19-1577; Rev 0; 10/99
Dual, 10-Bit, 40MHz, Current/Voltage
Simultaneous-Output DACs
General Description
The MAX5180 contains two 10-bit, simultaneous-
update, current output digital-to-analog converters
(DACs) designed for superior performance in communi-
cations systems requiring analog signal reconstruction
with low distortion and low-power operation. The
MAX5183 provides equal specifications, with on-chip
precision resistors for voltage output operation. Both
devices are designed for 10pVs glitch operation to min-
imize unwanted spurious signal components at the out-
put. An on-board +1.2V bandgap circuit provides a
well-regulated, low-noise reference that can be dis-
abled for external reference operation.
The MAX5180/MAX5183 are designed to provide a high
level of signal integrity for the least amount of power dis-
sipation. Both DACs operate from a single supply of
+2.7V to +3.3V. Additionally, these DACs have three
modes of operation: normal, low-power standby, and
complete shutdown, which provides the lowest possible
power dissipation with 1µA (max) shutdown current. A
fast wake-up time (0.5µs) from standby mode to full DAC
operation conserves power by activating the DACs only
when required.
The MAX5180/MAX5183 are packaged in a 28-pin QSOP
and are specified for the extended (-40°C to +85°C)
temperature range. For lower-resolution, dual 8-bit
versions, refer to the MAX5186/MAX5189 data sheet.
Features
o
+2.7V to +3.3V Single-Supply Operation
o
Wide Spurious-Free Dynamic Range: 70dB
at f
OUT
= 2.2MHz
o
Fully Differential Outputs for Each DAC
o
±0.5% FSR Gain Mismatch
o
±0.2° Phase Mismatch
o
Low-Current Standby or Full Shutdown Modes
o
Internal +1.2V Low-Noise Bandgap Reference
o
Small 28-Pin QSOP Package
MAX5180/MAX5183
Ordering Information
PART
MAX5180BEEI
MAX5183BEEI
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
28 QSOP
28 QSOP
Pin Configuration
Applications
Signal Reconstruction of I and Q
Transmit Signals
Digital Signal Processing
Arbitrary Waveform Generation (AWG)
Imaging
TOP VIEW
CREF1 1
OUT1P 2
OUT1N 3
AGND 4
AV
DD
5
DACEN 6
PD 7
CS 8
CLK 9
N.C. 10
REN 11
D0 12
D1 13
D2 14
28 CREF2
27 OUT2P
26 OUT2N
25 REFO
24 REFR
MAX5180
MAX5183
23 DGND
22 DV
DD
21 D9
20 D8
19 D7
18 D6
17 D5
16 D4
15 D3
QSOP
________________________________________________________________
Maxim Integrated Products
1
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.
Dual, 10-Bit, 40MHz, Current/Voltage
Simultaneous-Output DACs
MAX5180/MAX5183
ABSOLUTE MAXIMUM RATINGS
AV
DD
, DV
DD
to AGND, DGND .................................-0.3V to +6V
Digital Inputs to DGND.............................................-0.3V to +6V
OUT1P, OUT1N, OUT2P, OUT2N, CREF1,
CREF2 to AGND ...................................................-0.3V to +6V
V
REF
to AGND ..........................................................-0.3V to +6V
AGND to DGND.....................................................-0.3V to +0.3V
AV
DD
to DV
DD
.................................................................... ±3.3V
Maximum Current into Any Pin............................................50mA
Continuous Power Dissipation (T
A
= +70°C)
28-Pin QSOP (derate 9.00mW/°C above +70°C)....... 725mW
Operating Temperature Range
MAX518_BEEI.................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) ............................ +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
