ANALOG DEVICES CMOS 12-Bit Monolithic Multiplying DAC REV. B 1.1 Scope. AD7541A This specification covers the detail requirements for a 12-bit monolithic CMOS multiplying digital-to-analog converter. The AD7541A is a direct replacement for the industry standard AD7541, offering improved performance in the areas of latch-up, lower gain error and gain temperature coefficient. 1.2 Part Number. The complete part number per Table 1 of this specification is as follows: Device Part Number! -l AD7541AS(X)/883B -2 AD7541AT(X)/883B NOTE 'See paragraph 1.2.3 for package identifier. 1.2.3 Case Outline. See Appendix 1 of General Specification ADI-M-1000: package outline: (X) Package Description Q Q-18 18-Pin Cerdip E E-20A =. 20-Contact LCC 1.3 Absolute Maximum Ratings. (T, = 25C unless otherwise noted. Pin numbers refer to DIP package.) Vpp (Pin 16) to GND Vrer (Pin 17) to GND Vers (Pin 18) to GND Digital Input Voltage (Pin 4-Pin 15) to GND Vernis Vern2 to GND Power Dissipation Upto +75... .. ee eee Derates above + 75C Operating Temperature Range Storage Temperature Range 1.5 Thermal Characteristics. Thermal Resistance 0;c = 35C/W for Q-18 and E-20A Oy, = 120C/W for Q-18 and E-20A Le ee ee ee 0.3V, Vop Ce ee ee ee ee ees 6mW/C Se ee ee eee 55C to + 125C Se ee 65C to + 150C DIGITAL-TO-ANALOG CONVERTERS 8-141 DIGITAL-TO-ANALOG CONVERTERS =AD7541ASPECIFICATIONS Table 1. Design Sub Sub Sub Limit Group | Group | Group Test Symbol | Device | @ + 125C | 1 2,3 4 Test Condition Units Resolution RES -1,2 [12 Bits Relative Accuracy RA -1 1 1 1 + LSB max -2 1/2 1 2 2 Differential Nonlinearity DNL |-1 1 |} 1 All Grades Guaranteed +LSB -2 1/2 1 1/2 1/2 Monotonic to 12 Bits, T min tO Trnex Gain Error AE -1 8 6 8 +LSB max -2 5 6 5 3 Gain Tempco TCazn | ~1,2 [5 + ppm/C max Power Supply Rejection PSRR | -1,2 | 0.02 0.01 0.02 AVpp= + 5% +% per % max Output Leakage Current Pin 1 Iour: | 1,2 | 200 5 200 Digital Inputs = 0V +nA max Pin2 Iopur2 | 1,2 | 200 5 200 Digital Inputs = Vpp +nA max Output Current Settling Time 1,2 | 0.6 To + I/2LSB, Rour 1 = 1000, | xs typ Cour: = 13pF Digital Inputs = Vj,; to Vir or Vy to Vow Feedthrough Error FT -1,2 |1 Vaer= +10V mV p-ptyp 10kHz Sinewave Ta =+25C Reference Input Resistance Rw -1,2 |7 7 7 kN min -1,2 {18 18 18 kQ max Digital Input High Voltage Vin -1,2 [2.4 2.4 2.4 Vmin Digital Input Low Voltage Vi -1,2 | 0.8 0.8 0.8 Vmax Digital Input Leakage Current | Inv -1,2 }1 1 1 Vin = 0Vor Vop +pA max Digital Input Capacitance Cw -1,2 [8 pF max Output Capacitance Pin! Cour: | 1,2 | 200 Digital Inputs = Vin pF max Pin2 Courz | 1,2 | 70 Digital Inputs = Vin pF max Pin 1 Coum | 1,2 | 70 Digital Inputs = Viz. pF max Pin2 Courz | 1,2 | 200 Digital Inputs = Vi. pF max Supply Current from Vpp Ipp -1,2 {2 2 2 igital Inputs = Vn, or Vn mA max 500 100 $00 Digital Inputs=O0VorVpp | pA max NOTES Vop= + 15V; Vout: = Voutz = 9V3 Vagr = + 10V unless otherwise stated. ?Measured using internal feedbeck resistor and includes effect of leakage current and gain TC. "Feedthrough error can be reduced by connecting the lid of the ceramic package to ground. 8-142 DIGITAL-TO-ANALOG CONVERTERS REV. BAD7541A 3.2.1 Functional Block Diagram and Terminal Assignments. E Package (LCC) Vrer 10k 10k 10k o Fd . > N e 2 3 wn OUT1 20 19 c= NC a, ps: i i} ' % GND 4 bel Tp oy +o { {-o O OUT2 BIT 1 (MSB) 5 { a AD7541A T T T OUT1 BIT2 6 Aor view ; l | L__4,--J | 10k BIT3 7 jot to Scale ( I I 5 \ Rreeppack 3 Oo BIT4 8 BIT 1 (MSB) BIT 2 BIT 3 BIT 12 (LSB) AD7541A DIGITAL INPUTS (DTL/TTL/CMOS COMPATIBLE} 9 10 11 12 13 Logic: A switch is closed to Ioyt1 for we yr @ its digital input in a HIGH state. ereZ2eEE ao a ao a 3.2.4 Microcircuit Technology Group. This microcircuit is covered by technology group (80). 4.2.1 Life Test/Burn-In Circuit. Steady state life test is per MIL-STD-883 Method 1005. Burn-in is per MIL-STD-883 Method 1015 test condition (B). lout: Rre [18 - +10V lourz Vaer [17 GND Voo [16 wn + 15V DATA 100k _ ONE PER BOARD STANDARD BURN-IN- DATA LINEIS + 15V 18 Voo 17 BIT 12 (LSB) 16 BIT 1t 15 BIT 10 14 BITS DIGITAL-TO-ANALOG CONVERTERS 8-143 DIGITAL-TO-ANALOG CONVERTERS a