D AC347 D ata Converter Line Low Power, W ide Temperature Range D ACs FEATURES • 10- and 12-bit models • V ery low power: less than 300 mW • W ide operating temperature range: -55ºC to +125º C • M IL-STD-883 Rev. C, Level B or commercial processing • 18 pin hermetic package DESCRIPTION This Series is specifically designed and tested for low power operation. The models feature low total power dissipation of less than 300 mW . Each unit incorporates a pretrimmed output amplifier and a low power internal reference. The DA C347 Series are high performance, general purpose, digital to analog converters utilizing matched CM OS current switches and ultra stable thinfilm nichrome resistor networks. A ll DA C347 Series models provide optimum stability in performance over the full –55ºC to + 125ºC temperature range. Unipolar models use complementary binary coding and bipolar models use complementary offset binary coding. Each DA C347 Series converter comes packaged in a hermetically sealed 18-pin package, ideal for applications where maximum performance in minimum space is required. FUNCTIONAL DIAGRAM +15V – 15V 9 GND 10 11 GA IN A DJ 7 V OLTA GE REFERENCE R = 25k R 2R R R 2R 2R 2R FOR BIPOLA R M ODELS 2R R “ 1” “ 1” “ 0” “ 0” – + S1 1 BIT 1 (M SB) S2 2 BIT 2 S3 S 12 3 18 BIT 3 BIT 12 (LSB) 8 OFFSET A DJ 165Cedar Hill Street,Marlborough,MA01752 Tel:508.485.6350 Fax: 508.485.5168 www.SpectrumMicrowave.com 12 OUTPUT DAC347 SPECIFICATIO N S (Typical @ +25ºC using nominal supplies unless otherwise noted). SERIES DA C347 TY PE Fixed Ref, V olt Output DIGITA L INPUT Resolution –10 option –12 option Coding Unipolar Bipolar Logic Compatibility1 ENV IRONM ENTA L Operating Temperature Range 10-bits 12-bits Comp. Binary Comp Offset Binary DTL, TTL, CM OS M ECHA NICA L Case Style V IH =2.4V (min) V IL=0.8V (max) I IH =I IL=1µA (max) A NA LOG OUTPUT2 V oltage Output -U option -B option -G option Impedance Current 0 to +10V ±5V ±10V 0.1 ±5mA REFERENCE Internal STA TIC PERFORM A NCE Integral Linearity Differential Linearity End Point A ccuracy DY NA M IC PERFORM A NCE Settling Time for a W orst Case Digital Change –10 models (to ±0.05% ) –12 models (to ±0.05% ) – 25º C TO +85º C OPERA TION Change in A ccuracy3 –10 models –12 models Differential Linearity –10 models –12 models Linearity Error –10 models –12 models – 55º C TO +125º C OPERA TION Change in A ccuracy –10 models –12 models Differential Linearity –10 models –12 models Linearity Error –10 models –12 models POW ER REQUIREM ENTS Power Supply Power Supply Rejection Ratio –55º C to +125ºC B V ersions 0ºC to 70º C C V ersions 18 pin ceramic CA SE A (CERA M IC): A DC542 TY PICA L DIM ENSIONS inch mm 0.165 (4.191) 0.010 (0.254) 0.300 (7.62) 1 0.018 (0.451) PIN (1) INDEX 18 0.100 0.982 (2.54) (25.197) TOP V IEW 9 10 0.480 (12.446) ±1/2 LSB (max) ±1/2 LSB ±1LSB (max) ±0.1% 20µS (max) 20µS (max) ±0.15% F.S.R. ±0.1% F.S.R. ±0.1% F.S.R. ±0.025% F.S.R. 0.200 (5.207) M IN 0.025 (0.635) PIN FUNCTION PIN FUNCTION 1 BIT 1 (M SB) 18 BIT 1 (LSB) 2 Bit 2 17 Bit 11 3 Bit 3 16 Bit 10 4 Bit 4 15 Bit 9 5 Bit 5 14 Bit 8 6 Bit 6 13 Bit 7 7 GA IN A DJ 12 OUTPUT 8 OFFSET A DJ 11 GND 9 +15V 10 –15V ±0.05% F.S.R. ±0.0125% F.S.R. ORDERING INFORM A TION ±0.7% F.S.R ±0.35% F.S.R. ±0.1% F.S.R ±0.05% F.S.R ±0.05% F.S.R ±0.025% F.S.R +15V , ±3% @ 6mA (typ), 9mA (max) –15V , ±3% @ 9mA (typ), 12mA (max) 0.001% /% (typ), 0.002% /% (max) M ODEL DESCRIPTION DA C347LPB-12-U DA C347LPC-10-G DA C347LPC-12-G DA C347LPC-10-B DA C347LPC-12-B DA C347LPC-10-U DA C347LPC-12-U M IL,12-Bit. 0 to+10V Comm 10-Bit,±10V Comm, 12-Bit, ±10V Comm, 10-Bit.±5V Comm, 12-Bit.±5V Comm, 10-Bit. 0 to +10V Comm, 10-Bit. 0 to +10V LPC models are commercially processed. LPB models are processed to M IL-STD-883 Rev. C. Level B Specifications subject to change without notice.