MAX4947:Hex SPDT Data Switch

The MAX4947/MAX4948 analog switches operate from a single +1.8V to +5.5V supply. These switches feature a low 30pF (typ) capacitance for high-speed data switching applications. The MAX4947 is a triple double-pole/double-throw (DPDT) switch, and the MAX4748 is a hex single-pole/double-throw (SPDT) switch with one control logic input. The MAX4947 has three logic inputs to control the switches in pairs. The MAX4948 has one logic input and an enable input (active-low EN) to disable the switches. The MAX4947/MAX4948 are available in small 24-pin (4mm x 4mm) TQFN and 25-bump (2.5mm x 2.5mm) chip-scale packages (UCSP™).

Key Features
  • Multiplex SDIO or Memory Stick Interfaces
  • Ideal for High Speed Switching Applications
    • Low On-Resistance 4Ω (typ)
    • Low-Capacitance Switches, 30pF (typ)
  • Minimize Switching Foot print through High Integration
    • MAX4947 triple double-pole/double-throw (DPDT) switch
    • MAX4748 hex single-pole/double-throw (SPDT) switch
    • One control logic input
    • Small 25-Bump UCSP™ (2.5mm x 2.5mm) or 24- TQFN (4mm x 4mm)
  • Wide Supply Capability
    • 1.8V to 5.5V Supply Voltage Range Rail-to-Rail Signal Handling
MAX4947, MAX4948: Typical Operating Circuit
MAX4947, MAX4948: Typical Operating Circuit
Applications/Uses
  • Cell Phones
  • PDAs
  • SDIO/Memory Stick
  • UART Signal Switching
  • USB Signal Switching
DataSheet
titleDownload file
MAX4947-MAX4948 Data SheetMAX4947-MAX4948.pdf
Parametrics
Part NumberConfig.ChannelsVSUPPLY (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
MAX49482-to-161.85.505.55.55.50.513003800800-3025TQFN/24
UCSP/25
$2.94 @1k
MAX49472-to-1
DPDT
10TQFN/24
UCSP/25
$3.05 @1k
Design kits & evaluation modules
Quality and Environmental Data
Related Products
  • MAX4910:Quad-SPDT Clickless Audio Switches with Negative Signal Handling
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX4947EBA+TNo Longer AvailableMAX4947ERA+TUCSP,;25 pin;6.9 mm²-40°C to +85°CLead Free
MAX4947ERA+TActiveUCSP,;25 pin;6.9 mm²-40°C to +85°CLead Free
MAX4947ETGNo Longer AvailableMAX4947ETG+TQFN,;24 pin;16.8 mm²-40°C to +85°CNo
MAX4947ETG+ActiveTQFN,;24 pin;16.8 mm²-40°C to +85°CLead Free
MAX4947ETG+TActiveTQFN,;24 pin;16.8 mm²-40°C to +85°CLead Free
MAX4947ETG-TNo Longer AvailableMAX4947ETG+TQFN;-40°C to +85°CSee data sheet
MAX4947ETG/GG8ActiveTQFN;-40°C to +85°CSee data sheet
MAX4947-MAX4948.pdf MAX4948
MAX4947-MAX4948_cn.pdf MAX4948
MAX4947.pdf MAX4947
MAX4947-MAX4948_cn.pdf MAX4948