General Description
The MAX5188 is a dual 8-bit, alternate-phase-update,
current-output digital-to-analog converter (DAC)
designed for superior performance in systems requiring
analog signal reconstruction with low distortion and
low-power operation. The MAX5191 provides equal
specifications, with on-chip output resistors for voltage-
output operation. Both devices are designed for 10pVs
glitch operation to reduce distortion and minimize
unwanted spurious signal components at the output. An
on-board +1.2V bandgap circuit provides a well-regu-
lated, low-noise reference that may be disabled for
external reference operation.
The MAX5188/MAX5191 are designed to provide a high
level of signal integrity for the least amount of power
dissipation. Both DACs operate from a +2.7V to +3.3V
single supply. Additionally, these DACs have three
modes of operation: normal, low-power standby, and
full shutdown. A full shutdown provides the lowest pos-
sible power dissipation with a maximum shutdown cur-
rent of 1µA. A fast wake-up time (0.5µs) from standby
mode to full DAC operation allows for power conserva-
tion by activating the DACs only when required.
The MAX5188/MAX5191 are available in a 28-pin QSOP
package and are specified for the extended (-40°C to
+85°C) temperature range. For pin-compatible 10-bit
versions, refer to the MAX5182/MAX5185 data sheet.
Applications
Signal Reconstruction Applications
Digital Signal Processing
Arbitrary Waveform Generators
Imaging Applications
Features
+2.7V to +3.3V Single-Supply Operation
Wide Spurious-Free Dynamic Range: 70dB
at f
OUT
= 2.2MHz
Fully Differential Outputs for Each DAC
±0.5% FSR Gain Mismatch Between DAC Outputs
Low-Current Standby or Full Shutdown Modes
Internal +1.2V Low-Noise Bandgap Reference
Small 28-Pin QSOP Package
MAX5188/MAX5191
Dual, 8-Bit, 40MHz, Current/Voltage,
Alternate-Phase Output DACs
________________________________________________________________ Maxim Integrated Products 1
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CREF2
OUT2P
OUT2N
REFO
REFR
DGND
D1
DV
DD
D7
D6
D5
D4
D3
D2
D0
DGND
DGND
N.C.
CLK
PD
DACEN
AV
DD
AGND
OUT1N
OUT1P
CREF1
QSOP
TOP VIEW
MAX5188
MAX5191
REN
CS
19-1580; Rev 2; 12/01
Pin Configuration
Ordering Information
PART
MAX5188BEEI
MAX5191BEEI
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
28 QSOP
28 QSOP
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.
MAX5188/MAX5191
Dual, 8-Bit, 40MHz, Current/Voltage,
Alternate-Phase Output DACs
2 ________________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(AV
DD
= DV
DD
= +3V ±10%, AGND = DGND = 0, f
CLK
= 40MHz, I
FS
= 1mA, 400 differential output, C
L
= 5pF, T
A
= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at T
A
= +25°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.
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
AV
DD
to DV
DD
.....................................................................±3.3V
AGND to DGND.....................................................-0.3V to +0.3V
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 Ranges
MAX5188/MAX5191BEEI..................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
DAC External Output Resistor
Load
400MAX5188 only
mAFull-Scale Output Current I
FS
0.5 1 1.5MAX5188 only
µAOutput Leakage Current -1 1DACEN = 0, MAX5188 only
UNITS
Bits
LSB
LSB
LSB
LSB
ns
pVs
dBc
dB
dB
dB
nVs
pA/Hz
LSB
mV
V
PARAMETER SYMBOL MIN TYP MAX
Full-Scale Error -20 ±4 +20
-1 +1
Differential Nonlinearity DNL -1 ±0.25 +1
Output Settling Time 25
Glitch Impulse 10
72
Spurious-Free Dynamic Range
to Nyquist
SFDR
57 70
Resolution N 8
Integral Nonlinearity INL
-1 ±0.25 +1
-70
Total Harmonic Distortion
to Nyquist
THD
-68 -63
52
Signal-to-Noise Ratio
to Nyquist
SNR
46 52
DAC-to-DAC Output Isolation -60
Clock and Data Feedthrough 50
Output Noise 10
Gain Mismatch Between DAC
Outputs
±0.5 ±1
Full-Scale Output Voltage V
FS
400
Voltage Compliance of Output -0.3 0.8
CONDITIONS
f
CLK
= 40MHz
(Note 1)
MAX5188
Guaranteed monotonic
To ±0.5LSB error band
f
CLK
= 40MHz
f
OUT
= 2.2MHz
All 0s to all 1s
f
OUT
= 2.2MHz, T
A
= +25°C
f
CLK
= 40MHz
f
OUT
= 2.2MHz, T
A
= +25°C
LSB
Zero-Scale Error
-4 +4MAX5191
f
OUT
= 500kHz
f
OUT
= 2.2MHz, T
A
= +25°C
STATIC PERFORMANCE
ANALOG OUTPUT
DYNAMIC PERFORMANCE
f
OUT
= 500kHz
f
OUT
= 2.2MHz, T
A
= +25°C
f
OUT
= 500kHz
MAX5188/MAX5191
Dual, 8-Bit, 40MHz, Current/Voltage,
Alternate-Phase Output DACs
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(AV
DD
= DV
DD
= +3V ±10%, AGND = DGND = 0, f
CLK
= 40MHz, I
FS
= 1mA, 400 differential output, C
L
= 5pF, T
A
= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at T
A
= +25°C.)
CS Fall to CLK Fall Time
5 ns
DACEN Rise Time to V
OUT
0.5 µs
PD Fall Time to V
OUT
50 µs
Clock Period t
CLK
25 ns
Clock High Time t
CH
10 ns
Clock Low Time t
CL
10 ns
PARAMETER SYMBOL MIN TYP MAX UNITS
Current Gain (I
FS
/ I
REF
) 8 mA/mA
Reference Supply Rejection 0.5 mV/V
Reference Output Drive
Capability
I
REFOUT
10 µA
Analog Power-Supply Voltage AV
DD
2.7 3.3 V
Analog Supply Current I
AVDD
2.7 5 mA
Digital Power-Supply Voltage DV
DD
2.7 3.3 V
Digital Supply Current I
DVDD
4.2 5 mA
Output Voltage Range V
REF
1.12 1.2 1.28 V
Output Voltage Temperature
Drift
TCV
REF
50 ppm/°C
Standby Current I
STANDBY
1 1.5 mA
Shutdown Current I
SHDN
0.5 1 µA
Digital Input High Voltage V
IH
2 V
Digital Input Low Voltage V
IL
0.8 V
Digital Input Current I
IN
±1 µA
Digital Input Capacitance C
IN
10 pF
DAC1 DATA to CLK Rise Setup
Time
t
DS1
10 ns
DAC2 DATA to CLK Fall Setup
Time
t
DS2
10 ns
DAC1 CLK Rise to DATA Hold
Time
t
DH1
0 ns
DAC2 CLK Fall to DATA Hold
Time
t
DH2
0 ns
CS Fall to CLK Rise Time
5 ns
CONDITIONS
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
PD = 0, DACEN = 1, digital inputs at 0 or DV
DD
V
IN
= 0 or DV
DD
REFERENCE
POWER REQUIREMENTS
LOGIC INPUTS AND OUTPUTS
TIMING CHARACTERISTICS
Note 1: Excludes reference and reference resistor (MAX5191) tolerance.

MAX5188BEEI+T

Mfr. #:
Manufacturer:
Maxim Integrated
Description:
Digital to Analog Converters - DAC 8-Bit 2Ch High Speed DAC
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet