AGAMEM AA88348AP

Agamem Microelectronics Inc.
AA88348AP
PRELIMINARY
FEATURE
z
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„
12 bits serial data input(3 wire serial data
transfer method, DI, CLK, LD)
R-2R resistor ladder used for D/A conversion
8 channels with 8-bit resolution monotonic D/A
converted
8 channel buffer operational amplifiers operating
in the full voltage range from VCC to GND only
if VDD=VCC and VSS=GND
Max. 10 MHz serial digital data input
Serial I/O for cascade application
Max. 1.0 mA output drive/sink current
Two separate power supply/ground lines for
system and analog power supply
Single +5 V system power supply
Pin Assignment
(Top View)
VSS
1
16
GND
AO2
2
15
AO1
AO3
3
14
DI
AO4
4
13
CLK
AO5
5
12
LD
AO6
6
11
DO
AO7
7
10
AO8
VDD
8
9
VCC
AA88348AP
„
8-BIT DAC
DESCRIPTION
The AA88348AP is a CMOS processed
digital to analog converter (DAC) with 8-bit
reso- lotion, low leakage current and low
operating current. The AA88348AP has 8
channels with build in operational amplifier
output buffers which could operate in the
full-swing voltage range from VCC to GND
and enhance the Drive/Sink ability up to max.
1mA.
Digital data (DI) input serially in a max. 10
MHz clock (CLK) rate. The latched 12-bit
digital data is converted into an analog DC
voltage in the range from VSS to VDD with
8-bit resolution in one of the eight channels by
the D/A converter in a max. 20μs settling time.
1
AA88348AP is a single 5V power DAC.
Analog DC output could be full voltage swing
as the analog power is equal to the system
power
.
In addition to normal D/A converter
applications, AA88348AP is also available for
electronic volume and instead of potentiometers for adjustment due to its high stability
on the capacitive load.
.
16 pins TSSOP package type are available
for AA88348AP. Its operational temper- nature
range is specified over –20℃ to 85℃.
2006/7/5
Agamem Microelectronics Inc.
AA88348AP
PRELIMINARY
„
8-BIT DAC
PIN DESCRIPTION
Symbol
Pin No.
Type
Name & Function
VCC
9
-
+5V system power supply pin
GND
16
-
System ground pin
VDD
8
-
Analog power supply pin
VSS
1
-
Analog ground pin
CLK
13
I
LD
12
I
Serial clock input pin. At its rising edge, DI data shift into the
Shift-Register.
Data Strobe pin. When it’s on high, upper 4-bit and lower 8-bit
of the 12-bit in the Shift-Register be latched into the Address
Decoder and the Data-Latch, respectively
DI
14
I
Serial Digital Data input pin
DO
11
O
Serial Digital Data output pin. Output from the 12th data in the
Shift-Register
AO1
15
O
AO2
2
O
AO3
3
O
AO4
4
O
8-bit D/A converter outputs
AO5
5
O
Output range is from VSS
AO6
6
O
AO7
7
O
AO8
10
O
.
.
Data Input/Output
DAC Output
2
to VDD
2006/7/5
AA88348AP
Agamem Microelectronics Inc.
PRELIMINARY
„
8-BIT DAC
BLOCK DIAGRAM
Digital Block
(Clock)
(Serial
CLK
DI
D0
D1
D2
D3
12-bit Shift Register
D4 D5 D6 D7
D8
D9
D10
DO
D11
digital output)
digital input)
4
LD
4-bit Address Decoder
1 2 3 4
(System
VCC
(Strobe)
6 7 8
8
8
8-bit Data
Latch #8
8-bit Data
Latch #8
8
8
GND (System
Power)
Ground)
R-2R
D/A Converter
#1
(Analog
(Serial
VDD
Power)
Analog Output
Analog
Block
D/A Converter
#8
VSS (Anaglog
OP-B
#8
OP-B
#1
AO1
Ground)
AO8
* Vcc and GND are for digital block and operational amplifier buffer block
* VDD, VSS are only for Analog block except operational amplifier buffer block
* Vss + 2V ≦ VDD ≦ Vcc
* GND ≦ Vss ≦ VDD – 2V
3
2006/7/5
Agamem Microelectronics Inc.
PRELIMINARY
„
Cascade
AA88348AP
8-BIT DAC
Connection
DI
Vcc
VDD
CLK
MCU
LD
DO
DI
AA88348AP
GND
Vcc
Vss
VDD
CLK
LD
DO
DI
CLK
AA88348AP
GND
Vcc
Vss
VDD
AA88348AP
LD
DO
GND
Vss
* VDD and VSS of each AA88348AP could be different depend on the application consideration
4
2006/7/5
AA88348AP
Agamem Microelectronics Inc.