(AV
DD
= DV
DD
= +3V ±10%, AGND = DGND = 0, f
CLK
= 40MHz, I
FS
= 1mA, 400Ω differential output, C
L
= 5pF, T
A
= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
STATIC PERFORMANCE
Resolution
Integral Nonlinearity
Differential Nonlinearity
Zero-Scale Error
Full-Scale Error
DYNAMIC PERFORMANCE
Output Settling Time
Glitch Impulse
Spurious-Free Dynamic Range
to Nyquist
Total Harmonic Distortion to
Nyquist
Signal-to-Noise Ratio to Nyquist
DAC-to-DAC Output Isolation
Clock and Data Feedthrough
Output Noise
Gain Mismatch Between
DAC Outputs
Phase Mismatch Between
DAC Outputs
ANALOG OUTPUT
Full-Scale Output Voltage
Voltage Compliance of Output
Output Leakage Current
Full-Scale Output Current
DAC External Output Resistor
Load
I
FS
R
L
DACEN = 0, MAX5180 only
MAX5180 only
MAX5180 only
V
FS
-0.3
-1
0.5
1
400
400
0.8
1
1.5
mV
V
µA
mA
Ω
f
OUT
= 2.2MHz
f
OUT
= 2.2MHz
SFDR
THD
SNR
f
CLK
= 40MHz
f
CLK
= 40MHz
f
CLK
= 40MHz
f
OUT
= 2.2MHz
All 0s to all 1s
f
OUT
= 550kHz
f
OUT
= 2.2MHz
f
OUT
= 550kHz
f
OUT
= 2.2MHz
f
OUT
= 550kHz
f
OUT
= 2.2MHz
56
57
To ±0.5LSB error band
25
10
72
70
-70
-68
61
59
-60
50
10
±0.5
±0.15
±1
-63
ns
pVs
dBc
dB
dB
dB
nVs
pA/√Hz
%FSR
degrees
N
INL
DNL
Guaranteed monotonic
MAX5180
MAX5183
(Note 1)
10
-2
-1
-2
-8
-40
±15
±0.5
±0.5
+2
+1
+2
+8
+40
Bits
LSB
LSB
LSB
LSB
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
2
_______________________________________________________________________________________
Dual, 10-Bit, 40MHz, Current/Voltage
Simultaneous-Output DACs
ELECTRICAL CHARACTERISTICS (continued)
(AV
DD
= DV
DD
= +3V ±10%, AGND = DGND = 0, f
CLK
= 40MHz, I
FS
= 1mA, 400Ω differential output, C
L
= 5pF, T
A
= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
REFERENCE
Output Voltage Range
Output Voltage Temperature
Drift
Reference Output Drive
Capability
Reference Supply Rejection
Current Gain (I
FS
/ I
REF
)
POWER REQUIREMENTS
Analog Power-Supply Voltage
Analog Supply Current
Digital Power-Supply Voltage
Digital Supply Current
Standby Current
Shutdown Current
LOGIC INPUTS AND OUTPUTS
Digital Input Voltage High
Digital Input Voltage Low
Digital Input Current
Digital Input Capacitance
TIMING CHARACTERISTICS
DAC1 DATA to CLK Rise
Setup Time
DAC2 DATA to CLK Fall
Setup Time
DAC1 CLK Rise to DATA
Hold Time
DAC2 CLK Fall to DATA
Hold Time
CS
Fall to CLK Rise Time
CS
Fall to CLK Fall Time
DACEN Rise Time to V
OUT_
PD Fall Time to V
OUT_
Clock Period
Clock High Time
Clock Low Time
t
CP
t
CH
t
CL
25
10
10
t
DS1
t
DS2
t
DH1
t
DH2
10
10
0
0
5
5
0.5
50
ns
ns
ns
ns
ns
ns
µs
µs
ns
ns
ns
3
V
IH
V
IL
I
IN
C
IN
V
IN
= 0 or DV
DD
10
2
0.8
±1
V
V
µA
pF
AV
DD
I
AVDD
DV
DD
I
DVDD
I
STANDBY
I
SHDN
PD = 0, DACEN = 1, digital inputs at 0
or DV
DD
PD = 0, DACEN = 0, digital inputs at 0
or DV
DD
PD = 1, DACEN = X, digital inputs at 0
or DV
DD
(X = don’t care)
PD = 0, DACEN = 1, digital inputs at 0
or DV
DD
2.7
4.2
1.0
0.5
2.7
2.7
3.3
5.0
3.3
5.0
1.5
1.0
V
mA
V
mA
mA
µA
V
REF
TCV
REF
I
REFOUT
1.12
1.2
50
10
0.5
8
1.28
V
ppm/°C
µA
mV/V
mA/mA
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MAX5180/MAX5183
_______________________________________________________________________________________
Dual, 10-Bit, 40MHz, Current/Voltage
Simultaneous-Output DACs
MAX5180/MAX5183
Typical Operating Characteristics
(AV
DD
= DV
DD
= +3V, AGND = DGND = 0, 400Ω differential output, I
FS
= 1mA, C
L
= 5pF, T
A
= +25°C, unless otherwise noted.)
