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1.65 v to 3.6 v, single-channel level translator in sot-66 package adg3231 rev. b information furnished by analog devices is believed to be accurate and reliable. however, no responsibility is assumed by analog devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. specifications subject to change without notice. no license is granted by implication or otherwise under any patent or patent rights of analog devices. trademarks and registered trademarks are the property of their respective owners. one technology way, p.o. box 9106, norwood, ma 02062-9106, u.s.a. tel: 781.329.4700 www.analog.com fax: 781.461.3113 ?2006 analog devices, inc. all rights reserved. features operates from 1.65 v to 3.6 v supply rails unidirectional signal path up/down level translation ultracompact 6-lead sot-66 and sot-23 packages output short-circuit protection lvttl-/cmos-compatible inputs applications level translation in pdas handsets mp3 players functional block diagram a gnd y v cc1 v cc2 03298-001 figure 1. general description the adg3231 1 is a single-channel level translator designed on a submicron process that is guaranteed to operate over the 1.65 v to 3.6 v supply range. the device can be used in applications requiring communication between digital devices operating from multiple supply voltages. the logic levels on each side of the device are set by the two supply voltages, v cc1 for a and v cc2 for y. the signal path is unidirectional, meaning data can flow only from a to y. the adg3231 can operate with any combination of v cc1 and v cc2 supply voltages within the 1.65 v to 3.6 v range, allowing the part to perform either up (v cc1 < v cc2 ) or down (v cc1 > v cc2 ) level translation. the output stage is protected against current overload, which can occur when the y pin is accidentally shorted to the v cc2 or gnd rails. the adg3231 is available in ultracompact packages, the sot-66 (1.65 mm 1.66 mm 0.57 mm) and the sot-23 (2.8 mm 2.9 mm 1.3 mm), making the part ideal for applications where space is critical. product highlights 1. up/down level translation. 2. guaranteed to operate with any supply combination within the 1.65 v to 3.6 v range. 3. output short-circuit protection. 4. available in ultracompact sot-66 and sot-23 packages. 1 patent pending.
adg3231 rev. b | page 2 of 12 table of contents features .............................................................................................. 1 applications....................................................................................... 1 functional block diagram .............................................................. 1 general description ......................................................................... 1 product highlights ........................................................................... 1 revision history ............................................................................... 2 specifications..................................................................................... 3 absolute maximum ratings ............................................................4 esd caution...................................................................................4 pin configurations and function descriptions ............................5 typical performance characteristics ..............................................6 theory of operation .........................................................................9 outline dimensions ....................................................................... 10 ordering guide .......................................................................... 10 revision history 5/06rev. a to rev. b deleted figure 11 and figure 12..................................................... 7 changes to ordering guide .......................................................... 10 12/04rev. 0 to rev. a updated format..................................................................universal added sot-66 package .....................................................universal change to data sheet title.............................................................. 1 changes to features, applications, general description and product highlights sections .................................................... 1 added patent information .............................................................. 