19-0279; Rev 0; 8/94
5V, Low-Power, Parallel-Input,
Voltage-Output, 10-Bit DAC
_______________General Description
The MAX503 is a low-power, 10-bit, voltage-output digital-
to-analog converter (DAC) that uses single 5V or dual ±5V
supplies. This device has an internal voltage reference plus
an output buffer amplifier. Operating current is only 250µA
from a single 5V supply, making it ideal for portable and
battery-powered applications. In addition, the shrink small-
outline package (SSOP) measures only 0.1 square inches,
using less board area than an 8-pin DIP. 10-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 possible without
the use of external resistors or op amps. The parallel logic
inputs are double buffered and are compatible with 4-bit, 8-
bit, and 16-bit microprocessors. For a hardware and soft-
ware compatible 12-bit upgrade, refer to the MAX530 data
sheet. For DACs with similar features but with a serial data
interface, refer to the MAX504/MAX515 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
MAX503
______________Ordering Information
PART
MAX503CNG
MAX503CWG
MAX503CAG
MAX503ENG
MAX503EWG
MAX503EAG
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
24 Narrow Plastic DIP
24 Wide SO
24 SSOP
24 Narrow Plastic DIP
24 Wide SO
24 SSOP
________________________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
Refer to the MAX530 for military temperature or die equivalents.
________________Functional Diagram
REFOUT
18
2.048V
REFERENCE
17
REFGND
14
AGND
POWER-ON
RESET
CLR
A0
A1
CS
WR
LDAC
15
8
9
11
10
16
20
DAC
23
V
DD
DGND
V
SS
VOUT
REFIN ROFS
13
22
21 RFB
__________________Pin Configuration
TOP VIEW
D7/S1
1
D8/D0
2
D9/D1
3
D2
4
D3
5
D4
6
D5
7
A0
8
24
D6/S0
23
V
DD
22
ROFS
21
RFB
MAX503
20
VOUT
19
V
SS
18
REFOUT
17
REFGND
16
LDAC
15
CLR
14
AGND
13
REFIN
MAX503
10-BIT DAC LATCH
DAC LATCH
12
19
CONTROL
LOGIC
NBL
INPUT
LATCH
NBM
INPUT
LATCH
NBH
INPUT
LATCH
A1
9
WR
10
CS
11
DGND
12
DIP/SO/SSOP
24 1 2 3 4 5 6 7
D2 D4
D6/S0 D8/D0
D7/S1 D9/D1 D3 D5
________________________________________________________________
Maxim Integrated Products
1
Call toll free 1-800-998-8800 for free samples or literature.
5V, Low-Power, Parallel-Input,
Voltage-Output, 10-Bit DAC
MAX503
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
MAX503C_G .........................................................0°C to +70°C
MAX503E_G ......................................................-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
(V
DD
= 5V, V
SS
= 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
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 0101...
Code dependent (Note 3)
(Note 4)
0
40
10
-80
50
V
DD
- 2
V
kΩ
pF
dB
I
SC
VOUT = 2V, load regulation
≤
±0.5LSB
0
2
0.2
12
V
DD
- 0.4
V
kΩ
Ω
mA
PSRR
4.5V
≤
V
DD
≤
5.5V
N
INL
DNL
V
OS
TCV
OS
PSRR
GE
4.5V
≤
V
DD
≤
5.5V
DAC latch = all 1s,
VOUT < V
DD
- 0.4V (Note 2)
1
0.1
(Note 2)
Guaranteed monotonic
0
0.25
3
0.1
±1
10
±0.5
±1
3
Bits
LSB
LSB
LSB
ppm/°C
LSB/V
LSB
ppm/°C
LSB/V
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
2
_______________________________________________________________________________________
5V, Low-Power, Parallel-Input,
Voltage-Output, 10-Bit DAC
MAX503
ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)
(V
DD
= 5V, V
SS
= 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
T
A
= +25°C
Reference Tolerance
Reference Output Resistance
Power-Supply Rejection Ratio
Noise Voltage
Temperature Coefficient
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 3)
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
Outputs unloaded, all digital inputs = 0V or V
DD
4.5
250
5.5
400
V
µA
SINAD
T
A
= +25°C
To ±0.5LSB, VOUT = 2V
WR = V
DD
, digital inputs all 1s to all 0s
Unity gain (Note 4)
Gain = 2 (Note 4)
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
REFOUT
3.3
V
REFOUT
R
REFOUT
PSRR
e
n
MAX503C
MAX503E
(Note 5)
4.5V
≤
V
DD
≤
5.5V
0.1Hz to 10kHz
200
400
30
CONDITIONS
MIN
2.024
2.015
2.011
TYP
2.048
MAX
2.072
2.081
2.085
2
Ω
µV/V
µVp-p
ppm/°C
µF
V
UNITS
REFERENCE OUTPUT (REFOUT)
DIGITAL INPUTS (S0, S1, D0–D9, LDAC, CLR, CS, WR, A0, A1)
V
IH
V
IL
V
V
µA
pF
_______________________________________________________________________________________
3
5V, Low-Power, Parallel-Input,
Voltage-Output, 10-Bit DAC
MAX503
ELECTRICAL CHARACTERISTICS—Dual ±5V Supplies
(V
DD
= 5V, V
SS
= -5V, 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
SYMBOL
N
INL
DNL
V
OS
TCV
OS
PSRR
CONDITIONS
MIN
10
TYP
MAX
UNITS
Bits
+0.5
Guaranteed monotonic
±1
±3
3
4.5V
≤
V
DD
≤
5.5V, -5.5V
≤
V
SS
≤
-4.5V
0.1
±1
LSB
LSB
LSB
ppm/°C
LSB/V
LSB
ppm/°C
LSB/V
TC
PSRR
4.5V
≤
V
DD
≤
5.5V, -5.5V
≤
V
SS
≤
-4.5V
V
SS
+ 0.4
VOUT = 2V, load regulation
≤
±0.5LSB
I
SC
V
SS
+ 2
Code dependent, minimum at code 0101...
Code dependent (Note 3)
(Note 4)
40
10
2
1
0.1
V
DD
- 0.4
0.2
20
V
DD
- 2
50
-80
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
V
kΩ
pF
dB
V
kΩ
Ω
mA
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 (S0, S1, D0–D9, 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
V
DD
V
SS
I
DD
Outputs unloaded, all digital inputs = 0V or V
DD
4.5
-5.5
250
150
5.5
0
400
200
V
V
µA
µA
Negative Supply Current
I
SS
Outputs unloaded, all digital inputs = 0V or V
DD
SWITCHING CHARACTERISTICS—Specifications
are identical to those under Single +5V Supply
Note 2:
Note 3:
Note 4:
Note 5:
In single supply, INL and GE are calculated from code 3 to code 1023 (code excludes S0 and S1).
Guaranteed by design.
REFIN = 1kHz, 2.0Vp-p.
Tested at I
OUT
= 100µA. The reference can typically source up to 5mA (see
Typical Operating Characteristics).
4
_______________________________________________________________________________________
5V, Low-Power, Parallel-Input,
Voltage-Output, 10-Bit DAC
__________________________________________Typical Operating Characteristics
(Single +5V supply, unity gain, code = all 1s, T
A
= +25°C, unless otherwise noted.)
OUTPUT SINK CAPABILITY vs.
OUTPUT PULL-DOWN VOLTAGE
MAX503-1
MAX503
OUTPUT SOURCE CAPABILITY vs.
OUTPUT PULL-UP VOLTAGE
MAX503-2
ANALOG FEEDTHROUGH vs.
FREQUENCY
-100
ANALOG FEEDTHROUGH (dB)
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
CODE = ALL 0s,
DUAL SUPPLIES (±5V)
1
10
100
1k
10k
100k
1M
REFIN = 2Vp-p
MAX503-3
16
OUTPUT SINK CAPABILITY (mA)
14
12
10
8
6
4
2
0
0
0.2
0.4
0.6
0.8
8
OUTPUT SOURCE CAPABILITY (mA)
7
6
5
4
3
2
1
0
-110
1.0
0
1
2
3
4
5
OUTPUT PULL-DOWN VOLTAGE (V)
OUTPUT PULL-UP VOLTAGE (V)
FREQUENCY (Hz)
REFERENCE VOLTAGE vs.
TEMPERATURE
MAX503-4
SUPPLY CURRENT vs. TEMPERATURE
MAX503-5
GAIN vs. FREQUENCY
2
0
-2
GAIN (dB)
REFIN = 4Vp-p
MAX503-6
2.055
300
290
SUPPLY CURRENT (µA)
280
270
260
250
240
4
REFERENCE VOLTAGE (V)
-4
-6
-8
-10
-12
-14
DUAL SUPPLIES (±5V)
2.050
2.045
-60 -40 -20
40 60 80 100 120 140
TEMPERATURE (°C)
0 20
230
-60 -40 -20 0
20 40 60 80 100 120 140
TEMPERATURE (°C)
1
100
1k
FREQUENCY (Hz)
10k
100k
AMPLIFIER SIGNAL-TO- NOISE RATIO
MAX503-7
GAIN AND PHASE vs.
FREQUENCY
(G = 2)
(G = 1)
100
GAIN
MAX503-8
80
REFIN = 4Vp-p
SIGNAL-TO-NOISE RATIO (dB)
70
60
200
180
GAIN (dB)
50
40
30
DUAL SUPPLIES (±5V)
20
10
0
10
100
1k
FREQUENCY (Hz)
10k
100k
0
PHASE
-100
0
-200
-300
1
10
100
800
FREQUENCY (kHz)
-180
_______________________________________________________________________________________
PHASE SHIFT (Degrees)
5
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