19-1849; Rev 1; 5/01
+3V/+5V, Serial-Input,
Voltage-Output, 14-Bit DACs
General Description
The MAX5141–MAX5144 are serial-input, voltage-output,
14-bit digital-to-analog converters (DACs) in tiny µMAX
packages, 50% smaller than comparable DACs in an
8-pin SO. They operate from low +3V (MAX5143/
MAX5144) or +5V (MAX5141/MAX5142) single supplies.
They provide 14-bit performance (±1LSB INL and DNL)
over temperature without any adjustments. The DAC out-
put is unbuffered, resulting in a low supply current of
120µA and a low offset error of 2LSBs.
The DAC output range is 0V to V
REF.
For bipolar opera-
tion, matched scaling resistors are provided in the
MAX5142/MAX5144 for use with an external precision op
amp (such as the MAX400), generating a ±V
REF
output
swing.
A 16-bit serial word is used to load data into the DAC
latch. The 25MHz, 3-wire serial interface is compatible
with SPI™/QSPI™/MICROWIRE™, and can interface
directly with optocouplers for applications requiring isola-
tion. A power-on reset circuit clears the DAC output to
code 0 (MAX5141/MAX5143) or code 8192 (MAX5142/
MAX5144) when power is initially applied.
A logic low on
CLR
asynchronously clears the DAC out-
put to code 0 (MAX5141/MAX5143) or code 8192
(MAX5142/MAX5144), independent of the serial interface.
The MAX5141/MAX5143 are available in 8-pin µMAX
packages and the MAX5142/MAX5144 are available in
10-pin µMAX packages.
o
Low 120µA Supply Current
o
Fast 1µs Settling Time
o
25MHz SPI/QSPI/MICROWIRE-Compatible Serial
Interface
o
V
REF
Range Extends to V
DD
o
+5V (MAX5141/MAX5142) or +3V
(MAX5143/MAX5144) Single-Supply Operation
o
Full 14-Bit Performance Without Adjustments
o
Unbuffered Voltage Output Directly Drives 60kΩ
Loads
o
Power-On Reset Circuit Clears DAC Output to
Code 0 (MAX5141/MAX5143) or Code 8192
(MAX5142/MAX5144)
o
Schmitt-Trigger Inputs for Direct Optocoupler
Interface
o
Asynchronous
CLR
Features
o
Miniature (3mm x 5mm) 8-Pin µMAX Package
MAX5141–MAX5144
Pin Configurations
TOP VIEW
REF
1
8
GND
REF 1
CS 2
SCLK 3
10 GND
9 V
DD
Applications
High-Resolution and Gain Adjustment
Industrial Process Control
Automated Test Equipment
Data-Acquisition Systems
CS
2
SCLK
3
DIN
4
MAX5141
MAX5143
7
V
DD
6
OUT
5
CLR
MAX5142
MAX5144
8 RFB
7 INV
6 OUT
DIN 4
CLR 5
µMAX
µMAX
Ordering Information
PART
MAX5141E
UA
MAX5142E
UB
MAX5143E
UA
MAX5144E
UB
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
8 µMAX
10 µMAX
8 µMAX
10 µMAX
INL (LSB)
±1
±1
±1
±1
SUPPLY
RANGE (V)
5
5
3
3
OUTPUT SWING
Unipolar
Bipolar
Unipolar
Bipolar
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
+3V/+5V, Serial-Input,
Voltage-Output, 14-Bit DACs
MAX5141–MAX5144
ABSOLUTE MAXIMUM RATINGS
V
DD
to GND ..............................................................-0.3V to +6V
CS,
SCLK, DIN,
CLR
to GND ...................................-0.3V to +6V
REF to GND................................................-0.3V to (V
DD
+ 0.3V)
OUT, INV to GND .....................................................-0.3V to V
DD
RFB to INV ...................................................................-6V to +6V
RFB to GND.................................................................-6V to +6V
Maximum Current into Any Pin............................................50mA
Continuous Power Dissipation (T
A
= +70°C)
8-Pin µMAX (derate 4.5mW/°C above +70°C)...............362mW
10-Pin µMAX (derate 5.6mW/°C above +70°C).............444mW
Operating Temperature Ranges
MAX514_ EUA ...................................................-40°C to +85°C
MAX514_ EUB ...................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Maximum Die Temperature..............................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
