MAX4738:4.5 Ohm Quad SPST Analog Switches in UCSP

The MAX4737/MAX4738/MAX4739 low-voltage, low on-resistance (RON), quad single-pole/single throw (SPST) analog switches operate from a single +1.8V to +5.5V supply. These devices are designed for USB 1.1 and audio switching applications. The MAX4737/MAX4738/MAX4739 feature 4.5Ω RON (max) with 1.2Ω flatness and 0.4Ω matching between channels. These new switches feature guaranteed operation from +1.8V to +5.5V and are fully specified at 3V and 5V. These switches offer break-before-make switching (1ns) with tON <80ns and tOFF <40ns at +2.7V. The digital logic inputs are +1.8V logic compatible with a +2.7V to +3.6V supply. These switches are packaged in a chip-scale package (UCSP™), significantly reducing the required PC board area. The chip occupies only a 2mm x 2mm area and has a 4 x 4 bump array with a bump pitch of 0.5mm. These switches are also available in a 14-pin TSSOP package.

Key Features
  • USB 1.1 Signal Switching
  • 2ns (max) Differential Skew
  • -3dB Bandwidth: >300MHz
  • Low 20pF On-Channel Capacitance
  • Low RON
    • 4.5Ω (max) (+3V Supply)
    • 3Ω (max) (+5V Supply)
  • 0.4Ω (max) RON Match (+3V Supply)
  • 1.2Ω (max) RON Flatness (+3V Supply)
  • <0.5nA Leakage Current at +25°C
  • High Off-Isolation: -55dB (10MHz)
  • Low Crosstalk: -80dB (10MHz)
  • Low Distortion: 0.03%
  • +1.8V CMOS-Logic Compatible
  • Single-Supply Operation from +1.8V to +5.5V
  • Rail-to-Rail Signal Handling
MAX4737, MAX4738, MAX4739: Functional Diagram
MAX4737, MAX4738, MAX4739: Functional Diagram
Applications/Uses
  • Audio/Video Signal Routing
  • Battery-Operated Equipment
  • Communications Circuits
  • Data Acquisition Systems
  • Low-Voltage Data-Acquisition Systems
  • Sample-and-Hold Circuits
DataSheet
titleDownload file
MAX4737-MAX4739 Data SheetMAX4737-MAX4739.pdf
Parametrics
Part NumberProtocolConfig.ChannelsNormal PositionVSUPPLY (Single)
(V)
VSUPPLY (Single)
(V)
VSIGNAL
(V)
VSIGNAL
(V)
Dynamic Range (max)
(V)
RON
(Ω)
RFLAT(ON)
(Ω)
RFLAT(ON)
(Ω)
Bandwidth
(MHz)
IL(OFF)
(nA)
tON
(ns)
tOFF
(ns)
QINJECTION
(pC)
CON
(pF)
COFF
(pF)
Package/PinsBudgetary
Price
minmaxminmaxmaxmaxtypmaxmaxminmaxSee Notes
MAX4737USB Full-Speed
USB Low-Speed
SPST4Open1.85.505.55.54.50.61.23000.580405159TQFN/16
TSSOP/14
UCSP/16
$1.67 @1k
MAX4738ClosedTSSOP/14
UCSP/16
MAX4739Open/ClosedTSSOP/14
UCSP/16
Quality and Environmental Data
Related Products
  • MAX4723:4.5Ω Dual SPST Analog Switches in UCSP
  • MAX4721:4.5Ω Dual SPST Analog Switches in UCSP
  • MAX4722:4.5Ω Dual SPST Analog Switches in UCSP
  • MAX4717:4.5Ω/20Ω, 300MHz Bandwidth, Dual SPDT Analog Switches in UCSP
  • MAX4718:4.5Ω/20Ω, 300MHz Bandwidth, Dual SPDT Analog Switches in UCSP
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX4738EBE-TNo Longer AvailableUCSP,;16 pin;4.3 mm²-40°C to +85°CNo
MAX4738EUDNo Longer AvailableMAX4738EUD+TSSOP,;14 pin;33.4 mm²-40°C to +85°CNo
MAX4738EUD+ActiveTSSOP,;14 pin;33.4 mm²-40°C to +85°CLead Free
MAX4738EUD+TActiveTSSOP,;14 pin;33.4 mm²-40°C to +85°CLead Free
MAX4738EUD-TNo Longer AvailableMAX4738EUD+TTSSOP;14 pin-40°C to +85°CSee data sheet
MAX4737-MAX4739.pdf MAX4739
MAX4738.pdf MAX4738