scope:

This drawing describes device requirements for class B microcircuits in accordance with 1.2.1 of MIL-STD-883, "Provisions for the use of MIL-STD-883 in conjunction with compliant non-JAN devices".

The complete part number shall be as shown in the following example:

The device types shall identify the circuit function as follows:

Device type Generic number Circuit function Relative accuracy 01 7549S Dual, CMOS, 12-bit DAC ±1.0 LSB 02 7549T Dual, CMOS, 12-bit DAC ±0.5 LSB

The case outline shall be as designated in appendix C of MIL-M-38510, and as follows:

Outline letter Case outline R D-8 (20-lead, 1.060" × .310" × .200"), dual-in-line package

V_DD to DGND- - - - - - - - - - - - - - - - - - - - −03 V dc to +17 V dc V_REFA, V_REFB to AGND - - - - - - - - - - - - - - - ±25 V dc V_RFBA, V_RFBB to AGND - - - - - - - - - - - - - - - ±25 v dc Digital input voltage to DGND- - - - - - - - - - - −0.3 V dc to V_DD V_PIN15, V_PIN17 to DGND - - - - - - - - - - - - - - −0.3 V dc to V_DD AGND to DGND - - - - - - - - - - - - - - - - - - - −0.3 V dc to V_DD Storage temperature range- - - - - - - - - - - - - −65°C to +150°C Lead temperature (soldering, 10 seconds) - - - - - +300°C Power dissipation (P_D) - - - - - - - - - - - - - - +450 mW 1/ Thermal resistance, junction-to-case (θ_JC) - - - - See MIL-M-38510, appendix C Thermal resistance, junction-to-ambient (θ_JA)- - - +120°C/W Junction temperature (T_J)- - - - - - - - - - - - - +175°C

Supply voltage (V_DD) - - - - - - - - - - - - - - - +14.25 V dc to +15.75 V dc A-reference voltage (V_REFA) - - - - - - - - - - - +10 V dc B-reference voltage (V_RFFB) - - - - - - - - - - - +10 V dc Ambient operating temperature range (T_A) - - - - - −55°C to +125°C

intended Use: