PGA400-EP Datasheet, PDF (1/99 Pages) Texas Instruments – PRESSURE SENSOR SIGNAL CONDITIONER

PGA400-EP
SLDS195B – MAY 2013 – REVISED FEBRUARY 2014
PRESSURE SENSOR SIGNAL CONDITIONER
1 DEVICE OVERVIEW
1.1 FEATURES
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• Analog Features
– Analog Front-End for
Resistive Bridge Sensors
– Self-Oscillating Demodulator for
Capacitive Sensors
– On-Chip Temperature Sensor
– Programmable Gain
– 16-Bit, 1MHz Sigma-Delta Analog-to-Digital
Converter for Signal Channel
– 10-Bit Sigma-Delta Analog-to-Digital
Converter for Temperature Channel
– Two 12–Bit DAC Outputs
• Digital Features
– Microcontroller Core
• 10 MHz 8051 WARP Core
– 2 Clocks Per Instruction Cycle
• On–Chip Oscillator
– Memory
• 8 KB of OTP Memory
• 89 Bytes of EEPROM
• 256 Bytes Data SRAM
• Peripheral Features
– Serial Peripheral Interface (SPI™)
– Inter-Integrated Circuit (I²C™)
– One-Wire Interface
– Two Input Capture Ports
– Two Output Compare Ports
– Software Watchdog Timer
– Oscillator Watchdog
– Power Management Control
– Analog Low-Voltage Detect
• General Features
– Power Supply: 4.5 V to 5.5 V Operational, –5.5
V to 16 V Abs Max
– PVQFN-36 package
1.2 APPLICATIONS
• Pressure Sensor Signal Conditioning
• Level Sensor Signal Conditioning
• Humidity Sensor Signal Conditioning
1.3 SUPPORTS INDUSTRIAL SENSING APPLICATIONS
• Controlled Baseline
• Extended Product Life Cycle
• One Assembly and Test Site
• Extended Product-Change Notification
• One Fabrication Site
• Product Traceability
DEVICE OVERVIEW
The PGA400-EP is an interface device for piezoresistive, strain gauge and capacitive sense elements.
The device incorporates the analog front end that directly connects to the sense element and has voltage
regulators and oscillator. The device also includes sigma-delta analog-to-digital converter, 8051 WARP
core microprocessor and OTP memory. Sensor compensation algorithms can be implemented in software.
The PGA400-EP also includes 2 DAC outputs.
1.1 ORDERING INFORMATION⁽¹⁾
T_A
–40°C to 125°C
PACKAGE ⁽²⁾
PVQFN (RHH)
ORDERABLE PART NUMBER
PGA400QRHHTEP
TOP-SIDE MARKING
PGA400QRHH-EP
VID NUMBER
V62/13619-01XE
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com.
(2) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.