ADG1414 Datasheet, PDF (1/20 Pages) Analog Devices – 9.5 Ω RON ±15 V/+12 V/±5 V iCMOS Serially-Controlled Octal SPST Switches

9.5 Ω R_ON ±15 V/+12 V/±5 V iCMOS
Serially-Controlled Octal SPST Switches
ADG1414
FEATURES
SPI interface
Supports daisy-chain mode
9.5 Ω on resistance @ 25°C
1.6 Ω on-resistance flatness
Fully specified at ±15 V, +12 V, ±5 V
3 V logic-compatible inputs
Rail-to-rail operation
24-lead TSSOP and 24-lead 4 mm × 4 mm LFCSP
APPLICATIONS
Automatic test equipment
Data acquisition systems
Battery-powered systems
Sample-and-hold systems
Audio signal routing
Video signal routing
Communication systems
GENERAL DESCRIPTION
The ADG1414 is a monolithic complementary metal-oxide
semiconductor (CMOS) device containing eight independently
selectable switches designed on an industrial CMOS (iCMOS®)
process. iCMOS is a modular manufacturing process combining
high voltage CMOS and bipolar technologies. iCMOS components
can tolerate high supply voltages while providing increased perfor-
mance, dramatically lower power consumption, and reduce the
package size.
The ADG1414 is a set of octal SPST (single-pole, single-throw)
switches controlled via a 3-wire serial interface. On resistance is
closely matched between switches and is very flat over the full
signal range. Each switch conducts equally well in both direc-
tions and the input signal range extends to the supplies.
FUNCTIONAL BLOCK DIAGRAM
ADG1414
S1
D1
S2
D2
S3
D3
S4
D4
S5
D5
S6
D6
S7
D7
S8
D8
INPUT SHIFT
REGISTER
SDO
SCLK DIN SYNC RESET/V_L
Figure 1.
Data is written to these devices in the form of eight bits; each
bit corresponds to one channel.
The ADG1414 utilizes a versatile 3-wire serial interface that
operates at clock rates of up to 50 MHz and is compatible with
standard SPI, QSPI™, MICROWIRE™, and DSP interface
standards. The output of the shift register, SDO, enables a
number of these parts to be daisy chained.
On power-up, all switches are in the off condition, and the
internal registers contain all zeros.
PRODUCT HIGHLIGHTS
1. 50 MHz serial interface.
2. 9.5 Ω on resistance.
3. 1.6 Ω on-resistance flatness.
4. 24-lead TSSOP and 4 mm × 4 mm LFCSP packages.
Rev. 0
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