Document
19-2776; Rev 2; 12/03
3.3V, 12-Bit, 500Msps High Dynamic Performance DAC with Differential LVDS Inputs
General Description
The MAX5886 is an advanced, 12-bit, 500Msps digitalto-analog converter (DAC) designed to meet the demanding performance requirements of signal synthesis applications found in wireless base stations and other communications applications. Operating from a single 3.3V supply, this DAC offers exceptional dynamic performance such as 76dBc spurious-free dynamic range (SFDR) at fOUT = 30MHz. The DAC supports update rates of 500Msps and a power dissipation of only 230mW. The MAX5886 utilizes a current-steering architecture, which supports a full-scale output current range of 2mA to 20mA, and allows a differential output voltage swing between 0.1VP-P and 1VP-P. The MAX5886 features an integrated 1.2V bandgap reference and control amplifier to ensure high accuracy and low noise performance. Additionally, a separate reference input pin enables the user to apply an external reference source for optimum flexibility and to improve gain accuracy. The digital and clock inputs of the MAX5886 are designed for differential low-voltage differential signal (LVDS)-compatible voltage levels. The MAX5886 is available in a 68-pin QFN package with an exposed paddle (EP) and is specified for the extended industrial temperature range (-40°C to +85°C). Refer to the MAX5887 and MAX5888 data sheets for pin-compatible 14- and 16-bit versions of the MAX5886. o 500Msps Output Update Rate o Single 3.3V Supply Operation o Excellent SFDR and IMD Performance SFDR = 76dBc at fOUT = 30MHz (to Nyquist) IMD = -85dBc at fOUT = 10MHz ACLR = 70dB at fOUT = 61MHz o 2mA to 20mA Full-Scale Output Current o Differential, LVDS-Compatible Digital and Clock Inputs o On-Chip 1.2V Bandgap Reference o Low 130mW Power Dissipation o 68-Pin QFN-EP Package
Features
MAX5886
Ordering Information
PART MAX5886EGK TEMP RANGE -40°C to +85°C PIN-PACKAGE 68 QFN-EP*
*EP = Exposed paddle.
Pin Configuration
DGND DGND DVDD B0N B1N B2N B3N B4N B5N B0P B1P B3P B4P B2P B5P B6P
51 B7N 50 B7P 49 B8N 48 B8P 47 B9N 46 B9P 45 B10N 44 B10P 43 B11N 42 B11P 41 DGND 40 DVDD 39 SEL0 38 N.C. 37 N.C. 36 N.C. 35 N.C.
TOP VIEW
68
67 66 65 64
63 62 61 60 59 58
57 56 55 54 53 52
Applications
N.C.
1 2 3 4 5 6 7 8 9
EP
Base Stations: Single/Multicarrier UMTS, CDMA, GSM Communications: LMDS, MMDS, Point-to-Point Microwave Digital Signal Synthesis Automated Test Equipment (ATE) Instrumentation
N.C. N.C. N.C. N.C. N.C. N.C. N.C. DGND
MAX5886
DVDD 10 VCLK 11 CLKGND 12 CLKP 13 CLKN 14 CLKGND 15 VCLK 16 PD 17
18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34
AGND
REFIO
DACREF
IOUTN
FSADJ
IOUTP
N.C.
AGND
AGND
AGND
AGND
B6N
AVDD
AVDD
AVDD
AVDD
QFN
________________________________________________________________ Maxim Integrated Products
AVDD
N.C.
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.
3.3V, 12-Bit, 500Msps High Dynamic Performance DAC with Differential LVDS Inputs MAX5886
ABSOLUTE MAXIMUM RATINGS
AVDD, DVDD, VCLK to AGND................................-0.3V to +3.9V AVDD, DVDD, VCLK to DGND ...............................-0.3V to +3.9V AVDD, DVDD, VCLK to CLKGND ...........................-0.3V to +3.9V AGND, CLKGND to DGND....................................-0.3V to +0.3V DACREF, REFIO, FSADJ to AGND.............-0.3V to AVDD + 0.3V IOUTP, IOUTN to AGND................................-1V to AVDD + 0.3V CLKP, CLKN to CLKGND...........................-0.3V to VCLK + 0.3V B0P/B0N–B11P/B11N, SEL0, PD to DGND ...........................................-0.3V to DVDD + 0.3V Continuous Power Dissipation (TA = +70°C) 68-Pin QFN-EP (derate 41.7mW/°C above +70°C) ......3333mW Thermal Resistance (θJA) ..............................................+24°C/W Operating Temperature Range ..........................-40°C to +85°C Junction Temperature .....................................................+150°C Storage Temperature Range ............................-60°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
(AVDD = DVDD = VCLK = 3.3V, AGND = DGND = CLKGND = 0, external reference, VREFIO = 1.25V, differential transformer-coupled analog output, 50Ω double terminated (Figure 7), IOUT = 20mA, TA = TMIN to TMAX, unless otherwise noted. ≥+25°C guaranteed by production test, <+25°C guaranteed by design and characterization. Typical values are at TA = +25°C.)
PARAMETER STATIC PERFORMANCE Resolution In.