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DAC2814BP 数据表(PDF) 7 Page - Burr-Brown (TI)

[Old version datasheet] Texas Instruments acquired Burr-Brown Corporation.
部件名 DAC2814BP
功能描述  DUAL 12-BIT DIGITAL-TO-ANALOG CONVERTER Serial Interface
Download  11 Pages
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制造商  BURR-BROWN [Burr-Brown (TI)]
网页  http://www.burr-brown.com
标志 BURR-BROWN - Burr-Brown (TI)

DAC2814BP 数据表(HTML) 7 Page - Burr-Brown (TI)

Back Button DAC2814BP Datasheet HTML 3Page - Burr-Brown (TI) DAC2814BP Datasheet HTML 4Page - Burr-Brown (TI) DAC2814BP Datasheet HTML 5Page - Burr-Brown (TI) DAC2814BP Datasheet HTML 6Page - Burr-Brown (TI) DAC2814BP Datasheet HTML 7Page - Burr-Brown (TI) DAC2814BP Datasheet HTML 8Page - Burr-Brown (TI) DAC2814BP Datasheet HTML 9Page - Burr-Brown (TI) DAC2814BP Datasheet HTML 10Page - Burr-Brown (TI) DAC2814BP Datasheet HTML 11Page - Burr-Brown (TI)  
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7
®
DAC2814
MODE
CLR
CLK
CS
LATCH A
LATCH B
FUNCTION
X1
0
X
X
Data Clocked In
X
1
X
1
X
X
No Data Transfer
X
1
X
0
0
1
DAC A Register Updated
X
1
X
0
1
0
DAC B Register Updated
X
1
X
0
0
0
DAC A and DAC B Updated Together
0
0
X
X
X
X
All Registers Cleared
1
0
X
X
X
X
Shift Registers Cleared = 000HEX, DAC Registers = 800HEX
NOTE: X = Don’t care
↓ = Falling edge triggered.
t1
t3
t2
t8
t7
t4
t6
t5
CLK
Data
CS
LATCH A
LATCH B
CLR
0V
5V
0V
5V
5V
5V
NOTES: (1) All input signal rise and fall times are measured from 10% to 90% of +5V • t = t = 5ns.
(2) Timing measurement reference level is V
+ V .
R
F
IH
IL
2
TIMING CHARACTERISTICS
VL = +5V, TA = –40°C to +85°C.
PARAMETER
MINIMUM
t1—Data Setup Time
15ns
t2—Data Hold time
15ns
t3—Chip Select to CLK,
15ns
Latch, Data Setup Time
t4—Chip Select to CLK,
40ns
Latch, Data Hold Time
t5—CLK Pulse Width
40ns
t6—Clear Pulse Width
40ns
t7—Latch Pulse Width
40ns
t8—CLK Edge to LATCH A
15ns
or LATCH B
INTERFACE LOGIC TRUTH TABLE
FUNCTIONAL BLOCK DIAGRAM , DAC2814 — Dual, 12-bit DAC, Serial Port
10k
10k
20k
20k
20k
20k
6
18
17
+V
L
BPO B
V
B
OUT
DAC B
19
14
BPO A
V
A
OUT
DAC A
12 Inv Out
Control
Logic
12-Bit
Latch
Register
12-Bit
Shift
Register
12-Bit
Latch
Register
12-Bit
Shift
Register
Bits 0-11
0-11
Bits 0-11
0-11
5
15
16
1
7
10
8
4
MODE
CLR
LATCH B
LATCH A 22
+V
S
–V
S
DGND +V
Out
REF
Inv In
AGND
Data Out
23
Data In
11
V
In
REF
Bit 11
Bit 11
+10V
Voltage
Reference
CLK
2
21
CS 24
3
A
3
A
2
A
1


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