MAX4685 Maxim, MAX4685 Datasheet

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MAX4685

Manufacturer Part Number
MAX4685
Description
The MAX4684/MAX4685 low on-resistance (RON), low-voltage, dual single-pole/double-throw (SPDT) analog switches operate from a single +1
Manufacturer
Maxim
Datasheet

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The MAX4684/MAX4685 low on-resistance (R
voltage, dual single-pole/double-throw (SPDT) analog
switches operate from a single +1.8V to +5.5V supply.
The MAX4684 features a 0.5Ω (max) R
switch and a 0.8Ω (max) R
+2.7V supply. The MAX4685 features a 0.8Ω max on-
resistance for both NO and NC switches at a +2.7V
supply.
Both parts feature break-before-make switching action
(2ns) with t
tal logic inputs are 1.8V logic-compatible with a +2.7V to
+3.3V supply.
The MAX4684/MAX4685 are packaged in the chipscale
package (UCSP)™, significantly reducing the required
PC board area. The chip occupies only a 2.0mm
1.50mm area. The 4
spaced with a 0.5mm bump pitch.
UCSP is a trademark of Maxim Integrated Products, Inc.
µMAX is a registered trademark of Maxim Integrated Products,
Inc.
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
________________________Applications
19-1977; Rev 4; 1/09
Continued at end of data sheet.
Speaker Headset Switching
MP3 Players
Power Routing
Battery-Operated Equipment
Relay Replacement
Audio and Video Signal Routing
Communications Circuits
PCMCIA Cards
Cellular Phones
Modems
ON
= 50ns and t
________________________________________________________________ Maxim Integrated Products
TOP VIEW
General Description
3 array of solder bumps are
OFF
COM1
ON
NC1
NO1
IN1
= 40ns at +3V. The digi-
C1
C2
C3
C4
for its NO switch at a
MAX4684/MAX4685
0.5 Ω Ω /0.8 Ω Ω Low-Voltage, Dual SPDT
Pin Configurations/Functional Diagrams/Truth Table
UCSP
GND
B1
B4
V+
ON
A1
A2
A3
A4
NC2
IN2
COM2
NO2
for its NC
ON
SWITCHES SHOWN FOR LOGIC "0" INPUT
), low-
IN_
0
1
MAX4684/MAX4685
Analog Switches in UCSP
NO_
OFF
ON
♦ 12-Bump, 0.5mm-Pitch UCSP
♦ NC Switch R
♦ NO Switch R
♦ R
♦ R
♦ +1.8V to +5.5V Single-Supply Operation
♦ Rail-to-Rail Signal Handling
♦ 1.8V Logic Compatibility
♦ Low Crosstalk: -68dB (100kHz)
♦ High Off-Isolation: -64dB (100kHz)
♦ THD: 0.03%
♦ 50nA (max) Supply Current
♦ Low Leakage Currents
+ Denotes a lead(Pb)-free/RoHS-compliant package.
Note: Requires special solder temperature profile described in
the Absolute Maximum Ratings section.
* UCSP reliability is integrally linked to the user’s assembly
methods, circuit board material, and environment. Refer to the
UCSP Reliability Notice in the UCSP Reliability section of this
data sheet for more information.
** EP = Exposed Pad
T = Tape and reel.
M A X4 6 8 4 E BC + T
M AX 4684E TB+ T
M AX 4684E U B+ T
M A X4 6 8 5 E BC + T
M AX 4685E TB+ T
M AX 4685E U B+ T
NC_
OFF
ON
ON
ON
0.5Ω max (+2.7V Supply) (MAX4684)
0.8Ω max (+2.7V Supply) (MAX4685)
0.8Ω max (+2.7V Supply)
0.06Ω (max)
0.15Ω (max)
1nA (max) at T
PART
Match Between Channels
Flatness Over Signal Range
COM1
NO1
NC1
IN1
V+
1
2
3
4
5
MAX4684/MAX4685
ON
ON
µMAX
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
A
Ordering Information
= +25°C
10 NO2
9
8
7
6
COM2
IN2
NC2
GND
PIN /B U M P-
PACKAGE
12 UCSP*
10 TD FN - E P **
10 µMAX
12 UCSP*
10 TD FN - E P **
10 µMAX
Features
®
MARK
TOP
AAG
AAG
AAH
AAF
1

Related parts for MAX4685

MAX4685 Summary of contents

Page 1

... The MAX4684 features a 0.5Ω (max) R switch and a 0.8Ω (max) R for its NO switch +2.7V supply. The MAX4685 features a 0.8Ω max on- resistance for both NO and NC switches at a +2.7V supply. Both parts feature break-before-make switching action (2ns) with t = 50ns and t = 40ns at +3V ...

