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ADG3231BRJ-REEL7-ADG3231BRJZ-REEL-ADG3231BRJZ-REEL7
Single-Channel Level Translator with Bi-directional 1.65 V to 3.6 V Level Shift
Low Voltage, Single-Channel
Level Translator*Patent Pending
FEATURES
Operates from 1.65 V to 3.6 V Supply Rails
Unidirectional Signal Path, Bidirectional Level Translation
Tiny 6-Lead SOT-23 Package
Short Circuit Protection
LVTTL/CMOS Compatible Inputs
APPLICATIONS
Level Translation
Low Voltage ASIC Translation
Serial Interface Translation
FUNCTIONAL BLOCK DIAGRAM
GND
VCC2VCC1
GENERAL DESCRIPTIONThe ADG3231 is a level translator designed on a submicron
process that operates from supplies as low as 1.65 V. The device
is guaranteed for operation over the supply range 1.65 V to 3.6 V.
It operates from two supply voltages, allowing bidirectional level
translation, i.e., it translates low voltages to higher voltages and
vice versa. The signal path is unidirectional, meaning data may ow only from A1 to Y1.
This type of device may be used in applications requiring commu-
nication between devices operating from different supply levels.
The level translator is packaged in one of the smallest footprints
available for its pin count. The 6-lead SOT-23 package requires
only a maximum of 5.28 mm � 5.28 mm board space.
PRODUCT HIGHLIGHTS1. Bidirectional level translation matches any voltage level from
1.65 V to 3.6 V.
2. The device offers high performance and is fully guaranteed
across the supply range.
3. Short circuit protection.
4. Tiny SOT-23 package.
REV. 0
ADG3231–SPECIFICATIONS1(VCC1 = VCC2 = 1.65 V to 3.6 V, GND = 0 V. All specifi cations TMIN to TMAX, un less
oth er wise noted.)
Parameter Symbol Conditions Min Typ2 Max UnitLOGIC INPUTS/OUTPUTS3Input High Voltage4 VIH VCC1 = 3.0 V to 3.6 V 1.35 V VIH VCC1 = 2.3 V to 2.7 V 1.35 V VIH VCC1 = 1.65 V to 1.95 V 0.65 VCC VInput Low Voltage4 VIL VCC1 = 3.0 V to 3.6 V 0.8 V VIL VCC1 = 2.3 V to 2.7 V 0.7 V VIL VCC1 = 1.65 V to 1.95 V 0.35 VCC VOutput High Voltage VOH IOH = –100 µA, VCC2 = 3.0 V to 3.6 V 2.4 V VCC2 = 2.3 V to 2.7 V 2.0 V VCC2 = 1.65 V to 1.95 V VCC – 0.45 V IOH = –4 mA, VCC2 = 2.3 V to 2.7 V 2.0 V VCC2 = 1.65 V to 1.95 V VCC – 0.45 V IOH = –8 mA, VCC2 = 3.0 V to 3.6 V 2.4 VOutput Low Voltage VOL IOH = +100 µA, VCC2 = 3.0 V to 3.6 V 0.4 V VCC2 = 2.3 V to 2.7 V 0.4 V VCC2 = 1.65 V to 1.95 V 0.45 V IOH = +4 mA, VCC2 = 2.3 V to 2.7 V 0.4 V VCC2 = 1.65 V to 1.95 V 0.45 V IOH = +8 mA, VCC2 = 3.0 V to 3.6 V 0.4 VPropagation Delay, tPD A1 to Y1 tPHL, tPLH 3.3 V ± 0.3 V, CL = 30 pF, VT = VCC/2 4 6.5 nsPropagation Delay, tPD A1 to Y1 tPHL, tPLH 2.5 V ± 0.2 V, CL = 30 pF, VT = VCC/2 4.5 6.5 nsPropagation Delay, tPD A1 to Y1 tPHL, tPLH 1.8 V ± 0.15 V, CL = 30 pF, VT = VCC/2 6.5 10.25 nsInput Leakage Current II 0 � VIN � 3.6 V ±1 µAOutput Leakage Current IO 0 � VIN � 3.6 V ±1 µA
POWER REQUIREMENTSPower Supply Voltages VCC1 1.65 3.6 V VCC2 1.65 3.6 VQuiescent Power Supply Current ICC1 Digital Inputs = 0 V or VCC 2 µA ICC2 Digital Inputs = 0 V or VCC 2 µA
NOTES
1Temperature range is as follows: B Version: –40°C to +85°C.
2 All typical values are at VCC1 = VCC2, TA = 25°C, unless otherwise stated.
3 VIL and VIH levels are specifi ed with respect to VCC1; VOH and VOL levels are with respect to VCC2.
4 Guaranteed by design, not subject to production test.
5 See Test Circuit and Waveforms.
Specifi cations subject to change without notice.
CAUTIONESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily ac cu mu late
on the human body and test equipment and can discharge without detection. Although the ADG3231
features proprietary ESD pro tec tion circuitry, permanent damage may occur on devices subjected to high
energy electrostatic discharges. Therefore, proper ESD pre cau tions are rec om mend ed to avoid per for mance
deg ra da tion or loss of functionality.
ABSOLUTE MAXIMUM RATINGS*(TA = 25°C, unless otherwise noted.)
VCC to GND . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +4.6 V
A1 Input Voltage . . . . . . . . . . . . . . . . . . . –0.3 V to VCC1 +0.3 V
DC Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 mA
Operating Temperature Range
Industrial (B Version) . . . . . . . . . . . . . . . . . . –40°C to +85°C
Storage Temperature Range . . . . . . . . . . . . . –65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . .150°C
6-Lead SOT-23, qJA Thermal Impedance . . . . . . . . . . . . . . . . . . . . .229°C/W
Lead Temperature, Soldering (10 seconds) . . . . . . . . . . . 300°C
IR Refl ow, Peak Temperature (<20 seconds) . . . . . . . . . . 235°C
*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 listed in the operational sections 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.
PIN CONFIGURATION
ORDERING GUIDE
Model Temperature Range Package Description Branding Package OptionADG3231BRJ-REEL –40°C to +85°C SOT-23 W2B RJ-6
ADG3231BRJ-REEL7 –40°C to +85°C SOT-23 W2B RJ-6
PIN FUNCTION DESCRIPTIONS
Pin Mnemonic Description1 VCC1 Supply Voltage 1, can be any supply voltage from 1.65 V to 3.6 V.
2 NC Not Internally Connected.
3 A1 Digital Input Referred to VCC1.
4 GND Device Ground Pin.
5 Y1 Digital Output Referred to VCC2.
6 VCC2 Supply Voltage 2, can be any supply voltage from 1.65 V to 3.6 V.
ADG3231–Typical Performance Characteristics
VCC1 – V
CC1
– nA
1.52.03.02.53.54.0TPC 1. ICC1 vs. VCC1
TPC 4. ICC2 vs. Temperature
SUPPLY – V
TIME – ns4
1.52.03.02.53.54.0TPC 7. Enable, Disable Time vs. Supply
VCC2 – V
ICC2
– nA
1.52.03.02.53.54.0TPC 2. ICC2 vs. VCC2
TPC 5. ICC1 vs. Frequency
TPC 8. Enable, Disable Time
vs. Temperature
TPC 3. ICC1 vs. Temperature
TPC 6. ICC2 vs. Frequency
CAPACITIVE LOAD – pF
RISE/FALL TIME – ns10292827262524232TPC 9. Rise/Fall Time vs.
Capacitive Load, A1–Y1
CAPACITIVE LOAD – pF
RISE/FALL TIME – ns10292827262524232TPC 10. Rise/Fall Time vs.
Capacitive Load, A1–Y1
TPC 13 Propagation Delay
vs. Temperature
CURRENT – mA
VOLTAGE – V
02015105TPC 16. Y1 Sink and Source Current
TPC 11. Propagation Delay
vs. Capacitive Load, A1–Y1
TPC 14. Input/Output
VCC1 = 3.3 V, VCC2 = 1.8 V
SUPPLY – V
PROPAGATION DELAY – ns
1.52.03.02.53.54.0TPC 12. Propagation Delay
vs. Supply, Bypass Mode
TPC 15. Input/Output
VCC1 = 1.8 V, VCC2 = 3.3 V
ADG3231
TEST CIRCUITFigure 1. Propagation Delay
DESCRIPTIONThe ADG3231 is a level translating device designed on a submicron
process that operates from supplies as low as 1.65 V. The device is
guaranteed for operation over the supply range 1.65 V to 3.6 V.
It operates from two supply voltages, allowing bidirectional level
translation, i.e., it translates low voltages to high voltages and vice
versa. The signal path is unidirectional, meaning data may only ow from A to Z.
A1 InputThe A1 input is capable of accepting inputs outside the VCC1 supply
range. For example, the VCC1 supply applied to the device could
be 1.8 V while the preceding device could be supplied from a 2.5 V or
3.3 V supply rail. There are no internal diodes to the supply rails,
so the ADG3231 can handle inputs above the supply but inside
the absolute maximum ratings stated.
Normal OperationThe signal path is from A1 to Y1. The device will level translate
the signal applied to A1 to a VCC1 logic level (this level translation
can be to either a higher or a lower supply) and route the signal
to the Y1 output, which will have standard VOL/VOH levels for
VCC2 supplies.
The supplies in Figure 2 may be any combination of supplies,
e.g., VCC1 and VCC2 may be anywhere in the range of 1.65 V to
3.6 V.
SIGNAL OUTPUT
VCC2
SIGNAL INPUT
GND
VCC2VCC1VCC1Figure 2. Typical Operation of the ADG3231 Level Translating Switch