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
(V
DD
= +3V (MAX5143/MAX5144) or +5V (MAX5141/MAX5142), V
REF
= +2.5V, T
A
= T
MIN
to T
MAX
, C
L
= 10pF, GND = 0, R
L
=
∞,
unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
14
±0.5
±0.5
±0.05
±10
±0.1
R
OUT
(Note 2)
R
FB
/R
INV
Ratio error
BZS
TC
PSR
+2.7V
≤
V
DD
≤
+3.3V (MAX5143/MAX5144)
+4.5V
≤
V
DD
≤
+5.5V (MAX5141/MAX5142)
(Note 3)
Unipolar mode
Bipolar mode
2.0
10
6
15
1
7
0.2
±0.5
±1
±1
V
DD
6.2
1
±0.03
±20
±1
±1
±2
TYP
MAX
UNITS
Bits
LSB
LSB
LSB
ppm/°C
LSB
ppm/°C
kΩ
STATIC PERFORMANCE—ANALOG SECTION
Resolution
N
Differential Nonlinearity
Integral Nonlinearity
Zero-Code Offset Error
Zero-Code Tempco
Gain Error (Note 1)
Gain-Error Tempco
DAC Output Resistance
Bipolar Resistor Matching
Bipolar Zero Offset Error
Bipolar Zero Tempco
Power-Supply Rejection
REFERENCE INPUT
Reference Input Range
Reference Input Resistance
(Note 4)
DNL
INL
ZSE
ZS
TC
Guaranteed monotonic
MAX514_
%
LSB
ppm/°C
LSB
V
REF
R
REF
V
kΩ
DYNAMIC PERFORMANCE—ANALOG SECTION
Voltage-Output Slew Rate
SR
(Note 5)
Output Settling Time
DAC Glitch Impulse
Digital Feedthrough
To ±
1
/
2
LSB of FS
Major-carry transition
Code = 0000 hex;
CS
= V
DD
;
SCLK, DIN = 0V to V
DD
levels
V/µs
µs
nV-s
nV-s
2
_______________________________________________________________________________________
+3V/+5V, Serial-Input,
Voltage-Output, 14-Bit DACs
MAX5141–MAX5144
ELECTRICAL CHARACTERISTICS (continued)
PARAMETER
Reference -3dB Bandwidth
Reference Feedthrough
Signal-to-Noise Ratio
Reference Input Capacitance
SNR
C
INREF
Code = 0000 hex
Code = 3FFF hex
2.4
0.8
±1
(Note 6)
3
0.15
MAX5143/MAX5144
MAX5141/MAX5142
All digital inputs at V
DD
or GND
All digital inputs at
V
DD
or GND
MAX5143/MAX5144
MAX5141/MAX5142
2.7
4.5
0.12
0.36
0.60
3.6
5.5
0.20
10
SYMBOL
BW
(V
DD
= +3V (MAX5143/MAX5144) or +5V (MAX5141/MAX5142), V
REF
= +2.5V, T
A
= T
MIN
to T
MAX
, C
L
= 10pF, GND = 0, RL =
∞,
unless otherwise noted. Typical values are at T
A
= +25°C.)
CONDITIONS
Code = 3FFF hex
Code = 0000 hex, V
REF
= 1V
P-P
at 100kHz
MIN
TYP
1
1
92
70
170
MAX
UNITS
MHz
mV
P-P
dB
pF
DYNAMIC PERFORMANCE—REFERENCE SECTION
STATIC PERFORMANCE—DIGITAL INPUTS
Input High Voltage
Input Low Voltage
Input Current
Input Capacitance
Hysteresis Voltage
POWER SUPPLY
Positive Supply Range (Note 7)
Positive Supply Current
Power Dissipation
V
DD
I
DD
PD
V
mA
mW
V
IH
V
IL
I
IN
C
IN
V
H
V
V
µA
pF
V
TIMING CHARACTERISTICS
(V
DD
= +2.7V to +3.3V (MAX5143/MAX5144), V
DD
= +4.5V to +5.5V (MAX5141/MAX5142), V
REF
= +2.5V, GND = 0, CMOS inputs,
T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Figure 1)
PARAMETER
SCLK Frequency
SCLK Pulse Width High
SCLK Pulse Width Low
CS
Low to SCLK High Setup
CS
High to SCLK High Setup
SCLK High to
CS
Low Hold
SCLK High to
CS
High Hold
DIN to SCLK High Setup
DIN to SCLK High Hold
CLR
Pulse Width Low
V
DD
High to
CS
Low
(Power-Up Delay)
SYMBOL
f
CLK
t
CH
t
CL
t
CSS0
t
CSS1
t
CSH0
t
CSH1
t
DS
t
DH
t
CLW
(Note 6)
20
20
15
15
35
20
15
0
20
20
CONDITIONS
MIN
TYP
MAX
25
UNITS
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
Note 1:
Gain error tested at V
REF
= +2.0V, +2.5V, and +3.0V (MAX5143/MAX5144) or V
REF
= +2.0V, +2.5V, +3.0V, and +5.0V
(MAX5141/MAX5142).
Note 2:
R
OUT
tolerance is typically ±20%.
Note 3:
Min/max range guaranteed by gain-error test. Operation outside min/max limits will result in degraded performance.
Note 4:
Reference input resistance is code dependent, minimum at 2155 hex in unipolar mode, 1155 hex in bipolar mode.
Note 5:
Slew-rate value is measured from 10% to 90%.
Note 6:
Guaranteed by design. Not production tested.
Note 7:
Guaranteed by power-supply rejection test and
Timing Characteristics.
