Datasheet

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March 2011

FSA2156 Rev. 1.0.4

FSA2156 — Low-Voltage SPST 0.4Ω Analog Switch

FSA2156

Low-Voltage SPST 0.4Ω Analog Switch

Features

 Maximum 0.7Ω On Resistance (R

) for

+2.7V Supply

 0.25Ω Maximum R

Flatness for +2.7V Supply

 Space-Saving MicroPak™

and

SC70 Packaging

 Broad V

Operating Range: 1.65 to 4.3V

 Fast Turn-on and Turn-off Times

 Over-Voltage Tolerant TTL-Compatible Control Input

 Suitable for 2 UL USB2.0 Applications: 200mA

 Low I

CCT

Current Over Expanded Control Input Range

Description

The FSA2156 is a high-performance Single-Pole Single-

Throw (SPST) analog switch that features ultra low R

of 0.4 (typical) at 2.7V V

. The FSA2156 operates

over the wide V

range of 1.65V to 4.3V and is

fabricated with sub-micron CMOS technology to achieve

fast switching speeds. The select input is TTL-level

compatible.

FSA2156 features very low quiescent current even when

the control voltage is lower than the V

supply. This

feature facilitates longer battery life in mobile handset

applications and allows for the direct interface with

baseband-processor, general-purpose I/Os.

Ordering Information

Part Number Top Mark Package Description Packing Method

FSA2156P6X 256 6-lead SC70, EIAJ SC88, 1.25mm Wide

3000 Units on Tape and

Reel

FSA2156L6X FY 6-lead MicroPak™, 1.0mm Wide

5000 Units on Tape and

Reel

FSA2156FHX FY 6-Lead, MicroPak2™, 1x1mm Body, .35mm Pitch 5000 Units on Tape and Reel

Summary of content (11 pages)

