(DACs) include output buffers and an internal reference
that is selectable to be 2.048V, 2.500V, or 4.096V. The
MAX5700/MAX5701/MAX5702 accept a wide supply
voltage range of 2.7V to 5.5V with extremely low power
(1.5mW) consumption to accommodate most low-voltage
applications. A precision external reference input allows
rail-to-rail operation and presents a 100kI (typ) load to
an external reference.
The MAX5700/MAX5701/MAX5702 have an a 50MHz
3-wire SPI/QSPI™/MICROWIRE®/DSP-compatible serial
interface. The DAC output is buffered and has a low sup-
ply current of less than 250FA per channel and a low
offset error of
Q0.5mV
(typ). On power-up, the MAX5700/
MAX5701/MAX5702 reset the DAC outputs to zero, pro-
viding additional safety for applications that drive valves
or other transducers which need to be off on power-up.
The internal reference is initially powered down to allow
use of an external reference. The MAX5700/MAX5701/
MAX5702 allow simultaneous output updates using soft-
ware LOAD commands.
A clear logic input (CLR) allows the contents of the CODE
and the DAC registers to be cleared asynchronously and
sets the DAC outputs to zero. The MAX5700/MAX5701/
MAX5702 are available in a 10-pin µMAXM and an ultra-
small, 10-pin TDFN package and are specified over the
-40NC to +125NC temperature range.
Applications
Functional Diagram
V
DDIO
V
DD
REF
Programmable Voltage and Current Sources
Gain and Offset Adjustment
Automatic Tuning and Optical Control
Power Amplifier Control and Biasing
Process Control and Servo Loops
Portable Instrumentation
Data Acquisition
CSB
SCLK
DIN
CLR
INTERNAL REFERENCE/
EXTERNAL BUFFER
MAX5700
MAX5701
MAX5702
1 OF 2 DAC CHANNELS
CODE
REGISTER
SPI SERIAL
INTERFACE
DAC
LATCH
8 -/10-/12-BIT
DAC
BUFFER
OUTA
OUTB
CODE
CLEAR/
RESET
LOAD
CLEAR/
RESET
POWER-DOWN
100kI
1kI
Ordering Information
appears at end of data sheet.
QSPI is a trademark of Motorola, Inc.
MICROWIRE is a registered trademark of National
Semiconductor Corporation.
µMAX is a registered trademark of Maxim Integrated Products, Inc.
POR
DAC CONTROL LOGIC
GND
19-6455; Rev 2; 8/13
MAX5700/MAX5701/
MAX5702
Absolute Maximum Ratings
Ultra-Small, Dual-Channel, 8-/10-/12-Bit Buffered
Output DACs with Internal Reference
and SPI Interface
Maximum Continuous Current into Any Pin ....................
Q50mA
Operating Temperature Range ........................ -40NC to +125NC
Storage Temperature Range............................ -65NC to +150NC
Lead Temperature (soldering, 10s) ................................+300NC
Soldering Temperature (reflow) .................................... +260NC
V
DD
, V
DDIO
to GND ................................................ -0.3V to +6V
OUT_, REF to GND....-0.3V to the lower of (V
DD
+ 0.3V) and +6V
CSB, SCLK,
CLR
to GND ........................................ -0.3V to +6V
DIN to GND .................................................-0.3V to the lower of
(V
DDIO
+ 0.3V) and +6V
Continuous Power Dissipation (T
A
= +70NC)
µMAX (derate at 8.8mW/NC above 70NC)....................707mW
TDFN (derate at 24.4mW/NC above 70NC) ................1951mW
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional opera-
tion 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.
Package Thermal Characteristics (Note 1)
µMAX
Junction-to-Ambient Thermal Resistance (θ
JA
) ........113NC/W
Junction-to-Case Thermal Resistance (θ
JC
) ...............42NC/W
TDFN
Junction-to-Ambient Thermal Resistance (θ
JA
) ..........41NC/W
Junction-to-Case Thermal Resistance (θ
JC
) .................9NC/W
Note 1:
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to
www.maximintegrated.com/thermal-tutorial.
Electrical Characteristics
(V
DD
= 2.7V to 5.5V, V
DDIO
= 1.8V to 5.5V, V
GND
= 0V, C
L
= 200pF, R
L
= 2kI, T
A
= -40NC to +125NC, unless otherwise noted. Typical
values are at T
A
= +25NC.) (Note 2)
PARAMETER
DC PERFORMANCE (Note 3)
MAX5700
Resolution and Monotonicity
N
MAX5701
MAX5702
MAX5700
Integral Nonlinearity (Note 4)
INL
MAX5701
MAX5702
MAX5700
Differential Nonlinearity (Note 4)
Offset Error (Note 5)
Offset Error Drift
Gain Error (Note 5)
Gain Temperature Coefficient
Zero-Scale Error
Full-Scale Error
With respect to V
REF
GE
With respect to V
REF
0
-0.5
-1.0
DNL
OE
MAX5701
MAX5702
8
10
12
-0.25
-0.5
-1
-0.25
-0.5
-1
-5
Q0.05
Q0.25
Q0.