Page 2

... MAX4685 V+ = 2.7V 100mA; COM 2.7V 100mA; COM 1. MAX4684 2. 100mA MAX4685 2.7V 100mA; COM 3.3V 3V, 0.3V 0.3V, 3V COM 3. 0. unconnected ; ...

Page 3

... Note 4: Guaranteed by design. Note 5: Δ ON(MAX) ON(MIN) Note 6: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specified analog signal ranges. Note 7: Leakage parameters are 100% tested at T Note 8: Off-isolation = 20log (V 10 COM Note 9: UCSP and TDFN parts are 100% tested at +25°C only and guaranteed by design and correlation at the full hot-rated temperature. Note 10: -40° ...

Page 4

... V (V) COM MAX4685 NC ON-RESISTANCE vs. COM VOLTAGE 0. +5V 0.40 0. +85°C 0.30 A 0.25 0.20 0. +25° -40° (V) COM MAX4685 NC ON-RESISTANCE vs. COM VOLTAGE 0. +3V 0. +85°C A 0.40 0.35 0. +25°C A 0.25 0. -40°C A 0.15 0.10 0 0.5 1.0 1.5 2.0 2.5 V (V) COM NO ON-RESISTANCE vs. COM VOLTAGE 2 +1.8V 2 +2.0V 1 +2.3V 1 +2. +3.0V ...

Page 5

... LOGIC THRESHOLD VOLTAGE vs. SUPPLY VOLTAGE 2.0 1.5 V RISING IN 1.0 V FALLING IN 0 (V) SUPPLY MAX4685 ON/OFF-LEAKAGE CURRENT vs. TEMPERATURE 1000 100 I COM(ON COM(OFF) 1 -40 - TEMPERATURE (°C) _______________________________________________________________________________________ Analog Switches in UCSP Typical Operating Characteristics (continued) TURN-ON/TURN-0FF TIMES vs. SUPPLY VOLTAGE ...

Page 6

... The part features a 0.5Ω max R for its NC switch and a 0.8Ω max RON ON for its NO switch at the 2.7V supply. The MAX4685 fea- tures a 0.8Ω max on-resistance for both NO and NC switches at the +2.7V supply. Applications Information Digital Control Inputs The MAX4684/MAX4685 logic inputs accept ...

Page 7

... INCLUDES FIXTURE AND STRAY CAPACITANCE OUT Figure 2. Switching Time MAX4684 MAX4685 NC_ V N_ NO_ IN_ LOGIC GND INPUT C INCLUDES FIXTURE AND STRAY CAPACITANCE. L Figure 3. Break-Before-Make Interval _______________________________________________________________________________________ Analog Switches in UCSP Mechanical stress performance is a greater considera- tion for a UCSP package. UCSPs are attached through direct solder contact to the user’ ...

Page 8

... OUT L IN DEPENDS ON SWITCH CONFIGURATION; INPUT POLARITY DETERMINED BY SENSE OF SWITCH. V OUT OFF-ISOLATION = 20log 50Ω OUT ON-LOSS = 20log OUT CROSSTALK = 20log V IN REF 50Ω MAX4684/MAX4685 NO2 COM2 NO1 9 3 IN2 COM1 8 IN1 7 NC2 4 NC1 6 GND 5 *EP 3mm ✕ ...

Page 9

... Low-Voltage, Dual SPDT For the latest package outline information and land patterns www.maxim-ic.com/packages. PACKAGE TYPE 12 UCSP 10 TDFN-EP 10 µMAX _______________________________________________________________________________________ Analog Switches in UCSP Package Information PACKAGE CODE B12-4 T1033-1 U10-2 DOCUMENT NO. 21-0104 21-0137 21-0061 9 ...

Page 10

... Added lead-free packaging and exposed pad note Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. ...

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