MAX5878 Datasheet, PDF (1/18 Pages) Maxim Integrated Products – 16-Bit, 250Msps, High-Dynamic-Performance, Dual DAC with LVDS Inputs

19-3591; Rev 0; 2/05
EVAALVUAAILTAIOBNLEKIT
16-Bit, 250Msps, High-Dynamic-Performance,
Dual DAC with LVDS Inputs
General Description
The MAX5878 is an advanced 16-bit, 250Msps, dual
digital-to-analog converter (DAC). This DAC meets the
demanding performance requirements of signal synthesis
applications found in wireless base stations and other
communications applications. Operating from +3.3V and
+1.8V supplies, this dual DAC offers exceptional dynamic
performance such as 76dBc spurious-free dynamic range
(SFDR) at f_OUT = 16MHz and supports update rates of
250Msps, with a power dissipation of only 296mW.
The MAX5878 utilizes a current-steering architecture
that supports a 2mA to 20mA full-scale output current
range, and allows a 0.1V_P-P to 1V_P-P differential output
voltage swing. The device features an integrated +1.2V
bandgap reference and control amplifier to ensure
high-accuracy and low-noise performance. A separate
reference input (REFIO) allows for the use of an exter-
nal reference source for optimum flexibility and
improved gain accuracy.
The clock inputs of the MAX5878 accept both LVDS
and LVPECL-compatible voltage levels. The device fea-
tures an interleaved data input that allows a single
LVDS bus to support both DACs. The MAX5878 is avail-
able in a 68-pin QFN package with an exposed paddle
(EP) and is specified for the extended temperature
range (-40°C to +85°C).
Refer to the MAX5876* and MAX5877* data sheets for
pin-compatible 12-bit and 14-bit versions of the
MAX5878, respectively. Refer to the MAX5875 data
sheet for a CMOS-compatible version of the MAX5878.
Applications
Base Stations: Single/Multicarrier UMTS, CDMA, GSM
Communications: Fixed Broadband Wireless Access,
Point-to-Point Microwave
Direct Digital Synthesis (DDS)
Cable Modem Termination Systems (CMTS)
Automated Test Equipment (ATE)
Instrumentation
*Future product—contact factory for availability.
Selector Guide
PART
MAX5873
MAX5874
MAX5875
MAX5876*
MAX5877*
MAX5878
RESOLUTION
(BITS)
12
14
16
12
14
16
UPDATE
RATE
200Msps
200Msps
200Msps
250Msps
250Msps
250Msps
LOGIC
INPUTS
CMOS
CMOS
CMOS
LVDS
LVDS
LVDS
Features
♦ 250Msps Output Update Rate
♦ Noise Spectral Density = -164dBFS/Hz
at f_OUT = 16MHz
♦ Excellent SFDR and IMD
SFDR = 76dBc at f_OUT = 16MHz (to Nyquist)
SFDR = 71dBc at f_OUT = 80MHz (to Nyquist)
IMD = -90dBc at f_OUT = 10MHz
IMD = -72dBc at f_OUT = 80MHz
♦ ACLR = 75dB at f_OUT = 61MHz
♦ 2mA to 20mA Full-Scale Output Current
♦ LVDS-Compatible Digital and Clock Inputs
♦ On-Chip +1.20V Bandgap Reference
♦ Low 296mW Power Dissipation
♦ Compact 68 QFN-EP Package (10mm x 10mm)
♦ Evaluation Kit Available (MAX5878EVKIT)
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
PKG CODE
MAX5878EGK -40°C to +85°C 68 QFN-EP** G6800-4
**EP = Exposed pad.
Pin Configuration
TOP VIEW
68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52
B4N 1
B3P 2
B3N 3
B2P 4
B2N 5
B1P 6
B1N 7
B0P 8
B0N 9
GND 10
DVDD3.3 11
GND 12
GND 13
AVDD3.3 14
GND 15
REFIO 16
FSADJ 17
MAX5878
51 B12P
50 B13N
49 B13P
48 B14N
47 B14P
46 B15N
45 B15P
44 SELIQN
43 SELIQP
42 XORP
41 XORN
40 PD
39 TORB
38 CLKP
37 CLKN
36 GND
35 AVCLK
18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34
QFN
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