PAGE 1
FSA2156 Low-Voltage SPST 0.4Ω Analog Switch Features Description  Maximum 0.7Ω On Resistance (RON) for The FSA2156 is a high-performance Single-Pole SingleThrow (SPST) analog switch that features ultra low RON of 0.4 (typical) at 2.7V VCC. The FSA2156 operates over the wide VCC range of 1.65V to 4.3V and is fabricated with sub-micron CMOS technology to achieve fast switching speeds. The select input is TTL-level compatible.
PAGE 2
Figure 1. A 1 6 VCC VCC 1 6 A GND 2 5 NC NC 2 5 B B 3 4 Sel Sel 3 4 GND SC70 Pin Assignments (Top View) Figure 3. Figure 2.
PAGE 3
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. Symbol Parameter Min. Max. Unit VCC Supply Voltage -0.5 4.6 V VSW Switch I/O Voltage(1) -0.5 VCC + 0.
PAGE 4
All typical values are at 25°C unless otherwise specified. Symbol Parameter Condition VCC (V) Min. VIH VIL Input Voltage High Input Voltage Low TA=-40 to +85°C TA=+25°C Typ. Max. Min. 3.6 to 4.3 1.4 2.7 to 3.6 1.3 2.3 to 2.7 1.1 1.65 to 1.95 0.9 V 3.6 to 4.3 0.7 2.7 to 3.6 0.5 2.3 to 2.7 0.4 1.65 to 1.95 0.4 Control Input Leakage VCNTRL=0 to VCC 1.65 to 4.3 INO(0FF) Off Leakage Current of Port B VA=0.3V, VCC – 0.3V, VB=0.3V, VCC – 0.3V or Floating, Figure 5 1.95 to 4.
PAGE 5
All typical values are at 25°C unless otherwise specified. Symbol Parameter Condition TA=-40ºC to +85ºC TA=+25ºC VCC (V) Min. Typ. Max. tON Turn-On Time VB=1.5V, RL=50Ω, CL=35pF Turn-Off Time VB=1.5V, RL=50Ω, CL=35pF 55 60 2.7 to 3.6 60 65 2.3 to 2.7 65 70 ns Figure 7 Figure 8 3.6 to 4.3 65 70 2.7 to 3.6 70 75 2.3 to 2.7 75 80 ns Figure 7 Figure 8 pC Figure 11 90 2.3 to 4.3 6 1.65 to 1.95 1.3 f=100kHz RT=50Ω 1.65 to 4.
PAGE 6
VON Floating, 0.3V or Vcc-0.3V FSA2156 B FSA2156 B IA(OFF) A A A VSW VSW ION GND VCNTRL GND VCNTRL GND RON = VON / ION Figure 4. On Resistance Figure 5. Off Leakage FSA2156 B Floating B FSA2156 A GND A VSW VCNTRL © 2006 Fairchild Semiconductor Corporation FSA2156 Rev. 1.0.4 RL VOUT RS VCNTRL On Leakage Figure 8. CL GND GND GND Figure 6. A VSW IA(ON) RL and CL are functions of the application environment (see AC/DC tables for values).
PAGE 7
Network Ana lyzer Network Analyzer FSA 215 6 RS RS FSA2156 GND VIN RT VS VS GND GND VCNTRL GND V IN V CNTRL GND GND GND RT GND GND V OUT VOUT CL RT GND R S and R T are fun ction s of the app lication en viron men t (see AC/DC tab les for value s). Off isolation = 20 Log (V OUT/V IN). GND RT and CL are functions of the application environment (see AC/DC tables for values). CL includes test fixtures and stray capacitance. Figure 9. Bandwidth Generator B RS VS Figure 10.
PAGE 8
FSA2156 — Low-Voltage SPST 0.4Ω Analog Switch Physical Dimensions SYMM C L 2.00±0.20 0.65 A 0.50 MIN 6 4 B PIN ONE 1.25±0.10 1 1.90 3 0.30 0.15 (0.25) 0.40 MIN 0.10 0.65 A B 1.30 LAND PATTERN RECOMMENDATION 1.30 1.00 0.80 SEE DETAIL A 1.10 0.80 0.10 C 0.10 0.00 C 2.10±0.30 SEATING PLANE NOTES: UNLESS OTHERWISE SPECIFIED GAGE PLANE (R0.10) 0.25 0.10 0.20 A) THIS PACKAGE CONFORMS TO EIAJ SC-88, 1996. B) ALL DIMENSIONS ARE IN MILLIMETERS.
PAGE 9
2X 0.05 C 1.45 B 2X (1) 0.05 C (0.254) (0.49) 5X 1.00 (0.75) PIN 1 IDENTIFIER 5 (0.52) 1X A TOP VIEW 0.55MAX (0.30) 6X PIN 1 0.05 C 0.05 0.00 RECOMMENED LAND PATTERN 0.05 C C 0.25 0.15 6X 1.0 DETAIL A 0.10 0.05 0.45 0.35 0.10 0.00 6X C B A C 0.40 0.30 0.35 5X 0.25 0.40 5X 0.30 0.5 (0.05) 6X Notes: (0.13) 4X BOTTOM VIEW DETAIL A PIN 1 TERMINAL 0.075 X 45 CHAMFER 1. CONFORMS TO JEDEC STANDARD M0-252 VARIATION UAAD 2. DIMENSIONS ARE IN MILLIMETERS 3. DRAWING CONFORMS TO ASME Y14.
PAGE 10
FSA2156 — Low-Voltage SPST 0.4Ω Analog Switch Physical Dimensions (Continued) 0.89 0.35 0.05 C 1.00 2X B A 5X 0.40 PIN 1 MIN 250uM 0.66 1.00 1X 0.45 6X 0.19 0.05 C TOP VIEW RECOMMENDED LAND PATTERN FOR SPACE CONSTRAINED PCB 2X 0.90 0.05 C 0.35 0.55MAX C 5X 0.52 SIDE VIEW 0.73 (0.08) 4X 1 DETAIL A 2 1X 0.57 0.09 0.19 6X 3 0.20 6X ALTERNATIVE LAND PATTERN FOR UNIVERSAL APPLICATION (0.05) 6X 5X 0.35 0.25 0.35 6 5 4 0.60 (0.08) 4X BOTTOM VIEW 0.10 .05 C C B A 0.40 0.
PAGE 11
FSA2156 — Low-Voltage SPST 0.4Ω Analog Switch © 2006 Fairchild Semiconductor Corporation FSA2156 Rev. 1.0.4 www.fairchildsemi.