6.4 Device Functional Modes

The AMC0106M25 operates in one of the following states:

• OFF-state: The low-side of the device (AVDD) is not supplied. The device is not responsive and DOUT is in

high-impedance state. Internally, DOUT is clamped to DVDD and DGND by ESD protection diodes.

• Missing high-side supply: DVDD is supplied within the Recommended Operating Conditions but VAVDD is

below the AVDDUV threshold. The device outputs a constant bitstream of logic 0's as described in the Output

Behavior in Case of a Missing High-Side Supply section.

• Common-mode input violation: AVDD and DVDD are supplied within the respective recommended operating

conditions. However, the common-mode input voltage VCM = (VINP + VINN) / 2 is outside the recommended

operating conditions. The device outputs invalid data, independent of the differential input voltage VIN.

• Differential input voltage range violation (full-scale input): VAVDD, VDVDD, and VCM are within the

recommended operating conditions. However, the differential input voltage VIN = (VINP – VINN) exceeds the

clipping voltage (|VIN| > |VClipping|). The device outputs a fixed pattern as described in the Output Behavior in

Case of a Missing High-Side Supply section.

• Normal operation: VAVDD, VDVDD, VCM, and VIN are within the recommended operating conditions. The device

outputs a digital bitstream as explained in the Digital Output section.

Table 6-1. Device Operational Modes

OPERATING

CONDITION

VDVDD

VAVDD

VCM

(VINP + VINN) / 2

VIN

(VINP – VINN)

DEVICE

RESPONSE

OFF

VDVDD < DVDDUV

Don't care

Don't care

Don't care

DOUT is in Hi-Z state. DOUT is

clamped to DVDD and DGND by

ESD protection diodes.

Missing high-side

supply

Valid(1)

VAVDD < AVDDUV

Don't care

Don't care

DOUT is constantly low

Common-mode input

voltage range violation

Valid(1)

Valid(1)

VCM < VCM, MIN or VCM

> VCM, MAX

Don't care

Device outputs invalid data

Differential input

voltage range violation

Valid(1)

Valid(1)

Valid(1)

|VIN| > VClipping

Device outputs a single 1 or a

single 0 every 128th clock cycle

Normal operation

Valid(1)

Valid(1)

Valid(1)

Valid(1)

Normal Operation

(1)

Valid means within recommended operating conditions.

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AMC0106M25

SBASAX1A – AUGUST 2024 – REVISED JULY 2025

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