PRELIMINARY
„
Data
8-BIT DAC
Input
Format
CLK
MSB
DI
D11
LSB
D10
D9
D2
D1
D0
LD
Past Data
AO1~8
„
Data
Format
in Shift
New Data
Register
LSB
MSB
D0 D 1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11
DI
Data
Address
8
4
To Address Decoder
To Data Latch
„
Data
DO
Conversion
Data
DAC Output Level
D7
D6
D5
D4
D3
D2
D1
D0
AOx
0
0
0
0
0
0
0
0
VSS
0
0
0
0
0
0
0
1
VSS + LSB*
0
0
0
0
0
0
1
0
VSS + 2 * LSB
1
1
1
1
1
1
1
0
VDD - LSB
1
1
1
1
1
1
1
1
VDD
* LSB = (VDD-VSS)/255
5
2006/7/5
AA88348AP
Agamem Microelectronics Inc.
PRELIMINARY
„
Channel
Address
1H
2H
3H
4H
5H
6H
7H
8H
„
8-BIT DAC
Map
OP-B #1
OP-B #2
OP-B #3
OP-B #4
OP-B #5
OP-B #6
OP-B #7
OP-B #8
R-2R D/A #1
R-2R D/A #2
R-2R D/A#3
R-2R D/A#4
R-2R D/A#5
R-2R D/A#6
R-2R D/A#7
R-2R D/A#8
D-L #1
D-L #2
D-L #3
D-L #4
D-L #5
D-L #6
D-L #7
D-L #8
AO1
AO2
AO3
AO4
AO5
AO6
AO7
AO8
Address Decoding
Address
Data Latch Selected
D8
D9
D10
D11
0
0
0
0
NA
0
0
0
1
Data Latch #1
0
0
1
0
Data Latch #2
0
0
1
1
Data Latch #3
0
1
0
0
Data Latch #4
0
1
0
1
Data Latch #5
0
1
1
0
Data Latch #6
0
1
1
1
Data Latch #7
1
0
0
0
Data Latch #8
1
0
0
1
NA
1
0
1
0
NA
1
0
1
1
NA
1
1
0
0
NA
1
1
0
1
NA
1
1
1
0
NA
1
1
1
1
Reserve
6
2006/7/5
Agamem Microelectronics Inc.
AA88348AP
PRELIMINARY
„
8-BIT DAC
ELECTRICAL CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS (See NOTE)
Parameter
Rating
Symbol
Unit
Min
Typ
Max
System Voltage
VCC
-0.3
-
+7.0
V
Analog Voltage
VDD
-0.3
-
+7.0
V
Input Voltage
VIN
-0.3
-
VCC + 0.3
V
VOUT
-0.3
-
VCC + 0.3
V
PD
-
-
250
mW
Ta
-20
-
+85
℃
TS
-55
-
+150
℃
Output Voltage
Power Dissipation
Operating Ambient
Condition
Ta = +25℃
GND = 0V
VDD≦VCC,
Ta = +25℃
GND = 0V
Temperature
Storage Temperature
NOTE: Stress above those listed under “Absolute Maximum Rating” may cause permanent damage to the device. This
is a stress rating only and functional operation of the device at these or any other conditions above those indicated in
the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for the
extended periods of time may affect device reliability.
RECOMMENDED OPERATING CONDITIONS
Parameter
System Voltage
Analog Voltage
Analog Output Current
Analog Output Load
Capacitance for
Oscillation limit
Operating Ambient
Temperature
Rating
Symbol
Unit
Min
Typ
Max
VCC
4.5
5.0
5.5
V
GND
-
0
-
V
VDD
2.0
-
VCC
V
VSS
GND
-
VCC – 2.0
V
IAO
-1.0
-
+1.0
mA
COL
-
-
+1.0
μF
Ta
-20
-
+85
℃
7
Condition
VCC ≧ VDD,
VDD – VSS ≧ 2.0V
Vss ≧ GND
VAO shift≦0.3V
2006/7/5
Agamem Microelectronics Inc.
