OP4177ARUZ-REEL IC

Technical Specifications of OP4177ARUZ-REEL

Datasheet	OP4177ARUZ-REEL datasheet
Category	Integrated Circuits (ICs)
Family	Linear – Amplifiers – Instrumentation, OP Amps, Buffer Amps
Manufacturer	Analog Devices Inc.
Series	–
Packaging	Tape & Reel (TR)
Part Status	Active
Amplifier Type	General Purpose
Number of Circuits	4
Output Type	–
Slew Rate	0.7 V/μs
Gain Bandwidth Product	1.3MHz
-3db Bandwidth	–
Current – Input Bias	500pA
Voltage – Input Offset	15μV
Current – Supply	400μA
Current – Output / Channel	10mA
Voltage – Supply, Single/Dual (±)	5 V ~ 36 V, ±2.5 V ~ 18 V
Operating Temperature	-40°C ~ 125°C
Mounting Type	Surface Mount
Package / Case	14-TSSOP (0.173″, 4.40mm Width)
Supplier Device Package	14-TSSOP

OP4177ARUZ-REEL General Description

The OPx177 family includes high-precision single, dual, and quad amplifiers, all of which have minimal offset voltage and drift, input bias current, noise, power consumption, and noise. These amplifiers can be found in single, dual, or four-channel variations. Capacitive loads over 1000 pF do not affect the output stability, even without external compensation. Supply current is less than 500 A per amplifier at 30 V. The inputs are shielded by a series of 500-ohm resistors inside the device, allowing for signal levels to be several volts higher than either supply without inducing a phase shift. In contrast to earlier high-voltage amplifiers with very low offset voltages, the OP1177 and OP2177 (dual) are offered in miniature 8-lead surface-mount MSOP and 8-lead narrow SOIC packages, respectively. When compared to previous high-voltage amplifiers, these are significantly more compact.

The OP4177 (quad) is offered in a 14-lead narrow SOIC package in addition to the TSSOP. In addition, the SOIC package’s performance requirements are also met by the MSOP and TSSOP’s performance requirements. MSOP and TSSOP are only available on tape and reel. Surface-mount packaged high-precision amplifiers don’t have better temperature specifications than the OPx177 family. Every single version has been rigorously tested in extreme environments, with temperatures ranging from -40 degrees Celsius to +125 degrees Celsius. Among the many uses for these amplifiers are the precise measurement of diode power, the adjustment of voltage and current, and the detection of levels in optical and wireless transmission systems. Signal conditioning for thermocouples, RTDs, strain bridges, other types of sensors, line-powered and portable instrumentation and controls, and precision filters are some other examples.

OP4177ARUZ-REEL Features

• Shallow offset voltage drift: 0.7 μV/°C maximum
• Low input bias current: 2 nA maximum
• Low noise: 8 nV/√Hz typical
• Unity-gain stable
• No phase reversal
• Inputs internally protected beyond the supply voltage

Functional Description

Analog Devices, Inc.’s OPx177 series is the fourth generation of their ubiquitous OP07 amplifier family. With its low noise, low offset voltage, and low input bias current, the OPx177 is a high-precision operational amplifier. Moreover, the input bias current is extremely low. In contrast to JFET amplifiers, the downward bias and offset currents are less affected by environmental temperatures of up to 125 degrees Celsius. Analog Devices has used its in-house linear design expertise and high-performance proprietary process technology to create a high-voltage amplifier that outperforms the OP07, OP77, and OP177. The MSOP 8-lead package makes this amplifier extremely portable.

The OPx177, despite its diminutive size, boasts several desirable characteristics, including low wideband noise, a wide input and output voltage range, low input bias current, and complete freedom from phase inversion. These are merely a few of the many advantages that this tool provides. The OPx177 is identical to other similar devices in that it features a wide operating temperature range and is available in a plastic surface-mount package. As system temperatures rise due to smaller PCB sizes and overall system sizes, this is becoming an increasingly important factor to consider. Power consumption is reduced by a factor of four compared to the OP177, while bandwidth and slew rate are each improved by a factor of two.

Warmup drift errors are significantly mitigated by the combination of low power dissipation and highly stable performance versus temperature. When subjected to heavy loads, the open-loop gain linearity is superior to competing parts like the OPA277. This improves dc accuracy and reduces distortion in circuits with high closed-loop gains. Each input has its circuitry to prevent damage from input voltages that are too high, and this protection works regardless of which supply rail is being used. Maximal performance can be attained by adhering to the recommended circuit and PCB guidelines for any high-performance amplifier. To help you make the most of your OPx177 in many settings, we’ve included some practical tips and tricks below.

● Output Phase Reversal

When someone says “phase reversal,” they mean that the polarity of the amplifier’s transfer function has changed. Many operational amplifiers display phase reversal when an input voltage is applied higher than the maximum common-mode voltage. This could cause permanent damage to the amplifier in extreme cases. Due to feedback loops, the system may freeze or be damaged. The OPx177 has no issues with phase reversal, even when the input voltage exceeds the supplies.

● Settling Time

The settling time of an amplifier is defined as the amount of time it takes for the amplifier’s output to reach and stabilize within a predetermined percentage of its final value following the application of an input pulse. Most amplifiers function as buffers for either analog-to-digital converter (ADC) inputs or digital-to-analog converter (DAC) outputs, making this property crucial in measurement and control circuits. It is possible to reduce the amount of time an amplifier circuit needs to settle by bypassing the power supplies and using carefully chosen components.

Metal film resistors are preferable to wire-wound resistors because they have less stray capacitance and inductance. Capacitors should be made of polystyrene or polycarbonate to minimize dielectric absorption. Limiting capacitance and inductance requires keeping power cords as short as possible. About 45 microseconds are needed for the OPx177 to settle to 0.01% (1 millivolt) after an input step of 10 V is applied when it is set up in a noninverting unity gain configuration.

● Overload Recovery Time

In the context of amplifiers, “overload recovery” refers to the amount of time it takes for the output voltage of an amplifier to return to its linear response region after going through a saturated condition. One common example is when the output voltage needed by the circuit’s transfer function is higher than the amplifier’s maximum output voltage. This is a common scenario.

When an input voltage of 10 V is applied to an amplifier with a closed-loop gain of 2, the required output voltage is 20 V. Operating at a supply voltage of less than 15 volts is outside the range of the OPx177’s output voltage, which causes the output to become saturated. Recovery time is essential in a wide variety of applications, particularly in which an operational amplifier is required to amplify weak signals in the presence of significant transient voltages.

Conclusion

The Analog Devices OP4177ARUZ-REEL op amp is a high-gain, general-purpose device with infinite open-loop gain, high input impedance, and low output impedance. It operates from a dual supply voltage of 3 V to 5 V to 9 V to 12 V, with a minimum of 2.5 V and a maximum of 15 V. The operating temperature of this operational amplifier is between -40 and 125 degrees Celsius. This apparatus uses dual power sources. There are a total of four channels on each chip.

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