5
Q0.05
Q0.1
Q0.2
Q0.5
Q10
Q0.1
Q3.0
10
+0.5
+1.0
+0.25
+0.5
+1
+0.25
+0.5
+1
+5
mV
FV/NC
%FS
ppm of
FS/NC
mV
%FS
LSB
LSB
Bits
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
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Maxim Integrated
│
2
MAX5700/MAX5701/
MAX5702
Ultra-Small, Dual-Channel, 8-/10-/12-Bit Buffered
Output DACs with Internal Reference
and SPI Interface
(V
DD
= 2.7V to 5.5V, V
DDIO
= 1.8V to 5.5V, V
GND
= 0V, C
L
= 200pF, R
L
= 2kI, T
A
= -40NC to +125NC, unless otherwise noted. Typical
values are at T
A
= +25NC.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Electrical Characteristics (continued)
DAC OUTPUT CHARACTERISTICS
No load
Output Voltage Range (Note 6)
2kI load to GND
2kI load to V
DD
V
DD
= 3V
Q10%,
|I
OUT
|
P
5mA
V
DD
= 5V
Q10%,
|I
OUT
|
P
10mA
V
DD
= 3V
Q10%,
|I
OUT
|
P
5mA
V
DD
= 5V
Q10%,
|I
OUT
|
P
10mA
0
0
0.2
300
FV/mA
300
0.3
I
0.3
500
2
Sourcing (output
shorted to GND)
Sinking (output
shorted to V
DD
)
30
mA
50
100
1.0
2.2
2.6
4.5
7
3.5
3.3
0.2
200
50
nV*s
nV*s
nV*s
Fs
Fs
Fs
FV/V
V/Fs
pF
kI
V
DD
V
DD
-
0.2
V
DD
V
Load Regulation
V
OUT
= V
FS
/2
DC Output Impedance
V
OUT
= V
FS
/2
Maximum Capacitive Load
Handling
Resistive Load Handling
C
L
R
L
V
DD
= 5.5V
Short-Circuit Output Current
DC Power-Supply Rejection
DYNAMIC PERFORMANCE
Voltage-Output Slew Rate
Voltage-Output Settling Time
DAC Glitch Impulse
Channel-to-Channel
Feedthrough (Note 7)
Digital Feedthrough
Power-Up Time
SR
V
DD
= 3V
Q10%
or 5V
Q10%
Positive and negative
¼ scale to ¾ scale, to
P
1 LSB, MAX5700
¼ scale to ¾ scale, to
P
1 LSB, MAX5701
¼ scale to ¾ scale, to
P
1 LSB, MAX5702
Major code transition
External reference
Internal reference
Code = 0, all digital inputs from 0V to
V
DDIO
Startup calibration time (Note 8)
From power-down
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Maxim Integrated
│
3
MAX5700/MAX5701/
MAX5702
Ultra-Small, Dual-Channel, 8-/10-/12-Bit Buffered
Output DACs with Internal Reference
and SPI Interface
(V
DD
= 2.7V to 5.5V, V
DDIO
= 1.8V to 5.5V, V
GND
= 0V, C
L
= 200pF, R
L
= 2kI, T
A
= -40NC to +125NC, unless otherwise noted. Typical
values are at T
A
= +25NC.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
External reference
2.048V internal
reference
2.5V internal
reference
4.096V internal
reference
External reference
f = 1kHz
f = 10kHz
f = 1kHz
f = 10kHz
f = 1kHz
f = 10kHz
f = 1kHz
f = 10kHz
f = 0.1Hz to 10Hz
f = 0.1Hz to 10kHz
f = 0.1Hz to 300kHz
2.048V internal
reference
2.5V internal
reference
4.096V internal
reference
External reference
2.048V internal
reference
2.5V internal
reference
4.096V internal
reference
External reference
f = 0.1Hz to 10Hz
f = 0.1Hz to 10kHz
f = 0.1Hz to 300kHz
f = 0.1Hz to 10Hz
f = 0.1Hz to 10kHz
f = 0.1Hz to 300kHz
f = 0.1Hz to 10Hz
f = 0.1Hz to 10kHz
f = 0.1Hz to 300kHz
f = 1kHz
f = 10kHz
f = 1kHz
f = 10kHz
f = 1kHz
f = 10kHz
f = 1kHz
f = 10kHz
f = 0.1Hz to 10Hz
f = 0.1Hz to 10kHz
f = 0.1Hz to 300kHz
2.048V internal
reference
2.5V internal
reference
4.096V internal
reference
f = 0.1Hz to 10Hz
f = 0.1Hz to 10kHz
f = 0.1Hz to 300kHz
f = 0.1Hz to 10Hz
f = 0.1Hz to 10kHz
f = 0.1Hz to 300kHz
f = 0.1Hz to 10Hz
f = 0.1Hz to 10kHz
f = 0.1Hz to 300kHz
MIN
TYP
90
82
112
102
125
110
160
145
12
76
385
14
91
450
15
99
470
16
124
490
114
99
175
153
200
174
295
255
13
94
540
19
143
685
21
159
705
26
213
750
FV
P-P
nV/√Hz
FV
P-P
nV/√Hz
MAX
UNITS
Electrical Characteristics (continued)
Output Voltage-Noise Density
(DAC Output at Midscale)
Integrated Output Noise
(DAC Output at Midscale)
Output Voltage-Noise Density
(DAC Output at Full Scale)
Integrated Output Noise
(DAC Output at Full Scale)
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Maxim Integrated
│
4
MAX5700/MAX5701/
MAX5702
Ultra-Small, Dual-Channel, 8-/10-/12-Bit Buffered
Output DACs with Internal Reference
and SPI Interface
(V
DD
= 2.7V to 5.5V, V
DDIO
= 1.8V to 5.5V, V
GND
= 0V, C
L
= 200pF, R
L
= 2kI, T
A
= -40NC to +125NC, unless otherwise noted. Typical
嵌入式系统
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