MP7612AP EXAR [Exar Corporation], MP7612AP Datasheet

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MP7612AP

Manufacturer Part Number
MP7612AP
Description
Octal 12-Bit DAC Array D/A Converter with Output Amplifier and Serial Data/Address uP Control Logic
Manufacturer
EXAR [Exar Corporation]
Datasheet
FEATURES
GENERAL DESCRIPTION
Digital-to-Analog Converters with voltage output amplifiers and
a 3-wire standard serial digital address and data port.
all codes. Accuracy of +0.75 LSB for DNL and +1 LSB for INL is
also achieved for B grades. The output amplifier is capable of
SIMPLIFIED BLOCK DIAGRAM
Eight Independent 12-Bit DACs with Output Amplifiers
Low Power 320 mW (typ.)
Serial Digital Data and Address Port (3-Wire
Standard)
12-Bit Resolution, 11 Bit Accuracy
Extremely Well Matched DACs
Extremely Low Analog Ground Current (<60 A/Channel)
+10 V Output Swing with +11.4 V Supplies
Zero Volt Output Preset (Data = 10 .. 00)
Rugged Construction – Latch-Up Free
Parallel Version: MP7613
The MP7612 provides eight independent 12-bit resolution
Typical DAC matching for B grade versions is 0.7 LSB across
Rev. 3.00
1996
RST
CLK
SDI
LD
EXAR Corporation, 48720 Kato Road, Fremont, CA 94538
D
D
LAT
LAT
EN
EN
V
Q
Q
RP
V
EE
12
D0 to D11
16-Bit Shift Register
...the analog plus company
V
EE
+
Not Used
LD
V
XE0 - XE7
4 to 16 Decoder
CC
8
A0 to A3
4
V
CC
V
8
RN
AGND
AGND V
TM
sinking and sourcing 5mA, and the output voltage settles to
12-bits in less than 30 s (typ.).
and board space.
rugged solutions that are latch-up free, and take advantage of
EXAR’s patented thin-film resistor process which exhibits excel-
lent long term stability and reliability.
-processor logic interface to reduce pin count, package size,
The MP7612 is equipped with a serial data (3-wire standard)
Built using an advanced linear BiCMOS, these devices offer
XR XE
XR XE
D
D
LAT0
LAT7
D/A Converter with Output Amplifier
V
XE0
XE7
RP
REF
Q
Q
(510) 668-7000
12
12
APPLICATIONS
DGND DV
Data Acquisition Systems
ATE
Process Control
Self-Diagnostic Systems
Logic Analyzers
Digital Storage Scopes
PC Based Controller/DAS
DAC0
DAC7
V
V
V
V
Octal 12-Bit DAC Array
RN
RP
RN
RP
DD
and Serial Data/Address
FAX (510) 668-7010
Tri-State Buffer
+
+
P Control Logic
LD
MP7612
April 1996-4
VO0
VO7
SDO
TM

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MP7612AP Summary of contents

Page 1

FEATURES Eight Independent 12-Bit DACs with Output Amplifiers Low Power 320 mW (typ.) Serial Digital Data and Address Port (3-Wire Standard) 12-Bit Resolution, 11 Bit Accuracy Extremely Well Matched DACs Extremely Low Analog Ground Current (<60 ...

Page 2

... C PLCC –40 to +85 C SOIC –40 to +85 C SOIC PIN CONFIGURATIONS 1 See the following page for pin descriptions 44 Pin PLCC Rev. 3.00 Res. INL Part No. (Bits) (LSB) MP7612BP 12 1 MP7612AP 12 2 MP7612BS 12 1 MP7612AS AGND VO0 2 27 VO1 3 26 VO2 4 ...

Page 3

PIN DESCRIPTION SOIC PLCC Pin # Pin # ...

Page 4

MP7612 ELECTRICAL CHARACTERISTICS – REF Parameter Symbol STATIC PERFORMANCE Resolution (All Grades) N Integral Non-Linearity INL (Relative Accuracy Differential Non-Linearity DNL A B Positive ...

Page 5

ELECTRICAL CHARACTERISTICS (CONT’D) Parameter Symbol 3 DIGITAL INPUTS Logic High V IH Logic Low V IL Input Current Input Capacitance C L ANALOG OUTPUTS Output Swing Output Drive Current Output Impedance R O Output Short Circuit Current ...

Page 6

MP7612 ELECTRICAL CHARACTERISTICS (CONT’D) NOTES: 1 Guaranteed; not tested. 2 Specified values guarantee functionality. 3 Digital inputs should not go below digital GND or exceed DV 4 See Figures 2 and 3 . All digital input signals are specified with ...

Page 7

SDI (Data In CLK SDO 0 V OUT Notes: (1) Because A3 is available immediately after 16th clock edge of DATA Shift-in, only 15 clock cycles are needed to ...

Page 8

MP7612 The MP7612 is equipped with a serial data (3-wire standard) -processor logic interface to reduce pin count, package size, and board wire (space). If the LD signal is high, the CLK signal loads the digital input bits (SDI) into ...

Page 9

Hex Code Note: See Electrical Characteristics for real system accuracy SERIAL INTERFACE DIAGRAMS Rev. 3.00 Output Voltage = 2 Binary Code ( ...

Page 10

MP7612 PC Data LD CLK PC Data Out Data CLK 1 SDO 2 n Address (SDI) Data In CLK Rev. 3.00 VRI1 VOI1 VRI2 VOI2 IC(1) IC(2) SDI LD ...

Page 11

A0 to A15 MC6800 02 R/W DBO to DB7 NOTES 1. Execute consecutive memory write instructions while manipulating the data between WRITEs so that each WRITE presents the next bit. 2. The serial data loading is triggered by the CLK ...

Page 12

MP7612 PERFORMANCE CHARACTERISTICS – OUT 2.5mV 0 V –2.5mV V OUT Graph 1. Typical Output Settling Characteristic Graph 1 shows the typical output settling characteristic of the MP7610 Family for a RESET of code ...

Page 13

Graph 3. DAC 0 INL vs. V Graph 5. DAC 0 Linearity with REF OUT Graph 7. DAC 0 Linearity with REF OUT Rev. 3.00 Graph ...

Page 14

MP7612 MP7610 Family Figure 9. Circuit for Determining Typical Analog Output Pulse Response 2.0mA I 0.0 400mV V O –400mV 200mV C = 500pF L V OUT –200mV 0s 1.0 s Graph 9. Typical Response of the MP7610 Family Analog ...

Page 15

LEAD PLASTIC LEADED CHIP CARRIER SYMBOL Note: The ...

Page 16

MP7612 28 1 Seating Plane e SYMBOL Note: The control dimension is the millimeter column Rev. 3.00 28 LEAD SMALL OUTLINE (350 MIL JEDEC SOIC ...

Page 17

Rev. 3.00 Notes 17 MP7612 ...

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MP7612 Rev. 3.00 Notes 18 ...

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Rev. 3.00 Notes 19 MP7612 ...

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MP7612 EXAR Corporation reserves the right to make changes to the products contained in this publication in order to im- prove design, performance or reliability. EXAR Corporation assumes no responsibility for the use of any circuits de- scribed herein, conveys ...

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