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.
____________________________Features
o
o
o
o
o
o
o
o
o
o
Buffered Voltage Output
Internal 2.048V Voltage Reference
Operates from Single +5V or Dual ±5V Supplies
Low Power Consumption:
250µA Operating Current
40µA Shutdown-Mode Current
SSOP Package Saves Space
Relative Accuracy: ±
1
/
2
LSB Max Over
Temperature
Guaranteed Monotonic Over Temperature
4-Quadrant Multiplication with No External
Components
Power-On Reset
Double-Buffered Parallel Logic Inputs
MAX530
______________Ordering Information
PART
TEMP. RANGE
0°C to +70°C
PIN-PACKAGE
24 Narrow Plastic DIP
ERROR
(LSB)
MAX530ACNG
________________________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
±
1/2
±1
±
1/2
±1
±
1/2
±1
±1
MAX530BCNG 0°C to +70°C 24 Narrow Plastic DIP
MAX530ACWG 0°C to +70°C 24 Wide SO
MAX530BCWG 0°C to +70°C 24 Wide SO
MAX530ACAG
0°C to +70°C 24 SSOP
MAX530BCAG
0°C to +70°C 24 SSOP
MAX530BC/D
0°C to +70°C Dice*
Ordering Information continued on last page.
* Dice are tested at T
A
= +25°C, DC parameters only.
________________Functional Diagram
REFOUT
18
2.048V
REFERENCE
REFGND
AGND
17
14
POWER-ON
RESET
15
8
9
CONTROL
LOGIC
NBL
INPUT
LATCH
NBM
INPUT
LATCH
NBH
INPUT
LATCH
DAC LATCH
23
V
DD
DGND
V
SS
REFIN
13
ROFS
22
21 RFB
20
__________________Pin Configuration
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
DIP/SO/SSOP
1
24
D0/D8
23
V
DD
22
ROFS
21
RFB
VOUT
MAX530
20
VOUT
19
V
SS
18
REFOUT
17
REFGND
16
LDAC
15
CLR
14
AGND
13
REFIN
MAX530
12-BIT DAC LATCH
12
19
CLR
A0
A1
CS 11
WR 10
LDAC
16
24 1 2 3 4 5 6 7
D4 D6
D0/D8 D2/D10
D1/D9 D3/D11 D5 D7
________________________________________________________________
Maxim Integrated Products
Call toll free 1-800-998-8800 for free samples or literature.
+5V, Low-Power, Parallel-Input,
Voltage-Output, 12-Bit DAC
MAX530
ABSOLUTE MAXIMUM RATINGS
V
DD
to DGND and V
DD
to AGND ................................-0.3V, +6V
V
SS
to DGND and V
SS
to AGND .................................-6V, +0.3V
V
DD
to V
SS
............................................................... -0.3V, +12V
AGND to DGND........................................................-0.3V, +0.3V
REFGND to AGND........................................-0.3V, (V
DD
+ 0.3V)
Digital Input Voltage to DGND ................... -0.3V, (V
DD
+ 0.3V)
REFIN .................................................(V
SS
- 0.3V), (V
DD
+ 0.3V)
REFOUT .............................................(V
SS
- 0.3V), (V
DD
+ 0.3V)
REFOUT to REFGND ................................... -0.3V, (V
DD
+ 0.3V)
RFB ...................................................(V
SS
- 0.3V), (V
DD
+ 0.3V)
ROFS .................................................(V
SS
- 0.3V), (V
DD
+ 0.3V)
VOUT to AGND (Note 1) .............................................. V
SS,
V
DD
Continuous Current, Any Input ........................................±20mA
Continuous Power Dissipation (T
A
= +70°C)
Narrow Plastic DIP (derate 13.33mW/°C above +70°C)......1067mW
Wide SO (derate 11.76mW/°C above +70°C) .......... 941mW
SSOP (derate 8.00mW/°C above +70°C) ..................640mW
