max5853 Maxim Integrated Products, Inc., max5853 Datasheet

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max5853

Manufacturer Part Number
max5853
Description
Max5853 Dual, 10-bit, 80msps, Current-output Dac
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
The MAX5853 dual, 10-bit, 80Msps digital-to-analog
converter (DAC) provides superior dynamic performance
in wideband communication systems. The device inte-
grates two 10-bit DAC cores, and a 1.24V reference. The
converter supports single-ended and differential modes
of operation. The MAX5853 dynamic performance is
maintained over the entire 2.7V to 3.6V power-supply
operating range. The analog outputs support a -1.0V to
+1.25V compliance voltage.
The MAX5853 can also operate in interleave data mode
to reduce the I/O pin count. This allows the converter to
be updated on a single, 10-bit bus.
The MAX5853 features digital control of channel gain
matching to within ±0.4dB in sixteen 0.05dB steps.
Channel matching improves sideband suppression in
analog quadrature modulation applications. The on-
chip 1.24V bandgap reference includes a control
amplifier that allows external full-scale adjustments of
both channels through a single resistor. The internal ref-
erence can be disabled and an external reference may
be applied for high-accuracy applications.
The MAX5853 features full-scale current outputs of 2mA
to 20mA and operates from a 2.7V to 3.6V single supply.
The DAC supports three modes of power-control opera-
tion: normal, low-power standby, and complete power-
down. In power-down mode, the operating current is
reduced to 1µA.
The MAX5853 is packaged in a 40-pin thin QFN with
exposed paddle (EP) and is specified for the extended
(-40°C to +85°C) temperature range.
Pin-compatible, higher speed, and lower resolution
versions are also available. Refer to the MAX5854
(10-bit, 165Msps), the MAX5852** (8-bit, 165Msps), and
the MAX5851** (8-bit, 80Msps) data sheets for more
information. See
19-3196; Rev 0; 2/04
**Future product—contact factory for availability.
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.
Communications
Wireless Base Stations
Quadrature Modulation
Direct Digital Synthesis (DDS)
Instrumentation/ATE
SatCom, LMDS, MMDS, HFC, DSL, WLAN,
Point-to-Point Microwave Links
Dual, 10-Bit, 80Msps, Current-Output DAC
Table 4
________________________________________________________________ Maxim Integrated Products
General Description
at the end of the data sheet.
Applications
o 10-Bit, 80Msps Dual DAC
o Low Power
o 2.7V to 3.6V Single Supply
o Full Output Swing and Dynamic Performance at
o Superior Dynamic Performance
o Programmable Channel Gain Matching
o Integrated 1.24V Low-Noise Bandgap Reference
o Single-Resistor Gain Control
o Interleaved Data Mode
o Single-Ended and Differential Clock Input Modes
o Miniature 40-Pin Thin QFN Package, 6mm x 6mm
o EV Kit Available—MAX5854 EV Kit
*EP = Exposed paddle.
MAX5853ETL
2.7V Supply
DA8/DACEN
77mW with I
78dBc SFDR at f
DA6/REN
TOP VIEW
DA7/IDE
DA9/PD
DA5/G3
DA4/G2
DA3/G1
DA2/G0
PART
DA1
DA0
10
1
2
3
4
5
6
7
8
9
40
11 12 13 14 15
FS
39
EP
= 5mA at f
Ordering Information
-40°C to +85°C
TEMP RANGE
38
OUT
THIN QFN
37
MAX5853
= 20MHz
36
Pin Configuration
16 17
35
CLK
34
33
18
= 80MHz
32
19 20
PIN-PACKAGE
40 Thin QFN-EP*
31
Features
30
29
28
27
26
25
24
23
22
21
CV
CGND
CLK
CV
CLKXN
CLKXP
DCE
CW
DB0
DB1
DD
DD
1

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max5853 Summary of contents

Page 1

... In power-down mode, the operating current is reduced to 1µA. The MAX5853 is packaged in a 40-pin thin QFN with exposed paddle (EP) and is specified for the extended (-40°C to +85°C) temperature range. Pin-compatible, higher speed, and lower resolution versions are also available ...

Page 2

Dual, 10-Bit, 80Msps, Current-Output DAC ABSOLUTE MAXIMUM RATINGS AV to AGND .........................................................-0. DGND.........................................................-0. CGND.........................................................-0. .............................................................- AGND to DGND.....................................................-0.3V to +0.3V ...

Page 3

Dual, 10-Bit, 80Msps, Current-Output DAC ELECTRICAL CHARACTERISTICS (continued) ( 3V, AGND = DGND = CGND = 20mA, differential output, output amplitude = 0dBFS, T tion test. T < +25°C guaranteed ...