1 changes to figure 1...........................................................................1 changes to table 1.............................................................................3 changes to figure 2 and figure 3....................................................3 deleted tpc 1 to tpc 6 ...................................................................6 changes to figure 13 through figure 20........................................7 changes to theory of operation section.......................................9 updated outline dimensions....................................................... 10 changes to ordering guide .......................................................... 10 5/03revision 0: initial version
adg3231 rev. b | page 3 of 12 specifications v cc1 = v cc2 = 1.65 v to 3.6 v, gnd = 0 v. all specifications t min to t max , unless otherwise noted. temperature range for the b version is ?40c to +85c. table 1. parameter symbol conditions min typ 1 max unit logic inputs/outputs input high voltage 2 v ih v cc1 = 3.0 v to 3.6 v 1.35 v v cc1 = 2.3 v to 2.7 v 1.35 v v cc1 = 1.65 v to 1.95 v 0.65 v cc1 v input low voltage 2 v il v cc1 = 3.0 v to 3.6 v 0.8 v v cc1 = 2.3 v to 2.7 v 0.7 v v cc1 = 1.65 v to 1.95 v 0.35 v cc1 v output high voltage v oh i oh = C100 a, v cc2 = 3.0 v to 3.6 v 2.4 v i oh = C100 a, v cc2 = 2.3 v to 2.7 v 2.0 v i oh = C100 a, v cc2 = 1.65 v to 1.95 v v cc2 ? 0.45 v i oh = ?4 ma, v cc2 = 2.3 v to 2.7 v 2.0 v i oh = ?4 ma, v cc2 = 1.65 v to 1.95 v v cc2 ? 0.45 v i oh = ?8 ma, v cc2 = 3.0 v to 3.6 v 2.4 v output low voltage v ol i ol = 100 a, v cc2 = 3.0 v to 3.6 v 0.4 v i ol = 100 a, v cc2 = 2.3 v to 2.7 v 0.4 v i ol = 100 a, v cc2 = 1.65 v to 1.95 v 0.45 v i ol = 4 ma, v cc2 = 2.3 v to 2.7 v 0.4 v i ol = 4 ma, v cc2 = 1.65 v to 1.95 v 0.45 v i ol = 8 ma, v cc2 = 3.0 v to 3.6 v 0.4 v switching characteristics 2 propagation delay, t pd a to y t phl , t plh 3.3 v 0.3 v, c l = 30 pf, see figure 2 4 6.5 ns propagation delay, t pd a to y t phl , t plh 2.5 v 0.2 v, c l = 30 pf, see figure 2 4.5 6.5 ns propagation delay, t pd a to y t phl , t plh 1.8 v 0.15 v, c l = 30 pf, see figure 2 6.5 10.25 ns input leakage current i i 0 v in 3.6 v 1 a output leakage current i o 0 v in 3.6 v 1 a power requirements power supply voltages v cc1 1.65 3.6 v v cc2 1.65 3.6 v quiescent power supply current i cc1 digital inputs = 0 v or v cc1 2 a i cc2 digital inputs = 0 v or v cc2 2 a 1 all typical values are at v cc1 = v cc2 , t a = 25c, unless otherwise noted. 2 guaranteed by design, not subject to production test. input 0v v cc2 0v v cc1 50% 50% t plh t phl output 03298-020 figure 2. timing diagram
adg3231 rev. b | page 4 of 12 absolute maximum ratings t a = 25c, unless otherwise noted. table 2. parameter rating v cc to gnd ? 0.3 v to +4.6 v input voltage for a ? 0.3 v to v cc1 + 0.3 v dc output current 25 ma operating temperature range industrial (b version) ? 40c to +85c storage temperature range ?65c to +150c junction temperature 150c ja thermal impedance 6-lead sot-23 229c/w 6-lead sot-66 191c/w (4-layer board) lead temperature, soldering (10 sec) 300c ir reflow, peak temperature (<20 sec) 235c stresses above those listed under absolute maximum ratings may cause permanent damage to the device. this is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. only one absolute maximum rating may be applied at any one time. esd caution esd (electrostatic discharge) sensitive device. electrosta tic charges as high as 4000 v readily accumulate on the human body and test equipment and can discharge without detection. although this product features proprietary esd protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. therefore, proper esd precautions are recommended to avoid performance degradation or loss of functionality.
adg3231 rev. b | page 5 of 12 pin configurations and function descriptions nc = no connect v cc1 1 nc 2 a 3 v cc2 6 y 5 gnd 4 adg3231 top view (not to scale) 03298-002 pin 1 indicator figure 3. sot-23 03298-003 v cc2 1 y 2 gnd 3 v cc1 6 a 5 gnd 4 adg3231 top view (not to scale) pin 1 indicator figure 4. sot-66 table 3. pin function descriptions pin uber t23 t66 neonic description 1 6 v cc1 supply voltage 1. can be any supply voltage from 1.65 v to 3.6 v. 2 C nc not internally connected. 3 5 a digital input referred to v cc1 . 4 3, 4 gnd device ground pin. 5 2 y digital output referred to v cc2 . 6 1 v cc2 supply voltage 2. can be any supply voltage from 1.65 v to 3.6 v.
