My Inquiry
My Account
Analog Devices Inc. OP293ESZ-REEL7
- Part No.:
- OP293ESZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OP293ESZ-REEL7.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:243
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
OP293ESZ-REEL7 from Analog Devices is a dual-channel, micropower, precision operational amplifier designed for single-supply operation down to +1.7 V. It delivers 100 µV maximum offset voltage, 15 µA per amplifier supply current, and rail-to-rail output swing within 600 mV of the positive rail - enabling high-accuracy signal conditioning in battery-powered medical sensors and portable instrumentation.
For engineers reviewing the OP293ESZ-REEL7 datasheet, OP293ESZ-REEL7 pinout, OP293ESZ-REEL7 application, or OP293ESZ-REEL7 equivalent, this page provides verified electrical specifications, SOIC_N package details, real-world use cases in low-voltage transducer interfaces, and validated alternative parts with documented functional differences.
Technical Context
The OP293ESZ-REEL7 employs a PNP input stage that enables true ground-sensing capability (input common-mode range includes 0 V) and eliminates phase reversal on inputs driven below ground - a key differentiator from the OP193. Its totem-pole NPN output stage sources and sinks ±8 mA while maintaining <5 mV low-level output saturation voltage.
It operates across −40°C to +125°C with guaranteed 200 µV max offset voltage over temperature (F grade), 1.25 µV/°C typical drift, and 35 kHz gain-bandwidth product at ±15 V - scaling to 25 kHz at +3 V - making it suitable for stable, low-power analog front-ends where supply headroom and thermal drift are critical constraints.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +1.7 V to ±18 V - supports direct integration into lithium coin-cell (3 V) and multi-rail industrial systems without level-shifting. |
| Input Offset Voltage | 100 µV max (25°C), 200 µV max (−40°C to +125°C) - enables sub-millivolt accuracy in strain gage bridges and thermistor amplifiers. |
| Supply Current per Amplifier | 14.5 µA typ at +3 V - allows >10-year battery life in continuous-use portable medical devices drawing <30 µA total. |
| Output Swing (Low) | 280 mV above V– at −1 mA load - ensures reliable logic-level interfacing with microcontrollers operating at 1.8 V or 3.3 V. |
| Open-Loop Gain | 200 V/mV min at +3 V, RL = 100 kΩ - maintains ≥60 dB loop gain for stable 10× closed-loop gain configurations at low supply. |
| CMRR | 92 dB min (0.1 V ≤ VCM ≤ 4 V, −40°C to +125°C) - rejects common-mode noise in noisy industrial sensor environments. |
| Gain Bandwidth Product | 25 kHz at +3 V - sufficient for DC–10 kHz signal paths in ECG front-ends and digital scale load-cell readouts. |
Pinout & Package
OP293ESZ-REEL7 is housed in an 8-lead SOIC_N (S suffix) surface-mount package with θJA = 158°C/W. Pin 1 is OUT A; Pin 2 is –IN A; Pin 3 is +IN A; Pin 4 is V–; Pin 5 is +IN B; Pin 6 is –IN B; Pin 7 is OUT B; Pin 8 is V+.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Drives external load directly; capable of sourcing/sinking ±8 mA with <5 mV saturation voltage near V–. |
| 2 (–IN A) | Inverting input A | PNP-based input node; accepts signals down to V– (ground in single-supply); protected by series resistors against ±20 V overvoltage. |
| 3 (+IN A) | Non-inverting input A | Same PNP structure as –IN A; enables true single-supply operation with common-mode range including 0 V. |
| 4 (V–) | Negative supply rail | Reference for both inputs and outputs; tied to ground in single-supply configurations; supports dual-supply operation down to ±0.85 V. |
| 5 (+IN B) | Non-inverting input B | Dual-channel symmetry: identical electrical characteristics to +IN A; enables differential or independent channel use. |
| 6 (–IN B) | Inverting input B | Matches –IN A performance; no internal connection to Channel A - fully isolated dual op-amp architecture. |
| 7 (OUT B) | Amplifier B output | Electrically identical to OUT A; supports independent gain stages or buffered reference generation. |
