TLV825 datasheet(21/47 Pages) TI2

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6.3.5 Overload Recovery

Overload recovery is defined as the time required for the operational amplifier output to recover from a saturated

state to a linear state. The output stage of the operational amplifier enters a saturation region when the output

voltage exceeds the rated operating voltage, because of the high input voltage or high gain. After one of the

outputs enters the saturation region, the output stage requires additional time to return to the linear operating

state which is referred to as overload recovery time. After the output stage returns to linear operating state, the

amplifier begins to slew at the specified slew rate. Therefore, the propagation delay (in case of an overload

condition) is the sum of the overload recovery time and the slew time. The overload recovery time for the

TLVx825 family is designed to be approximately 1.5μs typical.

6.3.6 Phase-Reversal Protection

The TLVx825 includes internal phase-reversal protection. Some op amps exhibit a phase reversal when the

input is driven beyond the linear common-mode range. This condition is most often encountered in noninverting

and unity gain circuits when the input is driven beyond the specified common-mode voltage range, causing

the output to reverse into the opposite rail. The TLVx825 input prevents phase reversal with excessive common-

mode voltage. Instead, the output limits into the appropriate rail. Figure 6-2 shows this performance.

Figure 6-2. No Phase Reversal

6.3.7 Chopping Transients

Zero-drift amplifiers such as the TLVx825 use a switching architecture on the inputs to correct for the intrinsic

offset and drift of the amplifier. Charge injection from the integrated switches on the inputs can introduce short

transients in the input bias current of the amplifier. The extremely short duration of these pulses prevents the

pulses from amplifying; however, the pulses can be coupled to the output of the amplifier through the feedback

network. Use low value feedback and input resistors to minimize the input transient effects at the output of

the amplifier. Use a low-pass filter, such as an RC network, to minimize any additional noise attributed to the

transients. The chopping frequency of the TLVx825 is typically 200kHz.

6.3.8 EMI Rejection

The TLVx825 uses integrated electromagnetic interference (EMI) filtering to reduce the effects of EMI

interference from sources such as wireless communications and densely-populated boards with a mix of analog

signal chain and digital components. EMI immunity can be improved with circuit design techniques; the TLVx825

benefits from these design improvements.

High-frequency signals conducted or radiated to any pin of the operational amplifier can result in adverse effects,

as there is insufficient amplifier loop gain to correct for signals with spectral content outside the bandwidth.

Conducted or radiated EMI on inputs, power supply, or output can result in unexpected dc offsets, transient

voltages, or other unknown behavior. Take care to properly shield and isolate sensitive analog nodes from noisy

radio signals and digital clocks and interfaces.

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TLV825, TLV2825, TLV4825

SLVSLE3B – MAY 2026 – REVISED SEPTEMBER 2026

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TLV825 Datasheet(PDF) 21 Page - Texas Instruments