objective product specification main office: nordic vlsi asa - vestre rosten 81, n-7075 tiller, norway - phone +4772898900 - fax +4772898989 revision: 1.0 page 1 of 5 august 28th, 2001 10-bit 125msps sampling digital-to-analog converter features ? 1.2v power supply ? sfdr > 60db for ( f in = 5mhz) ? low power (55mw@1.2v) ? update rate: 125msps ? differential output (2 ? 15ma) ? internal voltage reference ? edge-triggered input latches ? power down mode applications ? wireless lan ? basestations ? digital radio link ? set top boxes ? instrumentation ? digital video systems general description the NDA10125-13 is a compact, high-speed, low power 10-bit digital- to-analog converter, implemented in a 0.13 ? m pure digital cmos process. the power consumption is only 55mw from a 1.2v supply operating at 125mhz update rate. the NDA10125-13 offer good ac and dc performance at update rates up to 125mhz. the dac has differential current outputs with a nominal full-scale output current of 15ma. the full- scale output range is adjustable between 2ma and 15ma using the external r set resistor. it operates from a single 1.2v power supply, and despite this low supply voltage the output compliance voltage range is as large as 0.5v. quick reference data symbol parameter conditions min. typ. max. unit v dd supply voltage 1.0 1.2 1.4 v i dd supply current 125 msps 46 ma p d power dissipation 125 msps, 1.2v 55 mw dnl differential nonlinearity 0.5 lsb inl integral nonlinearity ? 1 lsb f clk,max maximum update rate 125 mhz sfdr spurious free dynamic range 125 msps, f out =5mhz 60 db n resolution 10 bit NDA10125-13 functional block diagram current source array vref 0.1 ? f avdd ioutp ioutn 0.1 ? f clk d[9:0] vref iref vpbias pwd r set r load 50 ? r load 50 ? bias source output current switches thermometer coding/ latches
objective product specification NDA10125-13 10 bit 125 msps dac main office: nordic vlsi asa - vestre rosten 81, n-7075 tiller, norway - phone +4772898900 - fax +4772898989 revision: 1.0 page 2 of 5 august 28th, 2001 electrical specifications dc specifications ( t a = 25 ? c, v dd = 1.2v, update rate = 125mhz, full scale range = 15ma ) symbol parameter (condition) min. typ. max. units dc accuracy dnl differential nonlinearity ? 0.5 lsb inl integral nonlinearity ? 1.0 lsb monotonicity guaranteed analog output i fsr full-scale output current (differential) 2 15 ma v fsr output compliance range (differential) 0 0.50 v r out output resistance tbd k ? c out output capacitance tbd pf ? offset offset error -0.03 0.03 % fsr ? gain gain error -10 10 % fsr reference voltage v ref reference voltage tbd v reference voltage drift 100 ppm/ ? c power supply v dd positive supply voltage 1.0 1.2 1.4 v i dd supply current 46 ma v ss negative supply voltage gnd p d power dissipation(@1.2v) 55 mw t ambient operating temperature -40 +85 ? c ac specifications ( t a = 25 ? c, v dd = 1.2v, update rate = 125mhz, full scale range = 15ma ) symbol parameter (condition) min. typ. max. units dynamic performance f max maximum output update rate 125 msps t st output settling time 35 ns t pd output propagation delay tbd ns e glitch glitch impulse energy tbd pv-s t rise output rise time 2.5 ns t fall output fall time 2.5 ns onoise output noise(i fsr =20ma) 50 pa/hz ? onoise output noise(i fsr =2ma) 30 pa/hz ? ac linearity sfdr spurious free dynamic range f out = 5 mhz 60 db f out = 20 mhz 55 db
objective product specification NDA10125-13 10 bit 125 msps dac main office: nordic vlsi asa - vestre rosten 81, n-7075 tiller, norway - phone +4772898900 - fax +4772898989 revision: 1.0 page 3 of 5 august 28th, 2001 absolute maximum ratings supply voltages av dd ........................... - 0.2v to +2.2v dv dd1 ................. - 0.2v to v dd + 0.2v ov dd ................... - 0.2v to v dd + 0.2v input voltages digital in ............. - 0.2v to v dd + 0.2v clock ............... - 0.2v to v dd + 0.2v temperatures operating temperature ?.-40 to +85 ? c storage temperature.. ... - 65 to +125 ? c note: stress above one or more of the limiting values may cause permanent damage to the device. timing diagram d(9:0) clk t su t h t d data(n) output(n) dac out output(n-1) output(n-2) data(n+1) figure 1 : timing diagram definitions data sheet status objective product specification this datasheet contains target specifications for product development. preliminary product specification this datasheet contains preliminary data; supplementary data may be published from nordic vlsi asa later. product specification this datasheet contains final product specifications. limiting values stress above one or more of the limiting values may cause permanent damage to the device. these are stress ratings only and operation of the device at these or at any other conditions above those given in the specifications sections of the specification is not implied. exposure to limiting values for extended periods may affect device reliability. application information where application information is given, it is advisory and does not form part of the specification. table 3. definitions
objective product specification NDA10125-13 10 bit 125 msps dac main office: nordic vlsi asa - vestre rosten 81, n-7075 tiller, norway - phone +4772898900 - fax +4772898989 revision: 1.0 page 4 of 5 august 28th, 2001 life support applications these products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. nordic vlsi asa customers using or selling these products for use in such applications do so at their own risk and agree fully indemnify nordic vlsi asa for any damages resulting from such improper use or sale.
objective product specification NDA10125-13 10 bit 125 msps dac main office: nordic vlsi asa - vestre rosten 81, n-7075 tiller, norway - phone +4772898900 - fax +4772898989 revision: 1.0 page 5 of 5 august 28th, 2001 design center nordic vlsi asa vestre rosten 81 n-7075 tiller norway telephone: +47 72898900 telefax: +47 72898989 e-mail: for further information regarding our state of the art data converters, please e- mail us at datacon@nvlsi.no . world wide web/internet: visit our site at http://www.nvlsi.no. ordering information type number description price available NDA10125-13-ic NDA10125-13 sample in ssop28 package (limited availability) usd 50 august 15 th , 2002 NDA10125-13-evb NDA10125-13 evaluation board including characterisation report and user guide usd 300 august 15 th , 2002 table 4. ordering information objective product specification. revision date: august 28 th , 2001 all rights reserved ?. reproduction in whole or in part is prohibited without the prior written permission of the copyright holder. company and product names referred to in this datasheet belong to their respective copyright/trademark holders.
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