Operating Temperature Ranges:
MAX530_C_ _ ...................................................0°C to +70°C
MAX530_E_ _ ................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +165°C
Lead Temperature (soldering, 10sec ) .......................... +300°C
Note 1:
The output may be shorted to V
DD
, V
SS
, DGND, or AGND if the continuous package power dissipation and current ratings
are not exceeded. Typical short-circuit currents are 20mA.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS—Single +5V Supply
(VDD = 5V ±10%, VSS = 0V, AGND = DGND = REFGND = 0V, REFIN = 2.048V (external), RFB = ROFS = VOUT, C
REFOUT
= 33µF,
R
L
= 10kΩ, C
L
= 100pF, TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER
STATIC PERFORMANCE
Resolution
Relative Accuracy
Differential Nonlinearity
Unipolar Offset Error
Unipolar Offset
Temperature Coefficient
Unipolar Offset-Error
Power-Supply Rejection
Gain Error (Note 2)
Gain-Error Temperature Coefficient
Gain-Error Power-Supply Rejection
DAC VOLTAGE OUTPUT (VOUT)
Output Voltage Range
Resistive Load
DC Output Impedance
Short-Circuit Current
REFERENCE INPUT (REFIN)
Reference Input Range
Reference Input Resistance
Reference Input Capacitance
AC Feedthrough
Code dependent, minimum at code 555hex
Code dependent (Note 4)
(Note 5)
0
40
10
-80
50
V
DD
- 2
V
kΩ
pF
dB
I
SC
VOUT = 2V, load regulation
≤
±1LSB
0
2
0.2
20
V
DD
- 0.4
V
kΩ
Ω
mA
PSRR
4.5V
≤
V
DD
≤
5.5V (Note 3)
N
INL
DNL
V
OS
TCV
OS
PSRR
4.5V
≤
V
DD
≤
5.5V (Note 3)
DAC latch = all 1s,
VOUT < V
DD
- 0.4V
(Note 2)
V
DD
= 5V (Note 2)
Guaranteed monotonic
V
DD
= 5V
MAX530_C/E
0
1
3
0.4
1
MAX530AC/AE
MAX530BC/BE
12
±0.5
±1
±1
8
Bits
LSB
LSB
LSB
ppm/°C
LSB/V
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
GE
MAX530_C/E
1
0.4
±1
LSB
ppm/°C
1
LSB/V
2
_______________________________________________________________________________________
+5V, Low-Power, Parallel-Input,
Voltage-Output, 12-Bit DAC
MAX530
ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)
(VDD = 5V ±10%, VSS = 0V, AGND = DGND = REFGND = 0V, REFIN = 2.048V (external), RFB = ROFS = VOUT, C
REFOUT
= 33µF,
R
L
= 10kΩ, C
L
= 100pF, TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
T
A
= +25°C
Reference Tolerance
Reference Output Resistance
Power-Supply Rejection Ratio
Noise Voltage
Temperature Coefficient
Minimum Required External
Capacitor
DYNAMIC PERFORMANCE
Voltage Output Slew Rate
Voltage Output Settling Time
Digital Feedthrough
Signal-to-Noise Plus
Distortion Ratio
Logic High Input
Logic Low Input
Digital Leakage Current
Digital Input Capacitance
POWER SUPPLIES
Positive Supply-Voltage Range
Positive Supply Current
SWITCHING CHARACTERISTICS
Address to WR Setup
Address to WR Hold
CS to WR Setup
CS to WR Hold
Data to WR Setup
Data to WR Hold
WR Pulse Width
LDAC Pulse Width
CLR Pulse Width
Internal Power-On Reset
Pulse Width
t
AWS
t
AWH
t
CWS
t
CWH
t
DS
t
DH
t
WR
t
LDAC
t
CLR
t
POR
(Note 4)
5
5
0
0
45
0
45
45
45
1.3
10
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
V
DD
I
DD
(Note 6)
Outputs unloaded, all digital inputs = 0V or V
DD
4.5
250
5.5
400
V
µA
SINAD
TA = +25°C
To ±0.5LSB, VOUT = 2V
WR = V
DD
