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MAX544BCPA+

P1-P3P4-P6P7-P9P10-P12
General Description
The MAX544/MAX545 are serial-input, voltage-output,
14-bit digital-to-analog converters (DACs) that operate
from a single +5V supply. They provide 14-bit perfor-
mance (±0.5LSB INL and ±0.9LSB DNL) over tempera-
ture without any adjustments. The DAC output is
unbuffered, resulting in a low supply current of 0.3mA
and a low offset error of 0.6mV.
The DAC output range is 0V to V
REF.
For bipolar opera-
tion, matched scaling resistors are provided in the
MAX545 for use with an external precision op amp
(such as the MAX400), generating a ±V
REF
output
swing. The MAX545 also includes Kelvin-sense con-
nections for the reference and analog ground pins to
reduce layout sensitivity.
A 16-bit serial word is used to load data into the DAC
latch. The 10MHz, 3-wire serial interface is compatible
with SPI™/QSPI™/MICROWIRE™, and it also interfaces
directly with optocouplers for applications requiring isola-
tion. A power-on reset circuit clears the DAC output to 0V
(unipolar mode) when power is initially applied.
The MAX544 is available in 8-pin plastic DIP and SO
packages. The MAX545 is available in 14-pin plastic
DIP and SO packages.
Applications
Digital Offset and Gain Adjustment
Instrumentation
Industrial Process Control
Automated Test Equipment
Data-Acquisition Systems
Features
♦ Full 14-Bit Performance Without Adjustments
♦ +5V Single-Supply Operation
♦ Low Power: 1.5mW
♦ 1µs Settling Time
♦ Unbuffered Voltage Output Directly Drives 60kΩ
Loads
♦ SPI/QSPI/MICROWIRE-Compatible Serial Interface
♦ Power-On Reset Circuit Clears DAC Output to 0V
(unipolar mode)
♦ Schmitt-Trigger Inputs for Direct Optocoupler
Interface
♦ Pin-Compatible 16-Bit Upgrades
(MAX541/MAX542)
MAX544/MAX545
+5V, Serial-Input, Voltage-Output, 14-Bit DACs
________________________________________________________________ Maxim Integrated Products 1
14
13
12
11
10
9
8
1
2
3
4
5
6
7
V
DD
INV
DGND
LDAC
AGNDS
AGNDF
OUT
RFB
TOP VIEW
MAX545
DIN
N.C.
SCLK
CS
REFF
REFS
DIP/SO
DIN
REF
SCLK
CS
1
2
8
7
V
DD
DGND
AGND
OUT
MAX544
3
4
6
5
DIP/SO
Pin Configurations
14-BIT DAC
DATA LATCH
SERIAL INPUT REGISTER
CONTROL
LOGIC
MAX545
REFF
REFS
CS
DIN
SCLK
AGNDS
AGNDF
OUT
INV
RFB
V
DD
DGND
LDAC
R
FB
R
INV
Functional Diagrams
19-1088; Rev 3; 12/99
PART
MAX544ACPA
MAX544BCPA
MAX544ACSA 0°C to +70°C
0°C to +70°C
0°C to +70°C
TEMP. RANGE PIN-PACKAGE
8 Plastic DIP
8 Plastic DIP
8 SO
Ordering Information
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
MAX544BCSA 0°C to +70°C 8 SO
INL
(LSB)
±1/2
±1
±1/2
±1
Ordering Information continued at end of data sheet.
Functional Diagrams continued at end of data sheet.
MAX544/MAX545
+5V, Serial-Input, Voltage-Output, 14-Bit DACs
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
DD
= +5V ± 5%, V
REF
= +2.5V, AGND = DGND = 0, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
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.
V
DD
to DGND ...........................................................-0.3V to +6V
CS, SCLK, DIN, LDAC to DGND ..............................-0.3V to +6V
REF, REFF, REFS to AGND ........................-0.3V to (V
DD
+ 0.3V)
AGND, AGNDF, AGNDS to DGND .......................-0.3V to +0.3V
OUT, INV to AGND DGND .......................................-0.3V to V
DD
RFB to AGND DGND...................................................-6V to +6V
Maximum Current into Any Pin............................................50mA
Continuous Power Dissipation (T
A
= +70°C)
8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) .....727mW
8-Pin SO (derate 5.88mW/°C above +70°C) .................471mW
14-Pin Plastic DIP (derate 10.00mW/°C above +70°C) ...800mW
14-Pin SO (derate 8.33mW/°C above +70°C) ...............667mW
14-Pin Ceramic SB (derate 10.00mW/°C above +70°C...800mW
Operating Temperature Ranges
MAX544 _C_ A/MAX545_C_D ..............................0°C to +70°C
MAX544 _E_ A/MAX545_E_D............................-40°C to +85°C
MAX545BMJD .................................................-55°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
MAX545, bipolar mode
Unipolar mode
(Note 3)
4.75V ≤ V
DD
≤ 5.25V
MAX545
Ratio error
V
DD
= 5V
R
FB
/R
INV
(Note 2)
CONDITIONS
kΩ
9.0
R
REF
Reference Input Resistance
(Note 4)
11.5
V2.0 3.0V
REF
Reference Input Range
PSRPower-Supply Rejection LSB±1.0
ppm/°C±0.5BZS
TC
Bipolar Zero Tempco
±10
±0.03
Bipolar Resistor Matching
1.0
R
OUT
DAC Output Resistance kΩ6.25
±0.15 ±0.5
Bits14NResolution
ppm/°C±0.1Gain-Error Tempco
LSBGain Error (Note 1) ±5
ppm/°C±0.05ZS
TC
Zero-Code Tempco
LSBINLIntegral Nonlinearity
±0.6Zero-Code Offset Error
UNITSMIN TYP MAXSYMBOLPARAMETER
ZSE mV
MAX54_A
Bipolar Zero Offset Error
C
L
= 10pF (Note 5) 25 V/µsSRVoltage-Output Slew Rate
DYNAMIC PERFORMANCE—ANALOG SECTION (R
L
= ∞, unipolar mode)
To ±
1
/
2
LSB of FS, C
L
= 10pF
1 µsOutput Settling Time
Major-carry transition 10 nVsDAC Glitch Impulse
Code = 0000 hex; CS = V
DD
; LDAC = 0V;
SCLK, DIN = 0V to V
DD
levels
10 nVsDigital Feedthrough
Guaranteed monotonic LSB±0.15 ±0.9DNLDifferential Nonlinearity
STATIC PERFORMANCE—ANALOG SECTION (R
L
= ∞)
REFERENCE INPUT
MAX545
MAX54_B ±0.15 ±1
LSB
%
MAX545
MAX544/MAX545
+5V, Serial-Input, Voltage-Output, 14-Bit DACs
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +5V ± 5%, V
REF
= +2.5V, AGND = DGND = 0, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
TIMING CHARACTERISTICS
(V
DD
= +5V ± 5%, V
REF
= +2.5V, AGND = DGND = 0, CMOS inputs, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
Note 1: Gain Error tested at V
REF
= 2.0V, 2.5V, and 3.0V.
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 8554 hex.
Note 5: Slew-rate value is measured from 0% to 63%.
Note 6: Guaranteed by design. Not production tested.
Code = FFFC hex
V
IN
= 0
Code = 0000 hex, V
REF
= 1Vp-p at 100kHz
Code = 0000 hex
Code = FFFC hex
(Note 6)
CONDITIONS
mW1.5PDPower Dissipation
mA0.3 1.1I
DD
Positive Supply Current
V4.75 5.25V
DD
Positive Supply Range
V0.40V
H
Hysteresis Voltage
pF10C
IN
Input Capacitance
mVp-p1
MHz1BWReference -3dB Bandwidth
µA±1I
IN
Input Current
V0.8V
IL
Input Low Voltage
V2.4V
IH
Input High Voltage
Reference Feedthrough
dB83SNRSignal-to-Noise Ratio
75
pF
120
C
IN
Reference Input Capacitance
UNITSMIN TYP MAXSYMBOLPARAMETER
MAX545 (Note 6)
MAX545
(Note 6)
CONDITIONS
µs20
V
DD
High to CS Low
(power-up delay)
ns45t
CL
SCLK Pulse Width Low
ns45t
CH
MHz10f
SCLK
SCLK Frequency
SCLK Pulse Width High
ns50t
LDACS
CS High to LDAC Low Setup
ns50t
LDAC
LDAC Pulse Width
ns0t
DH
DIN to SCLK High Hold
ns40t
DS
DIN to SCLK High Setup
ns45t
CSS0
CS Low to SCLK High Setup
ns45t
CSS1
CS High to SCLK High Setup
ns30t
CSH0
SCLK High to CS Low Hold
ns45t
CSH1
SCLK High to CS High Hold
UNITSMIN TYP MAXSYMBOLPARAMETER
DYNAMIC PERFORMANCE—REFERENCE SECTION
STATIC PERFORMANCE—DIGITAL INPUTS
POWER SUPPLY
P1-P3P4-P6P7-P9P10-P12

MAX544BCPA+

Mfr. #:
Buy MAX544BCPA+
Manufacturer:
Maxim Integrated
Description:
Digital to Analog Converters - DAC 14-Bit Precision DAC
Lifecycle:
New from this manufacturer.
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