adg3231 rev. b | page 6 of 12 typical performance characteristics t a = 25c v cc2 = 2.5v v cc2 = 3.3v v cc1 (v) i cc1 (na) 5.0 4.5 4.0 2.5 3.0 3.5 1.5 2.0 0 1.0 0.5 1.5 2.0 2.5 3.0 3.5 4.0 03298-004 v cc2 = 1.8v figure 5. i cc1 vs. v cc1 t a = 25c v cc1 = 3.3v v cc1 = 2.5v v cc2 (v) i cc2 (na) 5.0 4.5 4.0 2.5 3.0 3.5 1.5 2.0 0 1.0 0.5 1.5 2.0 2.5 3.0 3.5 4.0 03298-005 v cc1 = 1.8v figure 6. i cc2 vs. v cc2 v cc1 = 3.3v v cc1 = 2.5v v cc1 = 1.8v v cc2 = 3.3v temperature (c) i cc1 (na) 30 25 15 20 10 0 5 0102030 50 40 60 70 80 03298-006 figure 7. i cc1 vs. temperature v cc2 = 3.3v v cc2 = 2.5v v cc2 = 1.8v v cc1 = 3.3v temperature (c) i cc2 (na) 30 25 15 20 10 ?5 0 5 0102030 50 40 60 70 80 03298-007 figure 8. i cc2 vs. temperature v cc1 = v cc2 = 3.3v v cc1 = v cc2 = 1.8v t a = 25c frequency (hz) i cc1 ( a) 80 70 50 60 40 0 10 20 30 10k 100k 1m 10m 100m 03298-008 figure 9. i cc1 vs. frequency v cc1 = v cc2 = 3.3v v cc1 = v cc2 = 1.8v t a = 25c frequency (hz) i cc2 (a) 2000 1800 1400 1600 1200 0 200 400 600 800 1000 10k 100k 1m 10m 100m 03298-009 figure 10. i cc2 vs. frequency
adg3231 rev. b | page 7 of 12 t lh, low-to-high transition t hl, high-to-low transition v cc1 = 3.3v v cc2 = 1.8v t a = 25c data rate 10mbps capacitive load (pf) rise/fall time (ns) 16 14 12 0 6 4 2 8 10 22 32 42 6252 72 82 92 102 03298-012 figure 11. rise/fall time vs. capacitive load (3.3 v to 1.8 v level translation) t lh, low-to-high transition t hl, high-to-low transition v cc1 = 1.8v v cc2 = 3.3v t a = 25c data rate 10mbps capacitive load (pf) rise/fall time (ns) 10 9 8 0 5 2 3 4 1 6 7 22 32 42 6252 72 82 92 102 03298-013 figure 12. rise/fall time vs. capacitive load (1.8 v to 3.3 v level translation) t plh, low-to-high transition t phl, high-to-low transition v cc1 = 3.3v v cc2 = 3.3v t a = 25c data rate 10mbps capacitive load (pf) propagation delay (ns) 8 0 5 2 3 4 1 6 7 22 32 42 6252 72 82 92 102 03298-014 figure 13. propagation delay vs. capacitive load t phl, a to y t plhl, a to y t a = 25c v cc1 = v cc2 supply voltage (v) propagation delay (ns) 8.0 0 2.0 4.0 6.0 1.5 2.0 2.5 3.0 3.5 4.0 03298-015 figure 14. propagation delay vs. supply voltage t phl, a to y t plh, a to y v cc1 = v cc2 = 3.3v temperature (c) propagation delay (ns) 4.0 0 1.0 2.0 3.0 ?40 ?20 0 20 40 60 80 03298-016 figure 15. propagation delay vs. temperature y 3.3v 1.8v a 3 2 03298-017 t a = 25c data rate = 10mhz figure 16. input/output v cc1 = 3.3 v, v cc2 = 1.8 v
adg3231 rev. b | page 8 of 12 y 3.3v a 2 1 3 03298-018 t a = 25c data rate = 10mhz 1.8v figure 17. input/output v cc1 = 1.8 v, v cc2 = 3.3 v v cc = 3.3v v cc = 3.3v v cc = 2.5v v cc = 2.5v v cc = 1.8v v cc = 1.8v t a = 25c v cc = v cc1 = v cc2 source sink current (ma) output voltage (v) 3.5 2.5 3.0 2.0 0 0.5 1.0 1.5 0 5 10 15 20 03298-019 figure 18. output voltage vs. sink and source current