| 8 (V+) | Positive supply rail | Accepts up to +18 V or ±18 V; PSRR ≥94 dB ensures immunity to supply ripple in mixed-signal PCB layouts. |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal on input overdrive | Q7/Q8 lateral PNP protection circuit prevents output inversion when inputs drop to −5 V below V– at 25°C - eliminates need for external clamping diodes in most portable designs. |
| Rail-to-rail output swing | Swings to within 600 mV of V+ and to <5 mV above V– at −1 mA - enables full dynamic range utilization in 3.3 V or lower microcontroller ADC interfaces. |
| Micropower operation | 14.5 µA per amplifier at +3 V - reduces system standby power by >5× versus standard precision op-amps, extending battery life in wearable sensors. |
| Extended temperature range | Specified from −40°C to +125°C with guaranteed 200 µV max offset - supports automotive cabin modules and industrial process controllers without derating. |
| High open-loop gain stability | 200 V/mV minimum at +3 V, RL = 100 kΩ - ensures predictable closed-loop gain accuracy even under varying load and temperature conditions. |
Applications
| Digital Scale Load-Cell Interface | Portable ECG Front-End |
|---|---|
Use Scenario: Amplifying mV-level Wheatstone bridge output from strain-gauge load cells in handheld scales. IC Role / Device Role / Timing Role: Precision instrumentation amplifier core (configured as difference amplifier) with ground-referenced inputs and rail-to-rail output driving 16-bit sigma-delta ADC. Use Value: 100 µV offset enables <0.01% full-scale error; 15 µA quiescent current permits >5-year battery life on two AA cells. |
Use Scenario: Conditioning low-amplitude, high-impedance biopotential signals from dry electrodes in battery-powered ECG monitors. IC Role / Device Role / Timing Role: First-stage gain amplifier with DC-coupled input, driven from electrode bias network; second channel buffers reference voltage. Use Value: Input common-mode range including ground eliminates need for AC coupling; 25 kHz GBW supports 100 Hz bandwidth with margin. |
| Temperature Transducer Amplifier | Lithium Battery-Powered Instrumentation |
Use Scenario: Linearizing and amplifying output of platinum RTD or thermistor in HVAC sensor nodes. IC Role / Device Role / Timing Role: Constant-current excitation source follower + transducer voltage amplifier; dual-channel supports 4-wire RTD configuration. Use Value: 1.25 µV/°C drift ensures <0.1°C measurement error over −20°C to +85°C ambient; 3.3 V operation matches MCU supply. |
Use Scenario: Signal conditioning in handheld multimeters, gas detectors, and environmental loggers powered by CR2032 or AAA batteries. IC Role / Device Role / Timing Role: Dual-channel analog front-end: one amp for sensor gain, one for reference buffering or comparator hysteresis. Use Value: +1.7 V minimum supply allows operation until battery drops below 2.0 V; 14.5 µA/channel enables >2000-hour runtime on 200 mAh cell. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision micropower operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP293DR | Same die, SOIC-8 package without tape-and-reel; no moisture sensitivity level (MSL) rating; not qualified for automated SMT placement. | Suitable for prototyping or low-volume hand-soldered assemblies; unsuitable for high-reliability production lines requiring MSL-3 compliance. | Select OP293ESZ-REEL7 for volume manufacturing with reflow compatibility and traceable lot control. |
| AD8603ARZ | Lower offset (30 µV max), higher supply current (45 µA), wider GBW (250 kHz); CMOS input vs. PNP - no ground-sensing capability. | Preferred in low-noise, higher-speed applications where input bias current <1 pA matters more than ground-referenced input range. | Choose AD8603ARZ only if system requires sub-50 µV offset and can tolerate loss of true 0-V input common-mode range. |
Compared with OP293DR, OP293ESZ-REEL7 offers MSL-3 packaging and reel delivery for SMT line integration; compared with AD8603ARZ, it trades speed and offset for guaranteed ground-sensing operation and 3× lower quiescent current - critical for long-life battery systems.
Availability
OP293ESZ-REEL7 is available at Aetrix Electronics and suitable for portable medical equipment, battery-powered instrumentation, and temperature transducer amplifier circuits requiring stable component supply, extended temperature qualification, and long-term lifecycle support.
