply.
Digital Ground.
+3.3 V/+5 V Digital Supply. Supply for digital
input and output buffers.
+3.3 V/+5 V Digital Ground. Ground for digital
input and output buffers.
Type: AI = Analog Input; AO = Analog Output; DI = Digital Input; DO = Digital Output; P = Power.
SOIC/SSOP
PIN CONFIGURATIONS
TQFP
AVSS 1
DRVDD 2
*D0 3
*D1 4
D2 5
28 AVDD
27 AIN
26 CML
25 REFBS
24 REFBF
D3 6
23 NC
AD876
D4 7
22 REFTF
TOP VIEW
D5 8 (Not to Scale) 21 REFTS
D6 9
D7 10
D8 11
D9 12
20 DVSS
19 DVSS
18 DVDD
17 STBY
DRVSS 13
DVSS 14
16 THREE-STATE
15 CLK
* PINS D0 AND D1 ARE LEFT OPEN
FOR THE AD876JR-8
NC = NO CONNECT
48 47 46 45 44 43 42 41 40 39 38 37
D0 1
D1 2
D2 3
D3 4
D4 5
6
7
D5 8
D6 9
D7 10
D8 11
D9 12
AD876
TOP VIEW
(Not to Scale)
36
35 REFBS
34 REFBF
33
32
31
30 REFTF
29 REFTS
28 DVSS
27 DVSS
26 DVDD
25
13 14 15 16 17 18 19 20 21 22 23 24
–4–
REV. B
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