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Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
8-Bit D/A Converter IC
PT8214
DESCRIPTION
PT8214 is an 8-bit D/A Converter IC with operational amplifier output buffers. It supports up to a maximum of 36 channels and provides two reference voltages which enable its 36 channels to be used as 12 and 24 independent channels. Digital data are inputted in serially and is controlled by the CLK and STB Pins making a cascading connection between devices. Available in 48 pins, LQFP package, PT8214 is capable of large current drive since each channel has an operational amplifier output buffer. Pin assignments and application circuit are optimized for easy PCB Layout and cost saving advantages.
FEATURES
* * * * * * * * * * CMOS technology Very low power consumption: Type 1.1mW/channel Max. 2.5MHz serial data input Separate supply voltages for digital and analog blocks R-2R resistor ladder conversion method On-chip operational amplifier output buffers: Max. +1.0/-1.0mA analog output sink/source current capability Analog data output range: 0 to Vcc (V) Two analog output reference voltage Analog data can be outputted in different reference voltages Available in 48 pins, LQFP package
APPLICATIONS
* * * * * * Digital equipment V8 CD ROM/VCD MPEG Sound card Replacement for potentiometers
PT8214 V1.0
-1-
January, 2006
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
8-Bit D/A Converter IC
PT8214
BLOCK DIAGRAM
DI CLK
14-Bit Shift Register *1
D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
DO
Channel Decoder 1 36
STB
VDD1
1 8-Bit Register R-2R Type 8-Bit D/A Converter +
AO1
24
8-Bit Register
R-2R Type 8-Bit D/A Converter
+
AO24
VSS1 VDD2
25 8-Bit Register R-2R Type 8-Bit D/A Converter +
AO25
VCC GND
30 8-Bit Register R-2R Type 8-Bit D/A Converter +
AO30
31
8-Bit Register
R-2R Type 8-Bit D/A Converter
+
AO31
36
8-Bit Register
R-2R Type 8-Bit D/A Converter
+
AO36
VSS2
Note: *1=14-Bit Shift Register with an MSB-First format.
PT8214 V1.0 -2January, 2006
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
8-Bit D/A Converter IC
PT8214
PIN CONFIGURATION
AO11 AO10 48 47 46 45 44 43 42 41 40 39 38 37 AO9 AO8 AO7 AO6 AO5 AO4 AO3 AO2 AO1 AO36
DI 1 CLK 2 STB 3 DO 4 GND 5 NC 6 VSS1 7 VDD1 8 AO 12 9 AO 13 10 AO 14 11 AO 15 12
PT8214
36 35 34 33 32 31 30 29 28 27 26 25
AO35 AO34 AO33 AO32 VSS2 VDD2 NC VCC AO31 AO30 AO29 AO28
PT8214 V1.0
AO 16 AO 17 AO 18 AO 19 AO 20 AO 21 AO 22 AO 23 AO 24 AO 25 AO 26 AO 27
13 14 15 16 17 18 19 20 21 22 23 24
-3-
January, 2006
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
8-Bit D/A Converter IC
PT8214
PIN DESCRIPTION
Pin Name DI* CLK* STB* DO GND NC VSS1 VDD1 AO12 to AO24 AO25 to AO27 AO28 to AO31 VCC VSS2 AO32 to AO36 AO1 to AO11 I/O I I I O O O O O O Description Serial data input pin Shift clock input pin Serial data input from the DI pin are inputted to the internal shift register at the rising edge of the CLK signal. Load strobe input pin When this pin is "High", the shift register contents are loaded into the decoder and 8-bit register. Serial data output pin The serial data in the shift register are outputted from this pin. This pin allows a cascade connection. Ground No connection D/A converter ground pin (for AO1 to AO24 outputs) D/A converter supply voltage (for AO1 to AO24 outputs) D/A converter output pin #1 D/A converter output pin #2 D/A converter output pin #2 Digital block & operational amplifier output buffer supply voltage (for AO25 to AO36 outputs) D/A converter ground pin (for AO25 to AO36 outputs) D/A converter output pin #2 D/A converter output pin #1 Pin No. 1 2 3 4 5 6, 30 7 7 9 to 21 22 to 24 25 to 28 29 32 33 to 37 38 to 48
Note: *=DI, CLK & STB must be fixed at low level when there is no data transfer.
