OBJECTIVE PRODUCT SPECIFICATION 10-Bit 125MSPS Sampling Digital-to-Analog Converter nDA10125-18 FEATURES APPLICATIONS • • • • • • • • • • • • • 1.8V power supply SFDR > 60dB for (fin = 5MHz) Low power ([email protected]) Update rate: 125MSPS Differential output (2 – 15mA) Internal voltage reference Edge-triggered input latches GENERAL DESCRIPTION Communications Basestations Digital Radio Link Set top boxes Instrumentation Digital video systems Functional block diagram The nDA10125-18 is a compact, 0.1 µF high-speed, low power 10-bit digitalVpbias AVDD to-analog converter, implemented in PWD a 0.18µm pure digital CMOS Vref process. The power consumption is Vref only 63mW from a 1.8V supply Current Output Ioutp 0.1 µF Bias operating at 125MHz update rate. Source Current Ioutn Source Array Switches The nDA10125-18 offer good AC R load R load and DC performance at update rates 50 Ω 50 Ω Iref up to 125MHz. Rset Thermometer Coding/ The DAC has differential current Latches outputs with a nominal full-scale CLK D[9:0] output current of 15mA. The fullscale output range is adjustable between 2mA and 15mA using the external Rset resistor. It operates from a single 1.8V power supply, and despite this low supply voltage the output compliance voltage range is as large as 0.75V. QUICK REFERENCE DATA Symbol VDD IDD PD DNL INL fclk,max SFDR N Parameter Supply Voltage Supply Current Power Dissipation Differential nonlinearity Integral nonlinearity Maximum update rate Spurious free dynamic range Resolution Conditions Min. Typ. Max. Unit 1.6 1.8 2.0 35 63 ±0.5 ±1 V mA mW LSB LSB MHz dB 10 bit 125 MSPS 125 MSPS, 1.8V 125 MSPS, fOUT=5MHz 125 60 Main office: Nordic VLSI ASA - Vestre Rosten 81, N-7075 Tiller, Norway - Phone +4772898900 - Fax +4772898989 Revision: 1.2 Page 1 of 5 September 5th, 2001 OBJECTIVE PRODUCT SPECIFICATION nDA10125-18 10 Bit 125 MSPS DAC ELECTRICAL SPECIFICATIONS DC SPECIFICATIONS (TA = 25°C, VDD = 1.8V, Update Rate = 125MHz, Full scale range = 15mA) Symbol Parameter (condition) DNL INL IFSR VFSR ROUT COUT εoffset εgain Vref VDD IDD VSS PD T DC Accuracy Differential Nonlinearity Integral Nonlinearity Monotonicity Analog Output Full-scale Output Current (differential) Output compliance range (differential) Output resistance Output capacitance Offset error Gain error Reference Voltage Reference Voltage Reference Voltage Drift Power Supply Positive supply voltage Supply current Negative supply voltage Power dissipation(@1.8V) Ambient operating temperature Min. Typ. Max. Units ±0.5 ±1.0 LSB LSB 15 ±0.75 0.03 10 mA V kΩ pF % FSR % FSR Guaranteed 2 0 TBD TBD -0.03 -10 0.92 1.0 1.08 100 V ppm/°C 1.6 1.8 2.0 40 V mA 72 +85 mW °C GND -40 AC SPECIFICATIONS (TA = 25°C, VDD = 1.8V, Update Rate = 125MHz, Full scale range = 15mA, Rload=50ÿ) Symbol Parameter (condition) fmax tST tPD Eglitch trise tfall onoise onoise SFDR Dynamic Performance Maximum output update rate Output Settling time Output Propagation Delay Glitch impulse energy Output Rise time Output Fall time Output noise(IFSR=15mA) Output noise(IFSR=2mA) AC Linearity Spurious Free Dynamic Range fOUT = 5 MHz fOUT = 20 MHz Min. Typ. 125 35 TBD TBD 2.5 2.5 50 30 60 55 Max. Units MSPS ns ns pV-s ns ns pA/Hz½ pA/Hz½ dB dB Main office: Nordic VLSI ASA - Vestre Rosten 81, N-7075 Tiller, Norway - Phone +4772898900 - Fax +4772898989 Revision: 1.2 Page 2 of 5 September 5th, 2001 OBJECTIVE PRODUCT SPECIFICATION nDA10125-18 10 Bit 125 MSPS DAC ABSOLUTE MAXIMUM RATINGS Supply voltages AVDD ............................- 0.2V to +2.2V DVDD1 ..................- 0.2V to VDD + 0.2V OVDD ...................- 0.2V to VDD + 0.2V Temperatures Operating Temperature ….-40 to +85°C Storage Temperature.. ... - 65 to +125°C Input voltages Digital In..............- 0.2V to VDD + 0.2V CLOCK ...............- 0.2V to VDD + 0.2V Note: Stress above one or more of the limiting values may cause permanent damage to the device. TIMING DIAGRAM D(9:0) Data(n+1) Data(n) t su th CLK td Output(n) DAC out Output(n-2) Output(n-1) Figure 1: Timing Diagram DEFINITIONS Data sheet status Objective product specification Preliminary product specification Product specification This datasheet contains target specifications for product development. This datasheet contains preliminary data; supplementary data may be published from Nordic VLSI ASA later. 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 Main office: Nordic VLSI ASA - Vestre Rosten 81, N-7075 Tiller, Norway - Phone +4772898900 - Fax +4772898989 Revision: 1.2 Page 3 of 5 September 5th, 2001 OBJECTIVE PRODUCT SPECIFICATION nDA10125-18 10 Bit 125 MSPS DAC 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. Main office: Nordic VLSI ASA - Vestre Rosten 81, N-7075 Tiller, Norway - Phone +4772898900 - Fax +4772898989 Revision: 1.2 Page 4 of 5 September 5th, 2001 OBJECTIVE PRODUCT SPECIFICATION nDA10125-18 10 Bit 125 MSPS DAC 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 email us at [email protected]. World Wide Web/Internet: Visit our site at http://www.nvlsi.no. ORDERING INFORMATION Type number nDA10125-18-IC nDA10125-18-EVB Description nDA10125-18 sample in SSOP28 package (limited availability) nDA10125-18 evaluation board including characterisation report and user guide Table 4. Ordering information Price USD 50 USD 300 Available February 15th, 2002 February 15th, 2002 Preliminary Product Specification. Revision Date: September 5th, 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. Main office: Nordic VLSI ASA - Vestre Rosten 81, N-7075 Tiller, Norway - Phone +4772898900 - Fax +4772898989 Revision: 1.2 Page 5 of 5 September 5th, 2001