cs5451 ETC-unknow, cs5451 Datasheet - Page 12

• Manufacturer Part Number: cs5451
• Description: Channel Delta Sigma Analog Digital Converter
• Manufacturer: ETC-unknow

Measurement and Reference Input
IIN(1-3)+, IIN(1-3)- - Differential Current Inputs
VIN(1-3)+, VIN(1-3)- - Differential Voltage Inputs
VREFOUT - Voltage Reference Output
VREFIN - Voltage Reference Input
Power Supply Connections
VA+ - Positive Analog Supply
VA- - Negative Analog Supply
AGND - Analog Ground
VD+ - Positive Digital Supply
DGND - Digital Ground
CPD - Charge Pump Drive
12
Differential analog input pins for current channels.
Differential analog input pins for voltage channels.
The on-chip voltage reference is output from this pin. The voltage reference has a nominal magnitude of
1.2 V and is referenced to the AGND pin on the converter.
The voltage input to this pin establishes the voltage reference for the on-chip modulator.
The positive analog supply is nominally +3 V ±10% relative to AGND.
The negative analog supply is nominally -2 V ±10% relative to AGND.
The analog ground pin for input signals.
The positive digital supply is nominally +3 V ±10% relative to DGND.
The digital ground is typically at the same level as AGND.
This output pin drives the external charge pump circuitry to create a negative supply voltage.
CS5451
DS458PP4