19-1582; Rev 2; 12/01
8-Bit, 40MHz, Current/Voltage-Output DACs
General Description
The MAX5187 is an 8-bit, current-output digital-to-ana-
log converter (DAC) designed for superior performance
in signal reconstruction or arbitrary waveform genera-
tion applications requiring analog signal reconstruction
with low distortion and low-power operation. The volt-
age-output MAX5190 provides equal specifications,
with on-chip precision resistors for voltage output oper-
ation. Both devices are designed for a 10pVs glitch
operation to minimize unwanted spurious signal com-
ponents at the output. An on-board +1.2V bandgap cir-
cuit provides a well-regulated, low-noise reference that
can be disabled for external reference operation.
The MAX5187/MAX5190 are designed to provide a high
level of signal integrity for the least amount of power
dissipation. They operate from a single supply of +2.7V
to +3.3V. Additionally, these DACs have three modes of
operation: normal, low-power standby, and full shut-
down, which provides the lowest possible power dissi-
pation with a 1µA (max) shutdown current. A fast
wake-up time (0.5µs) from standby mode to full DAC
operation allows for power conservation by activating
the DAC only when required.
The MAX5187/MAX5190 are packaged in a 24-pin
QSOP and are specified for the extended (-40°C to
+85°C) temperature range. For higher resolution, 10-bit
versions, see the MAX5181/MAX5184 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 Output
o
Low-Current Standby or Full Shutdown Modes
o
Internal +1.2V Low-Noise Bandgap Reference
o
Small 24-Pin QSOP Package
MAX5187/MAX5190
Ordering Information
PART
MAX5187BEEG
MAX5190BEEG
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
24 QSOP
24 QSOP
Pin Configuration
Applications
Signal Reconstruction
Digital Signal Processing
Arbitrary Waveform Generation (AWG)
Imaging Applications
CREF 1
OUTP 2
OUTN 3
AGND 4
AV
DD
5
DACEN 6
PD 7
CS 8
CLK 9
REN 10
DGND 11
DGND 12
24 REFO
23 REFR
22 DGND
21 DV
DD
20 D7
TOP VIEW
MAX5187
MAX5190
19 D6
18 D5
17 D4
16 D3
15 D2
14 D1
13 D0
QSOP
________________________________________________________________
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.
8-Bit, 40MHz, Current/Voltage-Output DACs
MAX5187/MAX5190
ABSOLUTE MAXIMUM RATINGS
AV
DD
, DV
DD
to AGND, DGND .................................-0.3V to +6V
Digital Input to DGND...............................................-0.3V to +6V
OUTP, OUTN, CREF 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)
24-Pin QSOP (derate 9.50mW/°C above +70°C)........762mW
Operating Temperature Ranges
MAX5187BEEG/MAX5190BEEG ....................-40°C to +85°C
Storage Temperature Range .............................-65°C to +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
(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
Clock and Data Feedthrough
Output Noise
ANALOG OUTPUT
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, MAX5187 only
MAX5187 only
MAX5187 only
V
FS
-0.3
-1
0.5
1
400
400
0.8
1
1.5
mV
V
µA
mA
Ω
SFDR
THD
SNR
f
CLK
= 40MHz
f
CLK
= 40MHz
f
CLK
= 40MHz
All 0s to all 1s
f
OUT
= 550kHz
f
OUT
= 2.2MHz, T
A
= +25°C
f
OUT
= 550kHz
f
OUT
= 2.2MHz, T
A
= +25°C
f
OUT
= 550kHz
f
OUT
= 2.2MHz, T
A
= +25°C
46
57
To ±0.5LSB error band
25
10
72
70
-70
-68
52
52
50
10
-63
ns
pVs
dBc
dB
dB
nVs
pA/√Hz
N
INL
DNL
Guaranteed monotonic
MAX5182
MAX5191
(Note 1)
8
-1
-1
-1
-4
-20
±4
±0.25
±0.25
+1
+1
+1
+4
+20
Bits
LSB
LSB
LSB
LSB
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
2
_______________________________________________________________________________________
8-Bit, 40MHz, Current/Voltage-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
DAC DATA to CLK Rise
Setup Time
DAC CLK Rise 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
CLK
t
CH
t
CL
25
10
10
t
DS
t
DH
10
0
5
5
0.5
50
ns
ns
ns
ns
µs
µs
ns
ns
ns
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
0.5
2.7
1.7
3.3
4
3.3
5
1.5
1
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
MAX5187/MAX5190
Note 1:
Excludes reference and reference resistor (MAX5190) tolerance.
