CMOS Latched 4-/8-Channel Analog Multiplexers ADG528A FEATURES FUNCTIONAL BLOCK DIAGRAMS 44 V Supply Maximum Rating V to V Analog Signal Range SS DD Single-/Dual-Supply Specifications Wide Supply Ranges (10.8 V to 16.5 V) Microprocessor Compatible (100 ns WR Pulse) Extended Plastic Temperature Range (40C to +85C) Low Leakage (20 pA typ) Low Power Dissipation (28 mW max) Available in 18-Lead DIP/SOIC and 20-Lead PLCC Packages Superior Alternative to: DG528 DG529 ADG529A is obsolete GENERAL DESCRIPTION PRODUCT HIGHLIGHTS The ADG528A and ADG529A are CMOS monolithic analog 1. Single-/dual-supply specifications with a wide tolerance. multiplexers with eight channels and four dual channels, respec- The devices are specified in the 10.8 V to 16.5 V range for tively. On-chip latches facilitate microprocessor interfacing. The both single- and dual-supplies. ADG528A switches one of eight inputs to a common output, 2. Easily Interfaced depending on the state of three binary addresses and an enable The ADG528A and ADG529A can be easily interfaced with input. The ADG529A switches one of four differential inputs to microprocessors. The WR signal latches the state of the a common differential output, depending on the state of two address control lines and the enable line. The RS signal binary addresses and an enable input. Both devices have TTL clears both the address and enable data in the latches result- and 5 V CMOS logic-compatible digital inputs. ing in no output (all switches off). RS can be tied to the The ADG528A and ADG529A are designed on an enhanced microprocessor reset pin. 2 LC MOS process, which gives an increased signal capability of 3. Extended Signal Range V to V and enables operation over a wide range of supply 2 SS DD The enhanced LC MOS processing results in a high breakdown voltages. The devices can comfortably operate anywhere in the and an increased analog signal range of V to V . SS DD 10.8 V to 16.5 V single- or dual-supply range. These 4. Break-Before-Make Switching multiplex-ers also feature high switching and low R . ON Switches are guaranteed break-before-make so that input signals are protected against momentary shorting. The ADG529A is no longer available. 5. Low Leakage Leakage currents in the range of 20 pA make these multiplexers suitable for high precision circuits.ADG528ASPECIFICATIONS DUAL SUPPLY (V = +10.8 V to +16.5 V, V = 10.8 V to 16.5 V, unless otherwise noted.) DD SS ADG528A ADG528A ADG528A ADG529A ADG529A ADG529A K Version B Version T Version 40C to 40C to 55C to Parameter +25C +85C +25C +85C +25C +125C Units Comments ANALOG SWITCH Analog Signal Range V V V V V V V min SS SS SS SS SS SS V V V V V V V max DD DD DD DD DD DD R 280 280 280 typ 10 V V +10 V, I = 1 mA ON S DS Test Circuit 1 450 600 450 600 450 600 max 300 400 300 400 max V = 15 V (10%), V = 15 V (10%) DD SS 300 400 max V = 15 V (5%), V = 15 V (5%) DD SS R Drift 0.6 0.6 0.6 %/C typ 10 V V +10 V, I = 1 mA ON S DS R Match 5 5 5 % typ 10 V V +10 V, I = 1 mA ON S DS I (OFF), Off Input S Leakage 0.02 0.02 0.02 nA typ V1 = 10 V, V2 = 10 V Test Circuit 2 150 150 150 nA max I (OFF), Off Input D Leakage 0.04 0.04 0.04 nA typ V1 = 10 V, V2 = 10 V Test Circuit 3 ADG528A 1 100 1 100 1 100 nA max ADG529A 1 50 1 50 1 50 nA max I (ON), On Channel D Leakage 0.04 0.04 0.04 nA typ V1 = 10 V, V2 = 10 V Test Circuit 4 ADG528A 1 100 1 100 1 100 nA max ADG529A 1 50 1 50 1 50 nA max I , Differential Off DIFF Output Leakage (ADG529A only) 25 25 25 nA max V1 = 10 V, V2 = 10 V Test Circuit 5 DIGITAL CONTROL V , Input High Voltage 2.4 2.4 2.4 V min INH V , Input Low Voltage 0.8 0.8 0.8 V max INL I or I 11 1 A max V = 0 to V INL INH IN DD C Digital Input IN Capacitance 8 8 8 pF max 1 DYNAMIC CHARACTERISTICS t 200 200 200 ns typ V1 = 10 V, V2 = 10 V Test Circuit 6 TRANSITION 300 400 300 400 300 400 ns max t 50 50 50 ns typ Test Circuit 7 OPEN 25 10 25 10 25 10 ns min t (EN, WR) 200 200 200 ns typ Test Circuits 8 and 9 ON 300 400 300 400 300 400 ns max t (EN, RS) 200 200 200 ns typ Test Circuits 8 and 10 OFF 300 400 300 400 300 400 ns max t Write Pulse Width 100 120 100 120 100 130 ns min See Figure 1 W t Address, S Enable Setup Time 100 100 100 ns min See Figure 1 t , Address, H Enable Hold Time 10 10 10 ns min See Figure 1 t Reset Pulse Width 100 100 100 ns min See Figure 2 RS OFF Isolation 68 68 68 dB typ V = 0.8 V, R = 1 k , C = 15 pF, EN L L 50 50 50 dB min V = 7 V rms, f = 100 kHz S C (OFF) 5 5 5 pF typ V = 0.8 V S EN C (OFF) D ADG528A 22 22 22 pF typ V = 0.8 V EN ADG529A 11 11 11 pF typ Q , Charge Injection 4 4 4 pC typ R = 0 , V = 0 V Test Circuit 11 INJ S S 2 REV. C