_______________________________________________________________________________________
3
+3V/+5V, Serial-Input, Voltage-Output, 14-Bit
DACs
MAX5141–MAX5144
Typical Operating Characteristics
(V
DD
= +3V (MAX5143/MAX5144) or +5V (MAX5141/MAX5142), V
REF
= +2.5V, T
A
= T
MIN
to T
MAX
, GND = 0, R
L
=
∞,
unless otherwise
noted. Typical values are at T
A
= +25°C.)
SUPPLY CURRENT
vs. REFERENCE VOLTAGE
MAX5141/44 toc01
MAX5141/44 toc02
SUPPLY CURRENT vs. TEMPERATURE
0.150
0.125
SUPPLY CURRENT (mA)
0.100
0.075
0.050
0.025
0
-40
-15
10
35
60
85
TEMPERATURE (°C)
V
DD
= +5V
V
DD
= +3V
0.12
0.11
SUPPLY CURRENT (mA)
0.10
0.09
0.08
0.07
0.06
0.05
SUPPLY CURRENT
vs. REFERENCE VOLTAGE
MAX5141/44 toc03
0.12
0.11
SUPPLY CURRENT (mA)
0.10
0.09
0.08
0.07
0.06
0.05
V
DD
= +3V
V
DD
= +5V
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
REFERENCE VOLTAGE (V)
0
0.5
1.0
1.5
2.0
2.5
3.0
REFERENCE VOLTAGE (V)
ZERO-CODE OFFSET ERROR
vs. TEMPERATURE
MAX5141 toc04
INTEGRAL NONLINEARITY
vs. TEMPERATURE
MAX5141 toc05
DIFFERENTIAL NONLINEARITY
vs. TEMPERATURE
MAX5141 toc06
0.4
0.3
OFFSET ERROR (LSB)
0.2
0.8
0.6
0.4
INL (LSB)
0.2
0
-0.2
-0.4
-INL
+INL
0.2
0.1
0
DNL (LSB)
-0.1
-0.2
-0.3
-0.4
-DNL
+DNL
0.1
0
-0.1
-0.2
-40
-15
10
35
60
85
TEMPERATURE (°C)
-40
-15
10
35
60
85
-40
-15
10
35
60
85
TEMPERATURE (°C)
TEMPERATURE (°C)
GAIN ERROR vs. TEMPERATURE
MAX5141 toc07
DIFFERENTIAL NONLINEARITY vs. CODE
0.5
0.4
0.3
0.2
DNL (LSB)
INL (LSB)
0.1
0.0
-0.1
-0.2
-0.3
-0.4
MAX5141 toc08
INTEGRAL NONLINEARITY vs. CODE
1.0
0.8
0.6
0.4
0.2
0.0
-0.2
-0.4
-0.6
-0.8
-1.0
MAX5141 toc09
0
-0.05
GAIN ERROR (LSB)
-0.10
-0.15
-0.20
-0.25
-0.30
-40
-15
10
35
60
-0.5
85
0
2.50k 5.00k 7.50k 10.00k 12.50k 15.00k
CODE
TEMPERATURE (°C)
0
2.50k 5.00k 7.50k 10.00k 12.50k 15.00k
CODE
4
_______________________________________________________________________________________
+3V/+5V, Serial-Input,
Voltage-Output, 14-Bit DACs
MAX5141–MAX5144
Typical Operating Characteristics (continued)
(V
DD
= +3V (MAX5143/MAX5144) or +5V (MAX5141/MAX5142), V
REF
= +2.5V, T
A
= T
MIN
to T
MAX
, GND = 0, R
L
=
∞,
unless otherwise
noted. Typical values are at T
A
= +25°C.)
REFERENCE CURRENT
vs. DIGITAL INPUT CODE
MAX5141 toc10
FULL-SCALE STEP RESPONSE
(FALLING)
MAX5141/44 toc11
FULL-SCALE STEP RESPONSE
(RISING)
MAX5141/44 toc12
140
120
REFERENCE CURRENT (µA)
100
80
60
40
20
0
0
5k
10k
INPUT CODE
15k
CS
2V/div
CS
2V/div
A
OUT
2V/div
C
L
= 20pF
20k
400ns/div
400ns/div
C
L
= 20pF
A
OUT
2V/div
MAJOR-CARRY GLITCH
(RISING)
MAX5141/44 toc13
MAJOR-CARRY GLITCH
(FALLING)
MAX5141/44 toc14
DIGITAL FEEDTHROUGH
MAX5141/44 toc15
CS
1V/div
CS
1V/div
D
IN
2V/div
A
OUT
20mV/div
C
L
= 20pF
200ns/div
200ns/div
C
L
= 20pF
A
OUT
20mV/div
A
OUT
10mV/div
50ns/div
INTEGRAL NONLINEARITY vs.
REFERENCE VOLTAGE
MAX5141 toc16
UNIPOLAR POWER-ON GLITCH
(REF = V
DD
)
0.70
0.65
0.60
INL (LSB)
0.55
0.50
0.45
0.40
2.0
2.5
3.0
3.5
4.0
4.5
MAX5141/44 toc17
V
DD
2V/div
V
OUT
10mV/div
5.0
50ms/div
REFERENCE VOLTAGE (V)
_______________________________________________________________________________________
5
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
