D AC9331-14 D ata Converter Line 14-Bit Multiplying D AC FEATURES • 14-bit resolution and accuracy • 2 and 4-quadrant multiplication • Precision laser trimmed ladder • Low power • Single power supply operation • Reliable DESCRIPTION The DA C9331-14 is a low cost 14-bit multiplying digital-to-analog converter packaged in a unique 24-pin double DIP. Capable of 2 and 4-quadrant multiplication, the unit is TTL/DTL and CM OS compatible with power consumption less than 30mW . Power supply options include +5V (-1) or + 15V (-2). Outstanding features of the DA C9331-14 include: True 14-bit performance —Up to 14-bit resolution and accuracy over the 0˚ to 70˚C operating range. Reliability plus — Packaged in a unique enclosure t h at has undergone extensive environmental testing during its development. The DA C9331-14 is continuously monitored during all assembly and test operations by our quality control organization. Reliability is enhanced by batch-processed, precision laser-trimmed resistor networks fabricated in our own facility. Similar to monoli thic circuits, the networks are processed and functionally trimmed to assure consistent performance. 2 and 4-q uadrant m ultiplication —Reference input range to ±25 volts. Low pow er — CM OS technology provides less than 30mW total power dissipation — a real battery saver. FUNCTIONAL DIAGRAM +V DD 23 25k V REF 25k 25k 24 50k 50k 50k 50k 50k 12 S1 S2 S3 2 5 6 7 13 25k 3 1 Bit 1 (M SB) Bit 2 Bit 3 GND S14 Bit 14 (LSB) 165Cedar Hill Street,Marlborough,MA01752 Tel:508.485.6350 Fax: 508.485.5168 www.SpectrumMicrowave.com I OUT 2 I OUT 1 R FEEDBA CK SW ITCHES A RE SHOW N IN THE HIGH STA TE DAC9331-14 SPECIFICATIO N S (Typical @ +25ºC and nominal power supply. VREF = +10V,unless otherwise noted) M ODEL DA C9331-14 TY PE M ultiplying DIGITA L INPUT Resolution 2-Quad. Unipolar Coding 4-Quad. Bipolar Coding Logic Compatibility Logic Thresholds Input Leakage Current TEM PERA TURE RA NGE Operating Storage 0ºC to +70ºC 0ºC to +85ºC M ECHA NICA L 14-Bits Binary Offset Binary DTL, TTL, CM OS V IH =3.5V (min),V IL=1.0V (max) 1 ±1µA (max) Case Style Case Dimensions 24-pin double-DIP 0.65 (16.51) MAX 0.17 (4.318) M A X DIM ENSIONS inches (mm) REFERENCE INPUT V oltage Range Input Impedance ±25V (max) 25k A NA LOG OUTPUT Gain A ccuracy2 Offset 3 Output Leakage Small Signal 3dB Bandwidth Output Capacitance C out 1 C out 2 C out 1 C out 2 28 0.1% 50µV (max) 40nA (max) 600kHz (min) 15 100pF (max) all inputs high 30pF (max) all inputs high 30pF (max) all inputs low 100pF (max) all inputs low ±1/2 LSB (max) ±1/2 LSB (typ), ±1 LSB (max) DY NA M IC PERFORM A NCE M ajor Carry Transition Settling to ±0.05% 3.0µS (max) Reference Feedthrough Error (V ref=20V pp @ 10kHz) 10mV pp STA BILITY 3 (Over Specified Temp. Range) Scale Factor 5 Linearity Differential Linearity ±3ppm/ºC F.S.R. (max) ±3ppm/ºC F.S.R. (max) ±2ppm/ºC F.S.R. (max) POW ER SUPPLY (V DD ) 6 V oltage Range @ Current -1 Option -2 Option Rejection Ratio Total Dissipation (inputs at GND) +5V (nom); +4.75V to +7V @ <1mA +15V (nom); +11.5V to +15.5V @ 2mA 0.005% /% (typ), 0.007% /% (max) 14 BOTTOM V IEW PIN 1 2 3 4 5 6 7 8 9 10 11 12 0.17 TY P (4.32) 1 0.120 (3.048) STA TIC PERFORM A NCE Integral Linearity4 Differential Linearity PIN 1 DOT 0.600 (15.240) 1.340 (34.036) MAX 0.100 (2.540) TY P 0.010 x 0.020 (0.254) (0.508) FUNCTION R FEEDBA CK IOUT 2 IOUT 1 N.C. BIT 1 (M SB) BIT 2 BIT 3 BIT 4 N.C. N.C. N.C. GROUND PIN 24 23 22 21 20 19 18 17 16 15 14 13 FUNCTION V REF +V DD BIT 5 BIT 6 BIT 7 BIT8 BIT 9 BIT 10 BIT11 BIT 13 BIT 13 BIT 14 (LS8) Note: N.C. means no connection NOTES 1. The switching threshold is typically V DD /2 for –1 models and V DD /6 for –2 models. The logic input must never exceed V DD /3 (or –2 models. 2. Using internal feedback resistor. 3. Using the internal Ffeedback with nulled external amplifier in a constant 25ºC ambient. (Offset doubles every 10ºC). 4. Best straight line method of test. 5. The DA C9331-14 Series is designed to be used only in those applications where the current output is virtual ground: i.e., the summing junction of an op amp in the inverting mode. The internal feedback resistor (R feedback) must be used to achieve temperature tracking. See A PPLICA TIONS INFORM A TION for recommended circuit configurations. 6. The power supply voltage must not exceed +10V for the –1 versions or +15.5V for the –2 versions. 30mW (max) ORDERING INFORM A TION Consult factory for application information. M ODEL NUM BER DESCRIPTION OA C9331-14-1 DA C9331-14-2 14-Bit M DA C, +5V Operation 14-Bit M DA C, +15V Operation Specifications subject to change without notice.