PT8214 V1.0
-4-
January, 2006
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
8-Bit D/A Converter IC
PT8214
FUNCTION DESCRIPTION
PT8214 is an 8-bit D/A Converter IC which provides 14 bits shift register for digital data storage and channel selection. The 14 bits shift register are shown below. Last D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 First D13
D/A Converter The D/A converter output are given in the table below. Input data D0 D1 D2 D3 D4 D5 D6 D7 DAC Output 0 0 0 0 0 0 0 0 VSS 1 0 0 0 0 0 0 0 VREF/256x1+VSS 0 1 1 1 1 1 1 1 VREF/256x254+VSS 1 1 1 1 1 1 1 1 VREF/256x255+VSS Note: VREF=VDD-VSS The channel selection table is given below. Input data D8 D9 D10 D11 D12 D13 Selected channel 0 0 0 0 0 0 Not selected 0 0 0 0 0 1 AO1 to AO30 selected 0 1 1 1 1 0 0 1 1 1 1 1 AO31 to AO36 selected 1 0 0 1 0 0 1 0 0 1 0 1 Not selected 1 1 1 1 1 1
Channel
PT8214 V1.0
-5-
January, 2006
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
8-Bit D/A Converter IC
PT8214
TIMING GIAGRAM
MSB DI D13 D12 D11 D10 D2 D1 LSB D0
CLK STB
D/A Output
ANALOG OUTPUT VOLTAGE RANGE
DAC OUTPUT VDD1, VDD2 VCC OP -AMP O UTP UT VAOH=( VCC)
D/A O UTPUT RANG E
VS S1, VSS 2
GND
VAOL ( =G ND)
VSS1=VDD1=VDD2 GND=VSS1=VSS2
PT8214 V1.0
-6-
January, 2006
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
8-Bit D/A Converter IC
PT8214
ABSOLUTE MAXIMUM RATINGS
Parameter Power supply voltage Input voltage output voltage Power dissipation Operating temperature Storage temperature Symbol VCC VDD1, VDD2 VIN VOUT PD Topr Tstg Condition Ta=+25 GND=0V, VDD1VCC, VDD2VCC Ta=+25 GND=0V, should not exceed VCC+0.3V Min. -0.3 -0.3 -0.3 -0.3 -45 -65 Typ. Max. 7.0 7.0 VCC+0.3 VCC+0.3 250 +85 +150 Unit V
V mW
RECOMMANDED OPERATING CONDITIONS
Parameter Power supply voltage (MCU interface/OP-AMP block) Power supply voltage (Analog block)* Analog output source current Analog output sink current Analog output load capacitance (OSC limit) Symbol VCC GND VDD1, VDD2 VSS1, VSS2 IAL IAH CAL Condition VCC>VDD VDD1-VSS12.0V VDD2-VSS22.0V Min. 4.5 2.0 GND Typ. 5.0 0 Max. 5.5 VCC VCC-2.0 -1.0 +1.0 1.0 Unit V
V mA mA F
Note: *=Except Operational Analog Amplifier Output Buffer Block. VDD1 (VSS1), VDD2 (VSS2) can be independently set.
PT8214 V1.0
-7-
January, 2006
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
8-Bit D/A Converter IC
PT8214
DIGITAL BLOCK DC ELECTRICAL CHARACTERISTICS
Parameter Active supply current (VCC)* Input leakage current (CLK, DI, STB) Low level input voltage High level input voltage (CLK, DI, STB) Low level output voltage (DO) High level output voltage (DO) Symbol ICC IILK VIL VIH VOL VOH IOL=2.5mA IOH=-400A Condition CLK=1MHz Unloaded VIN=0 to VCC Min. -10 0.5VCC VCC-0.4 Typ. 2.0 Max. 8.0 +10 0.2VCC 0.4 Unit mA A V V V V
Note: *=Supply current to the operational amplifier block included.