Page 4

Dual, 10-Bit, 80Msps, Current-Output DAC ELECTRICAL CHARACTERISTICS (continued) ( 3V, AGND = DGND = CGND = 20mA, differential output, output amplitude = 0dBFS, T tion test. T < +25°C guaranteed ...

Page 5

Dual, 10-Bit, 80Msps, Current-Output DAC ELECTRICAL CHARACTERISTICS (continued) ( 3V, AGND = DGND = CGND = 20mA, differential output, output amplitude = 0dBFS, T tion test. T < +25°C guaranteed ...

Page 6

Dual, 10-Bit, 80Msps, Current-Output DAC ELECTRICAL CHARACTERISTICS (continued) ( 3V, AGND = DGND = CGND = 20mA, differential output, output amplitude = 0dBFS, T tion test. T < +25°C guaranteed ...

Page 7

Dual, 10-Bit, 80Msps, Current-Output DAC ( 3V, AGND = DGND = CGND = 0, external reference (unless otherwise noted +25°C.) A SPURIOUS-FREE DYNAMIC RANGE vs. OUTPUT FREQUENCY (f = ...

Page 8

Dual, 10-Bit, 80Msps, Current-Output DAC ( 3V, AGND = DGND = CGND = 0, external reference (unless otherwise noted +25°C.) A 8-TONE SFDR PLOT (f = 80MHz, 15MHz WINDOW) ...

Page 9

... CLK OUT 1.22750 1.22730 1.22710 1.22690 1.22670 1.22650 2.70 2.85 3.00 3.15 3.30 3.45 3.60 SUPPLY VOLTAGES (V) DYNAMIC RESPONSE FALL TIME MAX5853 toc21 10ns/div = 20mA, differential output, differential clock POWER DISSIPATION vs. CLOCK FREQUENCY (f = 10MHz 0dBFS) OUT OUT 200 190 DIFFERENTIAL CLOCK DRIVE 180 170 SINGLE-ENDED CLOCK DRIVE 160 ...

Page 10

Dual, 10-Bit, 80Msps, Current-Output DAC PIN NAME 1 DA9/PD Channel A Input Data Bit 9 (MSB)/Power-Down 2 DA8/DACEN Channel A Input Data Bit 8/DAC Enable Control 3 DA7/IDE Channel A Input Data Bit 7/Interleaved Data Enable Channel A Input Data ...

Page 11

... The full-scale output current range is adjustable from 2mA to 20mA to optimize power dissi- OUTPA pation and gain control. OUTNA The MAX5853 accepts an input data and a DAC con- version rate of 80MHz. The inputs are latched on the G0 rising edge of the clock whereas the output latches on G1 the following rising edge ...

Page 12

... The DAC outputs (previous data) are updated simultaneously on the same edge. If the DCE pin is pulled low, the MAX5853 operates in differential clock mode. In this mode, the clock signal has to be applied to the differential clock input pins CLKXP/CLKXN. The differential input accepts an input range of ≥0.5V ...

Page 13

... R REFO SET FS is the reference resistor that determines the amplifier out- put current of the MAX5853 (Figure 3). This current is mir- rored into the current-source array where I distributed between matched current segments and summed to valid output current readings for the DACs. ______________________________________________________________________________________ ...

Page 14

Dual, 10-Bit, 80Msps, Current-Output DAC CLKXN CLKXP t CDH CLK OUTPUT DCS DCH DA0–DA9 DACA - 1 DACA OUTNA OUTPA t t DCS DCH DB0–DB9 DACB - 1 DACB OUTNB OUTPB Figure 5. Timing Diagram for Noninterleaved ...

Page 15

... Analog quadrature upcon- verters have a DC common-mode input requirement of typically 0.7V to 1.0V. The MAX5853 differential I/Q out- puts can maintain the desired full-scale level at the required 0.7V to 1.0V DC common-mode level when powered from a single 2.85V (±5%) supply. The ...

Page 16

... Thermal Characteristics and Packaging Thermal Resistance 40-lead thin QFN-EP: θ = 38°C/W JA The MAX5853 is packaged in a 40-pin thin QFN-EP package, providing greater design flexibility, increased thermal efficiency, and optimized AC performance of the DAC. The EP enables the implementation of grounding techniques, which are necessary to ensure highest performance operation. ...

Page 17

... The glitch impulse is found by integrating the voltage of the glitch at the midscale transition over time. The glitch impulse is usu- ally specified in pV-s. Table 4. Part Selection Table Offset Error PART MAX5851 MAX5852 MAX5853 Gain Error MAX5854 TRANSISTOR COUNT: 9,035 PROCESS: CMOS / I x 32. REF Settling Time ...

Page 18

Dual, 10-Bit, 80Msps, Current-Output DAC (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, (The package drawing(s) in this data sheet may not reflect the most current specifications. For ...

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