OPA2344PAG4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The OPA2344PAG4 is a dual-channel, single-supply CMOS operational amplifier from Texas Instruments with a 10 fA maximum bias current, 1200 µV input offset voltage, and 92 dB typical CMRR. It operates from a single supply and is housed in a DIP package for battery-powered precision signal conditioning applications.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- OPA2344PAG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of OPA2344PAG4?
- Ultra-low bias current of 10 fA maximum (0.00001 µA) eliminates leakage error in high-impedance sensor interfaces and transimpedance amplifiers
- 92 dB typical common-mode rejection ratio rejects power supply and ground noise in single-supply precision measurement circuits
- Single-supply voltage-feedback architecture with rail-to-rail input swing enables full signal range utilization in 3.3 V and 5 V battery-powered systems
What is OPA2344PAG4 used for?
The OPA2344PAG4 is designed for precision single-supply signal conditioning in photodiode transimpedance amplifiers, pH meter front-ends, and medical electrochemical sensor interfaces where 10 fA bias current leakage would corrupt measurement results. Its 92 dB CMRR and 1200 µV maximum offset voltage support accurate differential signal recovery in data acquisition systems operating from 3 V to 5 V single rails. Industrial data loggers and portable analytical instruments benefit from its dual-channel integration in a through-hole DIP package for low-volume prototyping and legacy board compatibility.
What are the specifications of OPA2344PAG4?
| Pbfree Code | No |
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Average Bias Current-Max (IIB) | 0.00001 µA |
| Bias Current-Max (IIB) @25C | 0.00001 µA |
| Common-mode Reject Ratio-Min | 74dB |
| Common-mode Reject Ratio-Nom | 92dB |
| Frequency Compensation | YES |
| Input Offset Voltage-Max | 1200 µV |
| JESD-30 Code | R-PDIP-T8 |
| JESD-609 Code | e4 |
| Low-Bias | YES |
| Low-Offset | NO |
| Micropower | YES |
| Number of Functions | 2 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Power | NO |
| Programmable Power | NO |
| Qualification Status | Not Qualified |
| Slew Rate-Nom | 0.8V/us |
| Supply Current-Max | 0.3mA |
| Supply Voltage Limit-Max | 7.5V |
| Supply Voltage-Nom (Vsup) | 5.5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Unity Gain BW-Nom | 1000 |
| Voltage Gain-Min | 31600 |
| Wideband | NO |
| ## OPA2344PAG4 Alternates Showing results | Image |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Where can I find the OPA2344PAG4 datasheet?
OPA2344PAG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for OPA2344PAG4?
Compatible alternatives and drop-in replacements for OPA2344PAG4:
Frequently Asked Questions
How does the OPA2344PAG4's 10 fA bias current benefit a photodiode current-to-voltage converter?
With a maximum input bias current of 0.00001 µA (10 fA), the OPA2344PAG4 introduces less than 10 µV of offset error across a 1 GΩ feedback resistor in a transimpedance amplifier, compared to over 1 mV for amplifiers with 1 pA bias current. This makes it ideal for detecting sub-nanoampere photocurrents in spectrometers and light-barrier sensors operating from a 5 V single supply.
What input offset voltage does the OPA2344PAG4 guarantee, and how does it affect a pH sensor measurement system?
The OPA2344PAG4 guarantees a maximum input offset voltage of 1200 µV, which translates to less than 0.02 pH unit of systematic error in a standard glass-electrode pH buffer circuit amplified at unity gain. For a pH meter requiring 0.1 pH resolution, this 1200 µV offset is easily nulled digitally, giving a clean signal chain without external trimmer potentiometers.
What common-mode rejection ratio does the OPA2344PAG4 provide, and why does it matter in a single-supply differential measurement system?
The OPA2344PAG4 provides 74 dB minimum and 92 dB typical CMRR, attenuating 1 V of common-mode noise at the input to less than 25 µV at the output in a differential configuration. This level of rejection is critical in industrial 4-20 mA current loop receivers and bridge strain gauge amplifiers where mains-frequency interference on both input lines must be suppressed below the 1 mV measurement floor.
Is the OPA2344PAG4 RoHS-compliant, and what are its procurement and lifecycle considerations for new designs?
The OPA2344PAG4 carries a Pb-free code of No (leaded finish) and a YTEOL of 0, indicating it is at end-of-life status and not recommended for new designs requiring long-term supply continuity. Designers starting new projects should evaluate the OPA2344UA or pin-compatible CMOS op-amps with RoHS e3 or e4 lead-free finishes and active lifecycle status to avoid obsolescence issues within 2 to 5 years.
Related Guides
BQ76942PFBR Battery Monitor Selection and Procurement Guide
Choose BQ76942PFBR by cell count, protection architecture, factory configuration, measurement needs, and a controlled sourcing specification.
Nov 13, 2026
SEP0640Q38CB Surge Protection Board Validation Guide
Validate a SEP0640Q38CB protection network through operating-envelope review, surge-current routing, recovery tests, and assembly checks.
Nov 13, 2026
BQ76942PFBR Battery Monitor Board Validation Guide
Validate BQ76942PFBR cell sensing, current measurement, protection switching, and configuration before releasing a battery-monitor board.
Nov 12, 2026
ECA1JHG220 Power-Rail Filter Design and Validation
Validate a 22 µF, 63 V ECA1JHG220 power-rail filter with droop calculations, startup measurements, ripple checks, and thermal tests.
Nov 11, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit