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Datasheet: al1214a (Samsung semiconductor)

AL1214A 12Bit 80MSPS DAC ; Function = DAC ; Configuration = 12BIT 80MSPS ; Library Type = STD85 ; Characteristic = 5V/22mA

 

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Samsung semiconductor
/home/web/doc/html/samsung/187373
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AL1214A
12-BIT 160MSPS DAC
1
GENERAL DESCRIPTION
The AL1214A is a CMOS 12-bit D/A converter for general applications. Its maximum conversion rate is 160MSPS
and supply voltage is 5V single. An external 3.2V voltage reference (VBIAS) and a single resister (RSET) control
the full-scale output current .
FEATURES
160MSPS pipeline operation
5V CMOS monolithic construction
0.3LSB differential linearity (typical)
1.5LSB internal linearity (typical)
External voltage reference
12-bit voltage parallel input
TYPICAL APPLICATIONS
High Definition Television (HDTV)
Hard Disk Drive
High Resolution Color Graphics
CAE/CAD/CAM
ATE (Auto Test Equipment)
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12-BIT 160MSPS DAC
AL1214A
2
FUNCTIONAL BLOCK DIAGRAM
IN
P
U
T
B
U
F
F
E
R
1
'ST
L
A
T
C
H
Decoder
2
'ST
L
A
T
C
H
DAC
CLKGEN
OPA
CM
D[0]
D[1]
D[2]
D[3]
D[4]
D[5]
D[6]
D[7]
D[8]
D[9]
CLOCK
VBIAS
IREF
CCOMP
IO
PD
D[10]
D[11]
Rev 2.1 (Apr. 2002)
No responsibility is assumed by SEC for its use nor for any infringements of patents or other rights of third parties
that may result from its use. The content of this datasheet is subject to change without any notice.
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AL1214A
12-BIT 160MSPS DAC
3
CORE PIN DESCRIPTION
Name
I/O Type
I/O Pad
Pin Description
IO
AO
poba_bb
Analog
Output
(output
Range
:
2Vpp)
D[11]~D[0]
DI
pic_bb
Digital
Output
PD
DI
pic_bb
High = power
saving
standby
mode
(normally
=
Gnd)
CLK
DI
pic_bb
Clock
Input
VBIAS
AI
pia_bb
External
Bias
(3.2V)
IREF
AO
poba_bb
Full
Sale
Adjust
Control
CCOMP
AB
poba_bb
Using
Compensation
Capacitor
VDDA
AP
vdda
Analog Power
VSSA
AG
vssa
Analog Ground
VDDD
DP
vddd
Digital
Power
VSSD
DG
vssd
Digital Ground
VBB
AG
vbb
Analog Ground (bulk bias)
I/O TYPE ABBR.
AI : Analog Input
DI : Digital Input
AO : Analog Output
DO : Analog Output
AP : Analog Power
DP : Digital Power
AG : Analog Ground
DG : Digital Ground
AB : Analog Bi-direction
DB : Digital Bi-direction
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12-BIT 160MSPS DAC
AL1214A
4
CORE CONFIGURATION
al1214a
IO
CCOMP
VSSD VBB
IREF
PD
D[11:0]
VBIAS CLOCK
VDDD VSSA
VDDA
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AL1214A
12-BIT 160MSPS DAC
5
ABSOLUTE MAXIMUM RATINGS
Characteristics
Symbol
Min
Unit
Supply Voltage
VDDD,VDDA
-0.5 ~ +6.5
V
Reference Input Voltage
Vin
VSSD-0.25 to VDDD+0.25
V
Operating Temperature Range
Topr
0 to +70
C
Storage Temperature Range
Tstg
-55 to +150
C
NOTES:
1.
Absolute maximum rating values applied individually while allother parameters are within specified operating condition.
Function operation under any of these conditions is not implied.
2.
Applied voltage must be current limited to specified range
3.
Absolute maximum ratings are value beyond which the device may be damaged permanently. Normal operation is not
guaranteed.
RECOMMENDED OPERATING CONDITIONS
Characteristics
Symbol
Min
Typ
Max
Unit
Operating Supply Voltage
VDDD-VSSD
VDDA-VSSA
4.75
5.0
5.25
V
Digital Input Voltage High
VIH
4.5
-
-
V
Digital Input Voltage Low
VIL
-
-
0.5
V
Operating Temperature Range
TOPR
0
-
70
C
Output Load (effective)
RL
-
160
-
Reference Voltage
VREF
-
3.2
-
V
Clock Cycle Time
Tclk
-
50
-
ns
Clock Pulse Width High
Tpwh
-
25
-
ns
Clock Pulse Width Low
Tpwl
-
25
-
ns
IREF Current
Iref
-
1.4
-
mA
NOTES:
1.
It is strongly recommended that to avoid power latch-up all the supply pins(VDDA,VDDD) be driven from the same
source.
2.
Voltage on any digital pin that goes below VSSD (Digital Ground) by less than 0.3V can induce destructive latch-up
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