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PL-2301 , USB TO USB BRIDGE CONTROLLER
PL2303 , PL-2303 USB to RS-232 Bridge Controller Product Datasheet
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PGA280AIPW
Zero Drift, HV Programmable Gain Amplifier
PGA280+15V -15V SPI Interface
SPI
PGA280
www.ti.com................................................................................................................................................ SBOS487A–JUNE 2009–REVISED SEPTEMBER 2009
Zerø-Drift, High-Voltage,
Programmable Gain INSTRUMENTATION AMPLIFIER
Checkfor Samples: PGA280
1FEATURES DESCRIPTION
23• WIDE INPUT RANGE: ±15.5Vat ±18V SUPPLY The PGA280 isa high-precision instrumentation
amplifier with digitally-controllable gain and signal
• BINARY GAIN STEPS: 128V/Vto 1/8V/Vintegrity test capability. This device offers low offset
• ADDITIONAL SCALING FACTOR: 1V/V and voltage, near-zero offset and gain drift, excellent
1⅜V/V linearity, and nearly no 1/f noise with superior
• LOW OFFSET VOLTAGE: 3μVatG= 128 common-mode and supply rejection to support
high-resolution precision measurement. The 36V
• NEAR-ZERO LONG-TERM DRIFT OF OFFSETsupply capability and wide, high-impedance input
VOLTAGE range comply with requirements for universal signal
• NEAR-ZERO GAIN DRIFT: 0.5ppm/°C measurement.
• EXCELLENT LINEARITY: 1.5ppm Special circuitry prevents inrush currents from
• EXCELLENT CMRR: 140dB multiplexer (MUX) switching.In addition, the input
• HIGH INPUT IMPEDANCE switch matrix enables easy reconfiguration and
system-level diagnostics—overload conditions are
• VERY LOW 1/f NOISE indicated.
• DIFFERENTIAL SIGNAL OUTPUTThe configurable general-purpose input/output
• OVERLOAD DETECTION (GPIO) offers several control and communication
• INPUT CONFIGURATION SWITCH MATRIX features. The SPI can be expandedto communicate
• WIRE BREAK TEST CURRENT with more devices, supporting isolation with only four
ISO couplers. The PGA280 is available in a
• EXPANDABLE SPI™ WITH CHECKSUM TSSOP-24 package andis specified from –40°Cto
• GENERAL-PURPOSE I/O PORT +105°C.
• TSSOP-24 PACKAGE
RELATED PRODUCTSAPPLICATIONS HIGH-PRECISION SIGNAL INSTRUMENTATION MULTIPLEXED DATA ACQUISITION• HIGH-VOLTAGE ANALOG INPUT AMPLIFIER ANALOG INPUT
