32bit High Precision Ad Conversion Circuit for Accelerometer Signal RS422 Synchronous Output

The high-precision AD conversion circuit is used to convert the current signal output by the accelerometer into a digital signal. It is mainly

The functions include:

1. Synchronization signal receiving function: Receiving differential synchronization signal input and latching AD values to achieve synchronous acquisition and synchronous communication;

2. Serial protocol communication function: Triggered by a synchronization signal, it periodically sends current acquisition values using the standard RS422 protocol.

3. Internal and external synchronous switching and upload frequency adjustment function: It can be adjusted to internal synchronous upload or external synchronous upload of the acquisition circuit through commands, and the upload frequency can be modified through commands.

Part No, :
AD-A
Order(MOQ) :
1

Product Description

Product Series and Parameters

Index	Test conditions	Min	Typical	Max	Unit
Measuring range FS1	Full temperature range	-50	-	50	mA
Zero-position temperature coefficient 2	I=0mA, full temperature range	-2	-	2	nA/℃
Zero position stability3		-2		2	nA
Scale factor Temperature coefficient (absolute value)4	I=±1mA, full temperature range	-	-	3	ppm/℃
Scale factor	I=±1mA, at room temperature	-	-	10	ppm
Stability (1σ)5
Comprehensive nonlinearity 6	1mA≤\|I\|≤FS, full temperature range	-	-	15	ppm
Start Time				20	s
Operating temperature range TS		-40~+70			℃

Production process

Product dimension

AD-A

Application Scenarios

AD board application

The A/D (Analog-to-Digital) board is built for reliable data acquisition and precision measurement in medium-to-high accuracy sensing systems—well-suited for IMU/INS sensor front-ends, vehicle/rail motion monitoring, industrial vibration/impact diagnostics, and laboratory instrumentation. It delivers low-noise, high-resolution conversion of analog sensor signals into stable digital data, with flexible sampling configurations, strong anti-interference performance, robust temperature stability, compact board-level design, and easy integration/installation into embedded controllers and test platforms.

UAV

Robots

Autonomous Driving

FAQ

Q1: What is this product? What is its main purpose?

A: AD-A is a high-precision AD conversion circuit used to convert the current signal output from an accelerometer into a digital signal, and to output and synchronously acquire the data via RS422.

Q2: Which sensors/signals are compatible?

A: It is compatible with three-axis current output accelerometers (IX/IY/IZ three-channel current input), and also supports accelerometer PT1000 temperature sensor input.

Q3:What is the input measurement range?

A: The input current range over the full temperature range is -50 mA to +50 mA.

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