Alternatives to Texas Instruments REF200AU/2K5
Texas Instruments REF200AU/2K5 and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 REF200AU/2K5Texas Instruments | LM334MX/NOPBTexas Instruments |  LM234DTSTMicroelectronics | +1more | |
|---|---|---|---|---|
| FFF Compatibility | The pinout of the LM334 is completely different from the REF200, requiring a board redesign. Additionally, a single LM334 only provides one current source and lacks a current mirror, whereas the REF200 contains two isolated 100uA sources and a 1:1 mirror.Both parts are packaged in an industry-standard 8-SOIC footprint.While the output current is adjustable to 100uA using an external resistor, the LM334 has a positive temperature coefficient of +0.33%/°C, which requires external diode temperature compensation to match the low-drift ±25 ppm/°C stability of the laser-trimmed REF200. | The pinout is incompatible with the REF200, requiring a board layout redesign. Two devices are needed to replace the dual current sources of the REF200.Matches the standard 8-SOIC footprint.Adjustable current output up to 10mA. However, like the LM334, it exhibits a high temperature coefficient (+0.33%/°C) unless external diode/resistor temperature-compensation networks are added. | ||
 AI Summary | REF200AU/2K5 by Texas Instruments: Current Mirror, Current Sink/Source Regulator 100µA 8-SOIC. | An active 3-terminal adjustable current source that can be set to 100µA with an external resistor. It requires a layout redesign to map the different pinout and needs two chips to replace both of REF200's dual sources.
| An active, cost-effective alternative manufactured by STMicroelectronics. It operates identically to the LM334, allowing setting the current to 100µA with an external resistor, but requires redesign due to different pinouts and thermal drift characteristics.
| |
| Lifecycle Status | Obsolete | Active | Active | |
| Market Availability | In stock | In stock | In stock | |
| REACH | REACH | REACH | Unknown | |
| RoHS | RoHS | RoHS | RoHS | |
| Description | Current Mirror, Current Sink/Source Regulator 100µA 8-SOIC | Current Source Regulator Adjustable 8-SOIC | LM234 Series 40 V 10 mA Three Terminal Adjustable Current Sources - SOIC-8 | |
| Manufacturer | Texas Instruments | Texas Instruments | STMicroelectronics | |
| Type | Power Management (PMIC) | Power Management (PMIC) | temperature | |
| Datasheet | Open | Open | Open | |
| Lead Time | 6 weeks | 16 weeks | 10 weeks | |
| Country of Origin | - | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8542.39.0090 | - | - | |
| Moisture Sensitivity Level | 3 (168 Hours) | - | - | |
| Accuracy | ±0.5% | - | - | |
| Function | Dual Current Source and Current Sink | - | - | |
| Mounting Type | Surface Mount | - | - | |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | - | - | |
| Current - Output | 100µA | - | - | |
| Supplier Device Package | 8-SOIC | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 REF200AUBurr-Brown | Unknown | Unknown | 3Alternatives availableSee Alternatives |
 REF5025AIDGKTTexas Instruments | In stock | Active | 4Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The Texas Instruments REF200AU/2K5 is marked obsolete, so the manufacturer has discontinued it and any remaining supply is limited to distributor stock. The qualified second sources on this page are active parts you can design in today.
The closest qualified second sources for the Texas Instruments REF200AU/2K5 are the LM334MX/NOPB (Texas Instruments) and the LM234DT (STMicroelectronics), out of 3 matched alternatives in total. Each is compared against the original on fit, form and function in the table above.
Not always. The alternatives to the REF200AU/2K5 are matched on function but can differ in package, pinout or a key parameter, so review the fit/form/function notes in the table and the datasheet before designing one in.
The REF200AU/2K5 (Texas Instruments) is a part in the Power Management (PMIC) category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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