, digital inputs all 1s to all 0s
Unity gain (Note 5)
Gain = 2 (Note 5)
2.4
0.8
V
IN
= 0V or V
DD
8
±1
0.15
0.25
25
5
68
68
V/µs
µs
nV-s
dB
C
MIN
V
REFOUT
R
REFOUT
PSRR
e
n
V
DD
= 5.0V
(Note 8)
4.5V
≤
VDD
≤
5.5V
0.1Hz to 10kHz
MAX530AC/AE
MAX530BC/BE
3.3
400
30
30
50
MAX530BC
MAX530BE
MIN
2.024
2.017
2.013
TYP
2.048
MAX
2.072
2.079
2.083
2
300
Ω
µV/V
µVp-p
ppm/°C
µF
V
UNITS
REFERENCE OUTPUT (REFOUT)
DIGITAL INPUTS (D0-D7,
LDAC
,
CLR
,
CS
,
WR
, A0, A1)
V
IH
V
IL
V
V
µA
pF
_______________________________________________________________________________________
3
+5V, Low-Power, Parallel-Input,
Voltage-Output, 12-Bit DAC
MAX530
ELECTRICAL CHARACTERISTICS—Dual ±5V Supplies
(V
DD
= 5V ±10%, V
SS
= -5V ±10%, AGND = DGND = REFGND = 0V, REFIN = 2.048V (external), RFB = ROFS = VOUT,
C
REFOUT
= 33µF, R
L
= 10kΩ, C
L
= 100pF, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
PARAMETER
STATIC PERFORMANCE
Resolution
Relative Accuracy
Differential Nonlinearity
Bipolar Offset Error
Bipolar Offset
Temperature Coefficient
Bipolar Offset-Error
Power-Supply Rejection
Gain Error
Gain-Error Temperature Coefficient
Gain-Error Power-Supply Rejection
DAC VOLTAGE OUTPUT (VOUT)
Output Voltage Range
Resistive Load
DC Output Impedance
Short-Circuit Current
REFERENCE INPUT (REFIN)
Reference Input Range
Reference Input Resistance
Reference Input Capacitance
AC Feedthrough
Code dependent, minimum at code 555hex
Code dependent (Note 4)
(Note 5)
V
SS
+ 2
40
10
-80
50
V
DD
- 2
V
kΩ
pF
dB
I
SC
VOUT = 2V, load regulation
≤
±1LSB
V
SS
+ 0.4
2
0.2
20
V
DD
- 0.4
V
kΩ
Ω
mA
TC
PSRR
4.5V
≤
V
DD
≤
5.5V, -5.5V
≤
V
SS
≤
-4.5V (Note 3)
N
INL
DNL
V
OS
TCV
OS
PSRR
4.5V
≤
V
DD
≤
5.5V
-5.5V
≤
V
SS
≤
-4.5V (Note 3)
MAX530_C/E
1
0.4
1
V
DD
= 5V, V
SS
= -5V
Guaranteed monotonic
V
DD
= 5V, V
SS
= -5V
MAX530_C/E
0
3
0.4
1
±1
MAX530AC/AE
MAX530BC/BE
12
±0.5
±1.5
±1
±8
Bits
LSB
LSB
LSB
ppm/°C
LSB/V
LSB
ppm/°C
LSB/V
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
REFERENCE OUTPUT (REFOUT)—Specifications
are identical to those under Single +5V Supply
DYNAMIC PERFORMANCE—Specifications
are identical to those under Single +5V Supply
DIGITAL INPUTS (D0-D7,
LDAC
,
CLR
,
CS
,
WR
, A0, A1)—Specifications
are identical to those under Single +5V Supply
POWER SUPPLIES
Positive Supply Voltage
Negative Supply Voltage
Positive Supply Current
Negative Supply Current
V
DD
V
SS
I
DD
I
SS
(Note 6)
(Note 7)
Outputs unloaded, all digital inputs = 0V or V
DD
Outputs unloaded, all digital inputs = 0V or V
DD
4.5
-5.5
250
150
5.5
-4.5
400
200
V
V
µA
µA
SWITCHING CHARACTERISTICS—Specifications
are identical to those under Single +5V Supply
4
_______________________________________________________________________________________
+5V, Low-Power, Parallel-Input,
Voltage-Output, 12-Bit DAC
MAX530
ELECTRICAL CHARACTERISTICS—Dual ±5V Supplies (continued)
(V
DD
= 5V ±10%, V
SS
= -5V ±10%, AGND = DGND = REFGND = 0V, REFIN = 2.048V (external), RFB = ROFS = VOUT,
C
REFOUT
= 33µF, R
L
= 10kΩ, C
L
= 100pF, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
Note 2:
In single supply, INL and GE are calculated from code 11 to code 4095.