AA88348AP
PRELIMINARY
8-BIT DAC
„
DC CHARACTERISTICS
‹
Digital Block
Ta = 25℃
Parameter
‹
Value
Symbol
Unit
Min
Typ
Max
Condition
System Voltage
VCC
4.5
5.0
5.5
System Current
ICC
-
1.2
2.5
mA CLK = 1 MHz, No load;
Input Leakage Current
IILK
-5
-
+5
μA VIN = 0V / 5V
Digital Input Low Voltage
VIL
-
-
0.2‧VCC
V
Digital Input High Voltage
VIH
0.5‧VCC
-
-
V
Digital Output Low
VOL
-
-
0.4
V
IOL = +2.5 mA
Digital Output High
VOH
VCC – 0.4
-
-
V
IOH = –400μA
Analog
V
Block
Ta = 25℃
Parameter
Value
Symbol
Unit
Condition
Min
Typ
Max
IDD
-
0.7
1.0
VDD
2.0
-
VCC
V
VSS
GND
-
VCC – 2.0
V
Analog Output Drive Range
VAOH
VDD – 0.1
VDD
VDD + 0.1
V
IAOH = 0μA
(VCC=VDD=5V,
VAOH
VDD – 0.2
VDD
VDD + 0.2
V
IAOH = –500μA
VSS=GND=0V, Data=#FF)
Analog Output Sink Range
VAOH
VDD – 0.3
VDD
VDD + 0.3
V
IAOH = –1mA
VAOL
VSS – 0.1
VSS
VSS + 0.1
V
IAOL = 0μA
(VCC=VDD=5V,
VAOL
VSS – 0.2
VSS
VSS + 0.2
V
IAOL = 500μA
VSS=GND=0V, Data=#00)
Resolution (AOx)
Integral Non-Linearity
VAOL
VSS – 0.3
VSS
VSS + 0.3
V
IAOL = 1mA
Res
-
8
-
bit
INL
-1.5
-
+2
Differential Non-Linearity
DNL
-0.5
0
+3.5
Analog Current
Analog Voltage
mA No load
VDD –VSS ≧ 2V
VCC =5.5V, GND=0V
LSB VDD=4.775V, VSS=0.95
LSB = 15mv, no load
LSB
NOTES:
Integral Non-Linearity : The difference between the digital data converted DC analog values and a
reference straight line drawn through the first and the last output values
Differential Non-Linearity : The difference between the ideal and real increment value of DC analog voltage
when the digital data increase 1 bit.
8
2006/7/5
Agamem Microelectronics Inc.
AA88348AP
PRELIMINARY
„
8-BIT DAC
AC CHARACTERISTICS
Parameter
‹
Value
Symbol
Unit
Min
Typ
Max
ns
Condition
Clock Rate
TCR
100
-
-
ns
Load Strobe Pulse Width
TLDP
50
-
-
ns
Analog Output Settling Time
TAOS
-
-
20
μs *RAL = 10 kΩ, CAL = 50pF (#00--> #FF)
Digital Output Delay Time
TDDO
-
-
200
ns **CL = 100 pF (Max.)
AC
Test
•
Condition
Analog Output Settling Time
Device
Under
Test
Timing
•
Test Point
Device
Under
Test
Test Point
CL**
Chart
0.8.Vcc
CLK
Digital Output Delay Time
CAL*
RAL*
‹
Ta = 25℃
0.2.Vcc
0.2.Vcc
TCR
TLDP
0.8.Vcc
LD
TAOS
AOx
0.8.Vcc
Past Data
0.2.Vcc
New Data
TDDO
DO
Past Data
0.8 .Vcc
0.2 .Vcc
9
New Data
2006/7/5
Agamem Microelectronics Inc.
AA88348AP
PRELIMINARY
„
8-BIT DAC
TSSOP PACKAGE
SYMBOLS
DIMENSION
DIMENSIONS IN MILLIMETERS
DIMENSIONS IN INCHES
MIN
NOM
MAX
MIN
NOM
MAX
A
---
---
1.20
---
---
0.048
A1
0.05
---
0.15
0.002
---
0.006
A2
0.80
1.00
1.05
0.031
0.039
0.041
b
0.19
---
0.30
0.007
---
0.012
C
0.09
---
0.20
0.004
---
0.008
D
4.90
5.00
5.10
0.193
0.197
0.201
E
6.20
6.40
6.60
0.244
0.252
0.260
E1
4.30
4.40
4.50
0.169
0.173
0.177
e
---
0.65
---
---
0.026
---
L
0.45
0.60
0.75
0.018
0.024
0.030
y
---
---
0.10
---
---
0.004
θ
0°
---
8°
0°
---
8°
NOTES:
1. Package body sizes exclude mold flash protrusions or gate burrs
2. Tolerance ± 0.1 ㎜ (4 mil) unless otherwise specified
3. Coplanarity:0.1 ㎜
4. Controlling dimension is millimeter converted inch dimensions are not necessarily exact
5. Followed from jedec mo-153
10
2006/7/5