MAX530 Datasheet, PDF (1/16 Pages) Maxim Integrated Products – +5V, Low-Power, Parallel-Input, Voltage-Output, 12-Bit DAC

19-0168; Rev 3; 7/95
+5V, Low-Power, Parallel-Input,
Voltage-Output, 12-Bit DAC
_______________General Description
The MAX530 is a low-power, 12-bit, voltage-output digi-
tal-to-analog converter (DAC) that uses single +5V or
dual ±5V supplies. This device has an on-chip voltage
reference plus an output buffer amplifier. Operating cur-
rent is only 250µA from a single +5V supply, making it
ideal for portable and battery-powered applications. In
addition, the SSOP (Shrink-Small-Outline-Package) mea-
sures only 0.1 square inches, using less board area than
an 8-pin DIP. 12-bit resolution is achieved through laser
trimming of the DAC, op amp, and reference. No further
adjustments are necessary.
Internal gain-setting resistors can be used to define a
DAC output voltage range of 0V to +2.048V, 0V to
+4.096V, or ±2.048V. Four-quadrant multiplication is pos-
sible without the use of external resistors or op amps. The
parallel logic inputs are double buffered and are compati-
ble with 4-bit, 8-bit, and 16-bit microprocessors. For DACs
with similar features but with a serial data interface, refer
to the MAX531/MAX538/MAX539 data sheet.
________________________Applications
Battery-Powered Data-Conversion Products
Minimum Component-Count Analog Systems
Digital Offset/Gain Adjustment
Industrial Process Control
Arbitrary Function Generators
Automatic Test Equipment
Microprocessor-Controlled Calibration
________________Functional Diagram
____________________________Features
o Buffered Voltage Output
o Internal 2.048V Voltage Reference
o Operates from Single +5V or Dual ±5V Supplies
o Low Power Consumption:
250µA Operating Current
40µA Shutdown-Mode Current
o SSOP Package Saves Space
o Relative Accuracy: ±¹/2 LSB Max Over
Temperature
o Guaranteed Monotonic Over Temperature
o 4-Quadrant Multiplication with No External
Components
o Power-On Reset
o Double-Buffered Parallel Logic Inputs
______________Ordering Information
PART
TEMP. RANGE
PIN-PACKAGE
ERROR
(LSB)
MAX530ACNG 0°C to +70°C 24 Narrow Plastic DIP ±^1/2
MAX530BCNG 0°C to +70°C 24 Narrow Plastic DIP ±1
MAX530ACWG 0°C to +70°C 24 Wide SO
±^1/2
MAX530BCWG 0°C to +70°C 24 Wide SO
±1
MAX530ACAG 0°C to +70°C 24 SSOP
±^1/2
MAX530BCAG 0°C to +70°C 24 SSOP
±1
MAX530BC/D 0°C to +70°C Dice*
±1
Ordering Information continued on last page.
* Dice are tested at T_A = +25°C, DC parameters only.
__________________Pin Configuration
REFGND ¹⁷
AGND ¹⁴
CLR ¹⁵
A0 ⁸
A1 ⁹
CS ¹¹
WR ¹⁰
LDAC ¹⁶
REFOUT
18
REFIN ROFS
13
22
2.048V
REFERENCE
POWER-ON
RESET
DAC LATCH
MAX530
12-BIT DAC LATCH
21 _RFB
20 _VOUT
23 _VDD
12 _DGND
19
VSS
CONTROL
LOGIC
NBL
INPUT
LATCH
NBM
INPUT
LATCH
NBH
INPUT
LATCH
24 1 2 3 4 5 6 7
D0/D8 D2/D10 D4 D6
D1/D9 D3/D11 D5 D7
TOP VIEW
D1/D9 ₁
D2/D10 2
D3/D11 ₃
D4 ₄
D5 5
D6 6
D7 ₇
A0 ₈
A1 ₉
WR 10
CS ₁₁
DGND ₁₂
MAX530
24 D0/D8
23 ^VDD
22 ROFS
21 ^RFB
20 ^VOUT
19 VSS
18 REFOUT
17 REFGND
16 LDAC
15 CLR
14 AGND
13 REFIN
DIP/SO/SSOP
________________________________________________________________ Maxim Integrated Products 1
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