Note 3:
Zero Code, Bipolar and Gain Error PSRR are input referred specifications. In Unity Gain, the specification is 500µV.
In Gain = 2 and Bipolar modes, the specification is 1mV.
Note 4:
Guaranteed by design.
Note 5:
REFIN = 1kHz, 2.0Vp-p.
Note 6:
For specified performance, V
DD
= 5V ±10% is guaranteed by PSRR tests.
Note 7:
For specified performance, V
SS
= -5V ±10% is guaranteed by PSRR tests.
Note 8:
Tested at I
OUT
= 100µA. The reference can typically source up to 5mA (see
Typical Operating Characteristics).
__________________________________________Typical Operating Characteristics
(T
A
= +25°C, single supply (+5V), unity gain, code = all 1s, unless otherwise noted).
INTEGRAL NONLINEARITY vs.
DIGITAL INPUT CODE (0–11)
DUAL
SUPPLIES
MAX530-1
INTEGRAL NONLINEARITY vs.
DIGITAL INPUT CODE (11–4095)
0.25
INTEGRAL NONLINEARITY (LSB)
OUTPUT SINK CAPABILITY (mA)
16
14
12
10
8
6
4
2
0
11
512 1024 1536 2048 2560 3072 3584 4095
DIGITAL INPUT CODE (DECIMAL)
0
OUTPUT SINK CAPABILITY vs.
OUTPUT PULL-DOWN VOLTAGE
MAX531-3
0.25
INTEGRAL NONLINEARITY (LSB)
0
-0.50
SINGLE
SUPPLY
0
-1.00
-1.25
0
2
4
6
8
10
12
DIGITAL INPUT CODE (DECIMAL)
-0.25
0.2
0.4
0.6
0.8
1.0
OUTPUT PULL-DOWN VOLTAGE (V)
OUTPUT SOURCE CAPABILITY vs.
OUTPUT PULL-UP VOLTAGE
MAX531-4
ANALOG FEEDTHROUGH vs.
FREQUENCY
-100
ANALOG FEEDTHROUGH (dB)
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
CODE = ALL 0s,
DUAL SUPPLIES (±5V)
2.045
1
10
100
1k
10k
100k
1M
REFIN = 2Vp-p
MAX531-5
REFERENCE VOLTAGE vs.
TEMPERATURE
MAX531-6
8
OUTPUT SOURCE CAPABILITY (mA)
7
6
5
4
3
2
1
0
0
1
2
3
4
5
OUTPUT PULL-UP VOLTAGE (V)
-110
2.055
REFERENCE VOLTAGE (V)
2.050
-60 -40 -20
0 20
40 60 80 100 120 140
FREQUENCY (Hz)
TEMPERATURE (°C)
_______________________________________________________________________________________
5
实时操作系统RTOS
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