ANALOG SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX5180/83-03
INTEGRAL NONLINEARITY vs. INPUT CODE
MAX5180/83-01
DIFFERENTIAL NONLINEARITY vs. INPUT CODE
MAX5180/83-02
0.6
0.5
0.4
0.4
0.3
0.2
2.55
2.53
SUPPLY CURRENT (mA)
MAX5183
MAX5180
0.3
INL (LSB)
DNL (LSB)
0.1
0
-0.1
-0.2
-0.3
0
128 256 384 512 640 768 896 1024
INPUT CODE
0.2
0.1
0
-0.1
-0.2
0
128 256 384 512 640 768 896 1024
INPUT CODE
2.51
2.49
2.47
2.45
2.5
3.0
3.5
4.0
4.5
5.0
5.5
SUPPLY VOLTAGE (V)
ANALOG SUPPLY CURRENT vs. TEMPERATURE
MAX5180/83-04
DIGITAL SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX5180/83-05
DIGITAL SUPPLY CURRENT
vs. TEMPERATURE
MAX5180/83-06
4.0
ANALOG SUPPLY CURRENT (mA)
10
DIGITAL SUPPLY CURRENT (mA)
5
DIGITAL SUPPLY CURRENT (mA)
MAX5183
4
3.5
8
MAX5180
MAX5183
4
3.0
MAX5183
2.5
MAX5180
6
3
MAX5180
2
2.0
2
1
1.5
-40
-15
10
35
60
85
TEMPERATURE (°C)
0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
SUPPLY VOLTAGE (V)
0
-40
-15
10
35
60
85
TEMPERATURE (°C)
STANDBY CURRENT vs. SUPPLY VOLTAGE
MAX5180/83-07
STANDBY CURRENT vs. TEMPERATURE
MAX5180/83-08
SHUTDOWN CURRENT vs. SUPPLY VOLTAGE
MAX5180/83-09
610
600
590
STANDBY CURRENT (µA)
MAX5183
580
570
MAX5180
560
550
540
0.80
0.75
SHUITDOWN CURRENT (µA)
0.70
MAX5183
0.65
0.60
0.55
0.50
0.45
MAX5180
STANDBY CURRENT (µA)
600
MAX5180
590
580
MAX5183
570
560
2.5
3.0
3.5
4.0
4.5
5.0
5.5
SUPPLY VOLTAGE (V)
-40
-15
10
35
60
85
2.5
3.0
3.5
4.0
4.5
5.0
5.5
TEMPERATURE (°C)
SUPPLY VOLTAGE (V)
4
_______________________________________________________________________________________
Dual, 10-Bit, 40MHz, Current/Voltage
Simultaneous-Output DACs
Typical Operating Characteristics (continued)
(AV
DD
= DV
DD
= +3V, AGND = DGND = 0, 400Ω differential output, I
FS
= 1mA, C
L
= 5pF, T
A
= +25°C, unless otherwise noted.)
INTERNAL REFERENCE VOLTAGE
vs. SUPPLY VOLTAGE
MAX5180/83-10
MAX5180/MAX5183
INTERNAL REFERENCE VOLTAGE
vs. TEMPERATURE
MAX5180/83-11
OUTPUT CURRENT vs. REFERENCE CURRENT
MAX5180/83-12
1.28
1.28
4
REFERENCE VOLTAGE (V)
REFERENCE VOLTAGE (V)
1.27
1.27
1.26
MAX5180
MAX5183
1.24
1.26
MAX5183
1.25
MAX5180
1.24
OUTPUT CURRENT (mA)
3
2
1.25
1
1.23
2.5
3.0
3.5
4.0
4.5
5.0
5.5
SUPPLY VOLTAGE (V)
1.23
-40
-15
10
35
60
85
TEMPERATURE (°C)
0
0
100
200
300
400
500
REFERENCE CURRENT (µA)
DYNAMIC RESPONSE RISE TIME
MAX5180/83-13
DYNAMIC RESPONSE FALL TIME
MAX5180/83-14
SETTLING TIME
MAX5180/83-15
OUT_P
150mV/
div
OUT_P
150mV/
div
OUT_N
100mV/
div
OUT_N
150mV/
div
OUT_N
150mV/
div
OUT_P
100mV/
div
50ns/div
50ns/div
12.5ns/div
FFT PLOT, DAC1
MAX5180/83-16
FFT PLOT, DAC2
MAX5180/83-17
SPURIOUS-FREE DYNAMIC RANGE
vs. CLOCK FREQUENCY
MAX5180/83-18
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
0
2
4
6
8
f
OUT
= 2.2MHz
f
CLK
= 40MHz
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
f
OUT
= 2.2MHz
f
CLK
= 40MHz
100
90
80
SFDR (dBc)
DAC2
70
60
50
40
DAC1
(dBc)
(dBc)
10 12 14 16 18 20
0
2
4
6
8
10 12 14 16 18 20
10 15 20 25 30 35 40 45 50 55 60
CLOCK FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
_______________________________________________________________________________________
5
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