adg3231 rev. b | page 9 of 12 theory of operation the adg3231 is a single-channel level translator designed on a submicron process that is guaranteed to operate over the 1.65 v to 3.6 v supply range. the device can be used in applications requiring communication between digital devices operating from multiple supply voltages. the logic levels on each side of the device are set by the two supply voltages, v cc1 for a, and v cc2 for y. the signal path is unidirectional, meaning data can flow only from a to y. the adg3231 can operate with any combination of v cc1 and v cc2 supply voltages within the 1.65 v to 3.6 v range, allowing the part to perform either up (v cc1 < v cc2 ) or down (v cc1 > v cc2 ) level translation. by limiting the current delivered into the load, for example, ~1.7 ma with v cc2 = 3.6 v, the output stage is protected against current overload, which can occur when the y pin is accidentally shorted to the v cc2 or gnd rails. the short-circuit protection circuitry works by limiting the output current when the output voltage exceeds v ol (a = 0 logic) or is less than v oh (a = 1 logic) threshold values specified for the v cc2 supply voltage used. figure 19 shows a typical application for the adg3231 where the device performs level translation from v cc1 -compatible levels to v cc2 -compatible levels to allow proper communication between the two digital devices, device 1 and device 2. signal output v cc2 device 2 signal input device 1 adg3231 a gnd y v cc2 v cc1 v cc1 03298-021 figure 19. typical application of the adg3231 level translator
adg3231 rev. b | page 10 of 12 outline dimensions 1 3 4 5 2 6 2.90 bsc 1.60 bsc 2.80 bsc 1.90 bsc 0.95 bsc 0.22 0.08 10 4 0 0.50 0.30 0.15 max 1.30 1.15 0.90 seating plane 1.45 max 0.60 0.45 0.30 pin 1 indicator compliant to jedec standards mo-178-ab seating plane 0.60 0.57 0.53 12 max top view 0.34 max 0.27 nom 0.18 0.17 0.13 bottom view 1.70 1.66 1.50 1.30 1.20 1.10 1.70 1.65 1.50 1 3 5 6 2 4 0.10 nom 0.05 min 0.20 min 0.50 bsc 0.25 max 0.17 min 0.30 0.23 0.10 0.26 0.19 0.11 pin 1 figure 20. 6-lead small outline transistor package [sot-23] (rj-6) dimensions shown in millimeters figure 21. 6-lead small outline transistor package [sot-66] (ry-6-1) dimensions shown in millimeters ordering guide model temperature range package description package option branding adg3231brj-reel ? 40c to +85c 6-lead sot-23 rj-6 w2b adg3231brj-reel7 ? 40c to +85c 6-lead sot-23 rj-6 w2b adg3231brjz-reel 1 ? 40c to +85c 6-lead sot-23 rj-6 w2b # adg3231brjz-reel7 1 ? 40c to +85c 6-lead sot-23 rj-6 w2b # ADG3231BRYZ-REEL7 1 ? 40c to +85c 6-lead sot-66 ry-6-1 01x 2 1 z = pb-free part, # denotes lead-free may be top or bottom marked. 2 x= date code.
adg3231 rev. b | page 11 of 12 notes
adg3231 rev. b | page 12 of 12 notes ?2006 analog devices, inc. all rights reserved. trademarks and registered trademarks are the property of their respective owners. c03298-0-5/06(b)

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