MAX4740, MAX4740H:Quad SPDT Audio Switches

Pin-to-Pin Compatible with the ST Microelectronics Quad SPDT Analog Switch STG3699

The MAX4740/MAX4740H low on-resistance (0.61Ω typ) analog switches operate from a single 1.6V to 5.5V supply. The MAX4740/MAX4740H are quad, single-pole, double-throw (SPDT) switches and are configured to route audio signals. The MAX4740/MAX4740H are pin-to-pin compatible parts with the ST Microelectronics quad SPDT STG3699 analog switch. The MAX4740 is a quad SPDT switch and the MAX4740H is a quad SPDT switch that can be placed in a high-impedance mode. Switching logic is controlled by 2 control bits (CB1 and CB2). The MAX4740/MAX4740H also feature a low on-resistance match (0.06Ω) and low power-supply current (0.3µA), which increases battery life. The MAX4740/MAX4740H are available in a tiny 3mm x 3mm, 16-pin TQFN-EP, and 2.5mm x 2.5mm, 16-pin ultra-thin QFN packages.

Key Features
  • Low On-Resistance (0.61Ω typ)
  • 0.06Ω (typ) Channel-to-Channel Matching
  • 0.32Ω (typ) On-Resistance Flatness
  • 1.6V to 5.5V Single-Supply Voltage
  • High PSRR Reduces Supply Noise (-60dB typ)
  • 0.08% Total Harmonic Distortion
  • -68dB typ Crosstalk (100kHz)
  • -64dB typ Off-Isolation (100kHz)
  • Low Supply Current (0.3µA typ)
  • Low Leakage Current (0.1µA typ)
  • Pin-to-Pin Compatible with ST Micro STG3699
  • (3mm x 3mm) 16-Pin TQFN, and (2.5mm x 2.5mm) 16-Pin Ultra-Thin QFN Packages
MAX4740, MAX4740H: Typical Operating Circuit
MAX4740, MAX4740H: Typical Operating Circuit
Applications/Uses
  • Cellular Phones
  • Notebook Computers
  • PDAs and Other Handheld Devices
DataSheet
titleDownload file
MAX4740-MAX4740H Data SheetMAX4740-MAX4740H.pdf
Parametrics
Part NumberProtocolConfig.ChannelsVSUPPLY (Single)
(V)
VSUPPLY (Single)
(V)
VSIGNAL
(V)
VSIGNAL
(V)
Dynamic Range (max)
(V)
RON
(Ω)
RFLAT(ON)
(Ω)
RFLAT(ON)
(Ω)
Bandwidth
(MHz)
tON
(ns)
tOFF
(ns)
QINJECTION
(pC)
CON
(pF)
COFF
(pF)
Package/PinsBudgetary
Price
minmaxminmaxmaxmaxtypmaxminmaxSee Notes
MAX4740Audio2-to-1
DPDT
41.65.505.55.50.90.320.725021021045015040TQFN/16
UTQFN/16
$1.40 @1k
MAX4740HTQFN/16
UTQFN/16
$1.45 @1k
Quality and Environmental Data
Related Products
  • MAX4910:Quad-SPDT Clickless Audio Switches with Negative Signal Handling
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX4740ETE+ActiveTQFN,;16 pin;9.6 mm²-40°C to +85°CLead Free
MAX4740ETE+TActiveTQFN,;16 pin;9.6 mm²-40°C to +85°CLead Free
MAX4740EVE+TActiveUTQFN,;16 pin;6.8 mm²-40°C to +85°CLead Free
MAX4740HETE+ActiveTQFN,;16 pin;9.6 mm²-40°C to +85°CLead Free
MAX4740HETE+TActiveQFN;16 pin-40°C to +85°CSee data sheet
MAX4740-MAX4740H.pdf MAX4740H
MAX4740-MAX4740H_cn.pdf MAX4740H
MAX4740.pdf MAX4740H
MAX4740-MAX4740H_cn.pdf MAX4740H