ADG3245:  2.5 V/3.3 V, 8 Bit, 2 Port Level Translator, Bus Switch

The ADG3245 is a 2.5 V or 3.3 V 8 bit, 2 port digital switch. It is designed on a low voltage CMOS process which provides low power dissipation yet gives high switching speed and very low on ...More

ADG3245:  2.5 V/3.3 V, 8 Bit, 2 Port Level Translator, Bus Switch

Product Description

The ADG3245 is a 2.5 V or 3.3 V 8 bit, 2 port digital switch. It is designed on a low voltage CMOS process which provides low power dissipation yet gives high switching speed and very low on resistance allowing inputs to be connected to the outputs without additional propagation delay or generating additional ground bounce noise.

The switches are enabled by means of the Bus Enable, () input signal. These digital switches allow bi-directional signals to be switched when ON. In the OFF condition, signal levels up to the supplies are blocked. This device is ideal for applications requiring level translation. When operated from a 3.3 V supply, level translation from 3.3V inputs to 2.5V outputs is allowed. Similarly, if the device is operated from a 2.5 V supply and 2.5 V inputs are applied, the device will translate the outputs to 1.8 V. In addition to this, a level translating select pin ( ) is included. When is low, VCC is reduced internally allowing for level translation between 3.3V inputs and 1.8V outputs. This makes the device suited to applications requiring level translation between different supplies, such as converter to DSP interfacing.

Features

  • 175 ps Propagation Delay through the switch
  • 3.5 Ω Switch Connection between Ports
  • 2.5 V/3.3 V Supply Operation
  • Selectable Level Shifting/Translation
  • Level Translation
    - 3.3 V to 2.5 V
    - 3.3 V to 1.8 V
    - 2.5 V to 1.8 V
  • 20 Lead TSSOP & CSP Packages

Diagrams

ADG3245 Diagram
Functional Block Diagram for ADG3245

Specifications

Data Rate (typ) 1244Mbps
t Prop Delay (typ) 225ps
Bus Enable Time (typ) 3.2ns
VCC 1 (V) 2.5 - 1.8,3.3 - 1.8,3.3 - 2.5,Single(+2.3 to +3.6)
ICC2 (Max) n/a
Pkg CSP,TSSOP
Temp Range (°C) -40 to 85
Vcc 2 (V) n/a
Bus Width 8

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ADG3123 100kbps 80ns n/a Single(+25 to +30) -5V to -10V 151µA 1µA TSSOP 20 -40 to 85 8-Channel, CMOS-Logic-to-High-Voltage Level Translator $2.33
ADG3231 30Mbps 4ns n/a Single(+1.65 to +3.6) 1.65V - 3.6V 2µA 2µA SOT-23 6 -40 to 85 Single-Channel Level Translator with Bi-directional 1.65 V to 3.6 V Level Shift $0.43
ADG3232 30Mbps 3.5ns 4ns Single(+1.65 to +3.6) 1.65V - 3.6V 2µA 2µA SOT-23 8 -40 to 85 2:1 Multiplexer Level Translator with Bi-directional 1.65 V to 3.6 V Level Shift $0.53
ADG3233 30Mbps 3.5ns 4ns Single(+1.65 to +3.6) 1.65V - 3.6V 2µA 2µA MSOP, SOT-23 8 -40 to 85 Low Voltage 1.65 V to 3.6 V, (Up/Down) Logic Level Translation, Bypass Switch $0.57
ADG3300 50Mbps 5ns 1µs 1.15 - 5.5 1.65V - 5.5V 5µA 5µA TSSOP 20 -40 to 85 Low Voltage, 1.15 V to 5.5 V, 8-Channel Bidirectional Logic Level Translator $1.62
ADG3301 50Mbps 6ns 1µs 1.15 - 5.5 1.65V - 5.5V 1µA 1µA SC70 6 -40 to 85 Low Voltage 1.15 V to 5.5 V, Single-Channel Bidirectional Logic Level Translator $0.47
ADG3308 60Mbps 5ns 1µs 1.15 - 5.5 1.65V - 5.5V 1µA 1µA CSP, TSSOP 20 -40 to 85 Low Voltage 1.15 V to 5.5 V, 8-Channel, Bidirectional, Logic Level Translator $1.62
ADG3304 60Mbps 5ns 1µs 1.15 - 5.5 1.65V - 5.5V 1µA 1µA CSP, TSSOP 14 -40 to 85 Low Voltage 1.15 V to 5.5 V, 4 Channel, Bidirectional, Logic Level Translator $0.97
ADG3257 933Mbps 100ps 5ns 5-3 n/a 1µA n/a QSOP 16 -40 to 85 High Speed, 3.3 V/5 V Quad 2:1 Mux/Demux (4-Bit, 1 of 2) Bus Switch $0.60
ADG3245 1244Mbps 225ps 3.2ns 2.5 - 1.8, 3.3 - 1.8, 3.3 - 2.5, Single(+2.3 to +3.6) n/a 1µA n/a CSP, TSSOP 20 -40 to 85 2.5 V/3.3 V, 8 Bit, 2 Port Level Translator, Bus Switch $0.72
ADG3246 1244Mbps 225ps 3.2ns 2.5 - 1.8, 3.3 - 1.8, 3.3 - 2.5 n/a 1µA n/a CSP, TSSOP 24 -40 to 85 2.5 V/3.3 V, 10 Bit, 2 Port Level Translator, Bus Switch $0.75
ADG3247 1244Mbps 225ps 3.2ns 2.5 - 1.8, 3.3 - 1.8, 3.3 - 2.5 n/a 1µA n/a CSP, TSSOP 40 -40 to 85 2.5 V/3.3 V, 16 Bit (Dual 8 Bit) , 2 Port Level Translator, Bus Switch $0.99
ADG3248 1.244Gbps 225ps n/a 2.5 - 1.8, 3.3 - 2.5 n/a 1µA n/a SC70 6 -40 to 85 2.5 V/3.3 V, 2:1 Multiplexer/Demultiplexer Bus Switch in SC70 $0.57
ADG3249 1.244Gbps 225ps n/a 2.5 - 1.8, 3.3 - 1.8, 3.3 - 2.5 n/a 0.2mA n/a SOT-23 8