PT8214 V1.0
-8-
January, 2006
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
8-Bit D/A Converter IC
PT8214
ANALOG BLOVK DC ELECTRICAL CHARACTERISTICS
(D/A CONVERTERS WITH OPERATIOPNAL AMPLIFIER OUTPUT BUFFERS)
Parameter Supply current VDD1, VDD2* Symbol IDD Condition Unloaded IDD is the total current value for the DAC output pin #1 & #2 VDD1=VDD2=VCC VSS1=VSS2=GND=0V IAL=0A Digital data=#00H VDD1=VDD2=VCC=5.0V VSS1=VSS2=GND=0V IAL=500A Digital data=#00H VDD1=VDD2=VCC=5.0V VSS1=VSS2=GND=0V IAH=500A Digital data=#00H VDD1=VDD2=VCC=5.0V VSS1=VSS2=GND=0V IAL=1.0mA Digital data=#00H VDD1=VDD2=VCC=5.0V VSS1=VSS2=GND=0V IAH=1.0mA Digital data=#00H VDD1=VDD2=VCC VSS1=VSS2=GND=0V IAL=0A Digital data=#FFH VDD1=VDD2=VCC=5.0V VSS1=VSS2=GND=0V IAL=500A Digital data=#FFH Min. Typ. 1 Max. 6.0 Unit mA
Minimum analog output voltage 1 (AOn) Minimum analog output voltage 2 (AOn) Minimum analog output voltage 3 (AOn) Minimum analog output voltage 4 (AOn) Minimum analog output voltage 5 (AOn) Maximum analog output voltage 1 (AOn) Maximum analog output voltage 2 (AOn)
VAOL1
VSS1 VSS2 VSS1-0.2 VSS2-0.2 VSS1 VSS2 VSS1-0.3 VSS2-0.3 VSS1 VSS2 VSS1-0.1 VSS2-0.1 VSS1-0.2 VSS2-0.2
-
VSS1+0.1 VSS2+0.1 VSS1+0.2 VSS2+0.2 VSS1+0.2 VSS2+0.2 VSS1+0.3 VSS2+0.3 VSS1+0.3 VSS2+0.3 VDD1 VDD2 VDD1 VDD2
V
VAOL2
VSS1 VSS2
V
VAOL3
-
V
VAOL4
VSS1 VSS2
V
VAOL5
-
V
VAOH1
-
V
VAOH2
-
V
PT8214 V1.0
-9-
January, 2006
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
8-Bit D/A Converter IC
Parameter Maximum analog output voltage 3 (AOn) Maximum analog output voltage 4 (AOn) Maximum analog output voltage 5 (AOn) Resolution (AOn) Linearity error (AOn) Different linearity (AOn) Symbol VAOH3 Condition VDD1=VDD2=VCC=5.0V VSS1=VSS2=GND=0V IAH=500A Digital data=#FFH VDD1=VDD2=VCC=5.0V VSS1=VSS2=GND=0V IAL=1.0mA Digital data=#FFH VDD1=VDD2=VCC=5.0V VSS1=VSS2=GND=0V IAH=1.0mA Digital data=#FFH Unloaded VDDVCC-0.1V VSS0.1V Unloaded Min. VSS1-0.2 VSS2-0.2 VSS1-0.3 VSS2-0.3 VSS1-0.3 VSS2-0.3 -1.5 -1.0 Typ. VDD1 VDD2 Max. VSS1+0.2 VSS2+0.2 VDD1 VDD2 VSS1+0.3 VSS2+0.3 1.5 1.0
PT8214
Unit V
VAOH4
-
V
VAOH5 Res LE DLE
VDD1 VDD2 8 -
V bit LSB LSB
Note: *=Supply current to the operational amplifier block not included.
5V 5V 5V Ta=+25C IAL (Source current) IAH (Sink current)
VDD1 VDD2 DI CLK LD VSS1 VSS2
VCC AO1
Pattern Inputs
AO36 GND
V
PT8214 V1.0
- 10 -
January, 2006
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
8-Bit D/A Converter IC
PT8214
AC CHARACTERISTICS
(Unless otherwise specified, recommended operation conditions prevail) Parameter Symbol Condition Clock low time tCLK Clock high time tCKH Clock rise time tCR Clock fall time tCF Data setup time tDCH Data hold time tCHD Load strobe high time tSTBH Load strobe setup time tCHL Load strobe hold time tSTBC RAL=10K, CAL=50pF (note 1) DAC output setting time tSTBD CL=20pF(min.), 100pF (max.) Data output delay time tDO (note 2) Min. 200 200 30 60 100 200 100 70 Max. 200 200 100 350 Unit ns ns ns ns ns ns ns ns ns s ns
NONLINEARITY ERROR DEFINITION
Analog O utput voltage End point
VAOH* Linearity error
VAOL**
#000
#FFF
Digital data
Note: 1. *=VAOH is not always equal to VDD. 2. **=VAOL is not always equal to VSS.
