ADG725 Differential 16-Channel, Serially Controlled 3.5 Ω 1.8 V to 5.5 V, ±2.5 V, Analog Multiplexer

3-Wire Serial Interface. 1.8 V to 5.5 V Single-Supply or ±2.5 V Dual-Supply Operation. These parts are specified and guaranteed with 5 V ± 10%, 3 V ± 10% single-supply, and ± 2.5 V ±10% dual-supply rails. On Resistance of 4 W. Guaranteed Break-Before-Make Switching Action. 7 mm ×7 mm 48-Lead Chip Scale Package (LFCSP) or 48-Lead TQFP Package.

The ADG731/ADG725 are monolithic, CMOS, 32-channel/ dual 16-channel analog multiplexers with a serially controlled 3-wire interface. The ADG731 switches one of 32 inputs (S1–S32) to a common output, D. The ADG725 can be configured as a dual mux switching one of 16 inputs to one output, or a differential mux switching one of 16 inputs to a differential output.

These mulitplexers utilize a 3-wire serial interface that is compatible with SPI®, QSPI™, MICROWIRE™, and some DSP interface standards. On power-up, the Internal Shift Register contains all zeros and all switches are in the OFF state.

These multiplexers are designed on an enhanced submicron process that provides low power dissipation yet gives high switching speed with very low on resistance and leakage currents. They operate from a single supply of 1.8 V to 5.5 V or a ±2.5 V dual supply, making them ideally suited to a variety of applications. On resistance is in the region of a few ohms, is closely matched between switches, and is very flat over the full signal range.

These parts can operate equally well as either multiplexers or  demultiplexers and have an input signal range that extends to the supplies. In the OFF condition, signal levels up to the supplies are blocked. All channels exhibit break-before-make switching action, preventing momentary shorting when switching channels.

The ADG731 and ADG725 are serially controlled 32-channel, and dual/differential 16-channel multiplexers, respectively. They are available in either a 48-lead LFCSP or TQFP package.

Product Highlights
  • 3-Wire Serial Interface.
  • 1.8 V to 5.5 V Single-Supply or ±2.5 V Dual-Supply Operation. These parts are specified and guaranteed with 5 V ± 10%, 3 V ± 10% single-supply, and ± 2.5 V ±10% dual-supply rails.
  • On Resistance of 4 W.
  • Guaranteed Break-Before-Make Switching Action.
  • 7 mm ×7 mm 48-Lead Chip Scale Package (LFCSP) or
  • 48-Lead TQFP Package.
Features and Benefits
  • 3-Wire SPI Compatible Serial Interface
  • 1.8 V to 5.5 V Single Supply
  • ±2.5 V Dual-Supply Operation
  • 4 Ω On Resistance
  • 0.5 Ω On Resistance Flatness
  • 7 mm x 7 mm 48-Lead Chip Scale Package (LFCSP) or 48-Lead TQFP Package
  • Rail-to-Rail Operation
  • Power-On Reset
  • See data sheet for additional features
Switches & Multiplexers
Data Sheets
Documentnote
ADG725/ADG731: 16-/32-Channel, Serially Controlled 4 Ω 1.8 V to 5.5 V, ±2.5 V, Analog Multiplexers Data Sheet (Rev. B)PDF 356 kB
Application Notes
Documentnote
AN-1024: How to Calculate the Settling Time and Sampling Rate of a Multiplexer (Rev. 0)PDF 210 kB
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
ADG725BCPZ Production48 ld LFCSP (7x7x.85mm w/5.1mm Pad) OTH 260-40 to 85C6.725.44Y
ADG725BSUZ Production48 ld TQFP (7x7mm)OTH 250-40 to 85C6.725.44Y
Reference Materials
ADG725/ADG731: 16-/32-Channel, Serially Controlled 4 Ω 1.8 V to 5.5 V, ±2.5 V, Analog Multiplexers Data Sheet (Rev. B) adg725
AN-1024: 如何计算多路复用器的建立时间和采样速率 (Rev. 0) adg904
AN-1024: How to Calculate the Settling Time and Sampling Rate of a Multiplexer (Rev. 0) adg904
Switches and Multiplexers Product Selection Guide adg2128
CMOS Switches Offer High Performance in Low Power, Wideband Applications ad75019