_______________________________________________________________________________________
3
8-Bit, 40MHz, Current/Voltage-Output DACs
MAX5187/MAX5190
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.)
INTEGRAL NONLINEARITY
vs. INPUT CODE
0.125
0.100
DNL (LSB)
0.075
INL (LSB)
0.050
0.025
0
-0.025
-0.050
0
32
64
96
128 160 192 224 256
INPUT CODE
-0.025
-0.050
-0.075
0
32
64
96
128 160 192 224 256
INPUT CODE
1.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
SUPPLY VOLTAGE (V)
MAX5187/90-01
DIFFERENTIAL NONLINEARITY
vs. INPUT CODE
MAX5187/90-02
ANALOG SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX5187/90-03
0.150
0.100
0.075
0.050
0.025
0
3.0
ANALOG SUPPLY CURRENT (mA)
2.5
2.0
MAX5190
1.5
MAX5187
ANALOG SUPPLY CURRENT
vs. TEMPERATURE
MAX5187/90-04
DIGITAL SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX5187/90-05
DIGITAL SUPPLY CURRENT
vs. TEMPERATURE
MAX5187/90-06
3.0
ANALOG SUPPLY CURRENT (mA)
8
DIGITAL SUPPLY CURRENT (mA)
4.00
DIGITAL SUPPLY CURRENT (mA)
7
MAX5190
6
MAX5187
5
4
2.5
3.75
MAX5190
3.50
MAX5187
3.25
2.0
MAX5190
1.5
MAX5187
1.0
-40
-15
10
35
60
85
TEMPERATURE (°C)
3
2.5
3.0
3.5
4.0
4.5
5.0
5.5
SUPPLY VOLTAGE (V)
3.00
-40
-15
10
35
60
85
TEMPERATURE (°C)
STANDBY CURRENT
vs. SUPPLY VOLTAGE
MAX5187/90-07
STANDBY CURRENT
vs. TEMPERATURE
MAX5187/90-08
SHUTDOWN CURRENT
vs. SUPPLY VOLTAGE
MAX5187/90-09
610
600
0.14
STANDBY CURRENT (µA)
MAX5190
STANDBY CURRENT (µA)
600
SHUTDOWN CURRENT (µA)
590
MAX5190
0.12
580
MAX5187
570
0.10
MAX5187
0.08
590
MAX5187
580
560
0.06
MAX5190
570
2.5
3.0
3.5
4.0
4.5
5.0
5.5
SUPPLY VOLTAGE (V)
550
-40
-15
10
35
60
85
TEMPERATURE (°C)
0.04
2.5
3.0
3.5
4.0
4.5
5.0
5.5
SUPPLY VOLTAGE (V)
4
_______________________________________________________________________________________
8-Bit, 40MHz, Current/Voltage-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.)
SHUTDOWN CURRENT
vs. TEMPERATURE
MAX5187/90-10
MAX5187/MAX5190
INTERNAL REFERENCE VOLTAGE
vs. SUPPLY VOLTAGE
MAX5187/90-11
INTERNAL REFERENCE VOLTAGE
vs. TEMPERATURE
MAX5187/90-12
0.13
1.28
1.28
SHUTDOWN CURRENT (µA)
0.11
0.09
REFERENCE VOLTAGE (V)
REFERENCE VOLTAGE (V)
1.27
1.27
MAX5190
MAX5187
1.26
MAX5190
1.25
MAX5187
1.26
MAX5187
1.25
MAX5190
0.07
0.05
1.24
1.24
0.03
-40
-15
10
35
60
85
TEMPERATURE (°C)
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)
OUTPUT CURRENT
vs. REFERENCE CURRENT
MAX5187/90-13
DYNAMIC RESPONSE RISE TIME
MAX5187/90-14
DYNAMIC RESPONSE FALL TIME
MAX5187/90-15
4
OUTPUT CURRENT (mA)
3
OUTP
150mV/
div
2
OUTP
150mV/
div
1
OUTN
150mV/
div
OUTN
150mV/
div
0
0
100
200
300
400
500
50ns/div
50ns/div
REFERENCE CURRENT (µA)
SETTLING TIME
MAX5187/90-16
FFT PLOT
f
OUT
= 2.2MHz
f
CLK
= 40MHz
MAX5187/90-17
0
-10
-20
-30
OUTN
100mV/
div
-40
-50
-60
-70
OUTP
100mV/
div
-80
-90
-100
-110
-120
0
2
4
(dBc)
12.5ns/div
6 8 10 12 14 16 18 20
OUTPUT FREQUENCY (MHz)
_______________________________________________________________________________________
5
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