PT8214 V1.0
- 11 -
January, 2006
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
8-Bit D/A Converter IC
PT8214
AC TEST CONDITIONS
DAC OUTPUT SETTING TIME
Device being tested Test point
RAL
CAL
DAC OUTPUT DELAY TIME
Device being tested Test point
CL
INPUT/OUTPUT TIMING
CLK 0.2V cc tCKL DI
0.8Vcc 0.2Vcc
tCR tCKH
tCF
0.2V cc
0.8V cc
0.8V cc
0.2V cc
0.2V cc
0.8Vcc 0.2Vcc
tDCH
tCHD tCHL 0.8V cc 0.2V cc
tSTBH 0.8V cc
tSTBC
STB
0.2V cc
tSTBD
AO n tDO DO PRE VIOUS DATA Vcc-0.4 0.4V
PRE VIOUS DATA
0.9V cc NEW VALID DATA 0.1V cc
NEW VALID DATA
PT8214 V1.0
- 12 -
January, 2006
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
8-Bit D/A Converter IC
PT8214
ORDER INFORMATION
Valid Part No. PT8214 PT8214 (L) Package Type 48 pins, LQFP 48 pins, LQFP Top Code PT8214 PT8214
Notes: 1. (L), (C) or (S) = Lead Free 2. The Lead Free mark is put in front of the date code.
PT8214 V1.0
- 13 -
January, 2006
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
8-Bit D/A Converter IC
PT8214
48 PINS, LQFP (BODY SIZE: 7 X 7MM, PITCH SIZE: 0.50, THK BODY: 1.40MM)
D D1 -DA A2
A1
E1
E
-A-
-B-
L1 e
1
b
c
C SEATING PLANE
ccc
2
R1 -HR2 GAUGE PLANE
C
0.25mm
S
L
3
PT8214 V1.0
- 14 -
January, 2006
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
8-Bit D/A Converter IC
Symbol A A1 A2 b D D1 e E E1 1 2 3 C L L1 R1 R2 S ccc Notes: Min. 0.05 1.35 0.17 Typ. 1.40 0.22 9.00 BSC 7.00 BSC 0.50 BSC 9.00 BSC 7.00 BSC 3.5 12 12 0.60 1.00 REF. 0.08 Max 1.60 0.15 1.45 0.27
PT8214
0 0 11 11 0.09 0.45 0.08 0.08 0.20
7 13 13 0.20 0.75 0.20 -
1. Dimensioning and tolerancing per ASME Y14.5M-1994 2. The top package body size may be smaller than the bottom package size by as much as 0.15mm. 3. Datum A-B and D to be determined at the datum plane H. 4. Dimensions D1 and E1 do not include mold protrusions. Allowable protrusion is 0.25 mm per side. D1 and E1 are maximum plastic body size dimensions including mold mismatch. 5. Controlling Dimension: MILLIMETER 6. Dimension b does not include dambar protrusion. Allowable dambar protrusion shall not cause the lead width to exceed the maximum b dimension by more than 0.08mm. Dambar cannot be located on the lower radius or the foot. Minimum space between the protrusion and an adjacent lead is 0.07mm for 0.4mm and 0.5mm PITCH Package. 7. These dimensions apply to the flat section of the lead between 0.10mm and 0.25mm from the lead tip. 8. A1 is defined as the distance from the seating plane to the lowest point on the package body. 9. Details of pin 1 identifier are optional but must be located within the zone identified. 10. Dimension D2 and E2 show the minimum allowed for the optional exposed heat slug. The maximum allowed is equal to the package body size (D1 and E1). However, the size of the exposed heat slug is variable depending on the device function (die size). End users should verify the actual size or either top or bottom exposed thermal pad for specific device application. 11. Refer to JEDEC MS-026 Variation BBC. JEDEC is the registered trademark of JEDEC SOLID STATE TECHNOLOGY ASSOCIATION.
PT8214 V1.0
- 15 -
January, 2006

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