Supply support for OP293ESZ-REEL7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The OP293ESZ-REEL7 belongs to Analog Devices' precision micropower op-amp family, engineered specifically for ultra-low-power, ground-sensing signal conditioning in single-supply battery-operated systems - emphasizing longevity, accuracy, and robustness over wide temperature ranges.
FAQ
What is the maximum operating temperature for OP293ESZ-REEL7?
The OP293ESZ-REEL7 is specified for continuous operation from −40°C to +125°C. This extended temperature range is guaranteed across all key parameters including input offset voltage (200 µV max), CMRR (92 dB min), and supply current (22 µA max), making it suitable for under-hood automotive and industrial control applications where thermal stress is a primary reliability concern. The device's SOIC_N package has a θJA of 158°C/W, supporting adequate thermal dissipation in standard PCB layouts.
Does OP293ESZ-REEL7 support true single-supply operation with inputs at ground?
Yes, OP293ESZ-REEL7 features a PNP input stage that guarantees input common-mode voltage range including V– (0 V in single-supply mode). This allows direct connection of grounded sensors such as thermistors or bridge transducers without level-shifting circuitry. Unlike CMOS-input op-amps, the OP293ESZ-REEL7 maintains specified offset, bias current, and CMRR at 0 V input - confirmed in Table 2 (VCM = 0 V to 4 V at +5 V supply) and Functional Description section.
What is the output short-circuit current limit for OP293ESZ-REEL7?
The OP293ESZ-REEL7 has a symmetrical short-circuit current limit of ±8 mA, as specified in Table 2 under "Short-Circuit Current" at +5 V supply. This value is consistent across temperature (−40°C to +125°C) and reflects the design of its totem-pole NPN output stage. The device tolerates indefinite short-circuit duration to ground per Absolute Maximum Ratings (Table 5), but sustained operation at ±8 mA should be avoided to prevent junction temperature rise beyond safe limits in high-ambient environments.
Can OP293ESZ-REEL7 drive capacitive loads without oscillation?
Yes, OP293ESZ-REEL7 is unconditionally stable with capacitive loads up to 200 pF in unity-gain configuration, as stated in the Functional Description section. For larger loads (e.g., >500 pF), overshoot increases - Figure 22 shows 20% small-signal overshoot at 1000 pF with 10 kΩ series resistance. To maintain stability, Analog Devices recommends adding a 2–10 Ω isolation resistor in series with the output or using in-the-loop compensation (e.g., feedback capacitor across Rf) for high-capacitance sensor interfaces like piezoelectric transducers.
How does OP293ESZ-REEL7 differ from OP193 in phase reversal behavior?
OP293ESZ-REEL7 incorporates dedicated lateral PNP transistors (Q7/Q8) that prevent output phase reversal when inputs fall below V– - it remains stable down to −5 V at 25°C. In contrast, OP193 exhibits phase reversal if either input drops more than ~0.7 V below ground, requiring external clamping diodes. This structural difference makes OP293ESZ-REEL7 preferable for unattended battery-powered systems where input fault conditions cannot be fully controlled, such as remote environmental sensors exposed to ESD or transient coupling.
OP293ESZ-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 0.015V/µs
- Gain Bandwidth Product:
- 35 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 15 nA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- -
- Current - Output / Channel:
- 25 mA
- Voltage - Supply Span (Min):
- 1.7 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
OP293ESZ-REEL7 FAQ
1.How can I place an order for OP293ESZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for OP293ESZ-REEL7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for OP293ESZ-REEL7 reliable?
The price and inventory of OP293ESZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OP293ESZ-REEL7 is usually 5 days.
3.What payment methods are accepted for OP293ESZ-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OP293ESZ-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OP293ESZ-REEL7?
OP293ESZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OP293ESZ-REEL7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for OP293ESZ-REEL7?
For technical support, including OP293ESZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OP293ESZ-REEL7 requirements.
6.How does Aetrix verify that OP293ESZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All OP293ESZ-REEL7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that OP293ESZ-REEL7 meets industry standards.
7.What is the process for return or replacement of OP293ESZ-REEL7?
All OP293ESZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with OP293ESZ-REEL7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The OP293ESZ-REEL7 part is unused and in its original packaging.
Return procedure for OP293ESZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OP293ESZ-REEL7 Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
