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OPA2356-EP

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SBOS955 – FEBRUARY 2019

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Copyright © 2019, Texas Instruments Incorporated

7.3 Feature Description

7.3.1 Operating Voltage

The OPA2356-EP is specified over a power-supply range of 2.7 V to 5.5 V (±1.35 V to ±2.75 V). However, the

supply voltage may range from 2.5 V to 5.5 V (±1.25 V to ±2.75 V). Supply voltages higher than 7.5 V (absolute

maximum) can permanently damage the amplifier.

Parameters that vary significantly over supply voltage or temperature are shown in the Typical Characteristics

section of this data sheet.

7.3.2 Output Drive

The output stage of the OPA2356-EP is capable of driving a standard back-terminated 75-

Ω video cable. A back-

terminated transmission line does not exhibit a capacitive load to its driver. A properly back-terminated 75-

Ω

cable does not appear as capacitance; the cable presents only a 150-

Ω resistive load to the OPA2356-EP

output.

The output stage can supply high short-circuit current (typically over 200 mA). Therefore, an on-chip thermal

shutdown circuit is provided to protect the OPA2356-EP from dangerously high junction temperatures. At 160°C,

the protection circuit shuts down the amplifier. Normal operation resumes when the junction temperature cools to

below 140°C.

NOTE

TI does not recommend running a continuous dc current in excess of ±60 mA. See

Figure 20 in the Typical Characteristics section.

7.4 Device Functional Modes

The OPA2356-EP is powered on when the supply is connected. The device can operate as a single-supply

operational amplifier or dual-supply amplifier depending on the application. The device can also be used with

asymmetrical supplies as long as the differential voltage (V– to V+) is at least 1.8 V and no greater than 5.5 V

(for example, V– is set to –3.5 V and V+ is set to 1.5 V).