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LM211DR2G Equivalent & Substitute Parts
Part Overview
The LM211DR2G is a general-purpose comparator IC manufactured by onsemi, supplied in 8-SOIC surface mount packaging. This device operates across a wide supply voltage range (5V ~ 30V single supply, ±2.5V ~ 15V dual supply) and features open-collector/open-emitter output configurations suitable for DTL, MOS, RTL, and TTL logic families. The part is currently active in production with 16,117 units in stock. Substitute parts are necessary when addressing supply chain constraints, packaging format requirements, or extended operating temperature specifications for specific application demands.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | LM211DR2G |
| Manufacturer | onsemi |
| Category | Linear |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| Packaging Format | Tape & Reel (TR) |
| Type | General Purpose |
| Number of Elements | 1 |
| Output Type | DTL, MOS, Open-Collector, Open-Emitter, RTL, TTL |
| Voltage - Supply, Single/Dual (±) | 5V ~ 30V, ±2.5V ~ 15V |
| Voltage - Input Offset (Max) | 3mV @ ±15V |
| Current - Input Bias (Max) | 0.1µA @ ±15V |
| Current - Quiescent (Max) | 6mA |
| Operating Temperature | -25°C ~ 85°C |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Product Status | Active |
Substitute Part Grouping Explanation
Substitution eligibility for the LM211DR2G is determined by the following critical parameters:
Mandatory Compatibility Criteria:
- Package / Case: 8-SOIC (0.154", 3.90mm Width)
- Mounting Type: Surface Mount
- Type: General Purpose
- Number of Elements: 1
- Output Type: DTL, MOS, Open-Collector, Open-Emitter, RTL, TTL
- Voltage - Supply, Single/Dual (±): Must support 5V ~ 30V, ±2.5V ~ 15V minimum
- Voltage - Input Offset (Max): 3mV @ ±15V
- Current - Input Bias (Max): 0.1µA @ ±15V
- Current - Quiescent (Max): 6mA
- RoHS Status: ROHS3 Compliant
Secondary Considerations:
- Operating Temperature range may extend beyond the reference part's -25°C ~ 85°C specification
- Packaging format (Tube, Cut Tape, Tape & Reel) may differ based on procurement requirements
- Product Status variations (Active, Discontinued at DiGi Electronics, Last Time Buy, Obsolete) affect long-term availability
All substitute parts listed maintain identical electrical specifications and package geometry, ensuring direct functional interchangeability in circuit applications.
Parameter Comparison
| Part Number | Manufacturer | Voltage Supply (Single/Dual) | Input Offset (Max) | Input Bias (Max) | Quiescent Current (Max) | Operating Temperature | Packaging | Product Status |
|---|---|---|---|---|---|---|---|---|
| LM211DR2G | onsemi | 5V ~ 30V, ±2.5V ~ 15V | 3mV @ ±15V | 0.1µA @ ±15V | 6mA | -25°C ~ 85°C | Tape & Reel (TR) | Active |
| LM211D | STMicroelectronics | 5V ~ 30V, ±2.5V ~ 15V | 3mV @ ±15V | 0.1µA @ ±15V | 6mA | -40°C ~ 105°C | Tube | Active |
| LM211DE4 | Texas Instruments | 4.6V ~ 30V, ±1.75V ~ 15V | 3mV @ ±15V | 0.1µA @ ±15V | 6mA | -40°C ~ 85°C | Not Specified | Obsolete |
| LM211DR | Texas Instruments | 4.6V ~ 30V, ±1.75V ~ 15V | 3mV @ ±15V | 0.1µA @ ±15V | 6mA | -40°C ~ 85°C | Cut Tape (CT) & Digi-Reel® | Active |
| LM211DRG4 | Texas Instruments | 4.6V ~ 30V, ±1.75V ~ 15V | 3mV @ ±15V | 0.1µA @ ±15V | 6mA | -40°C ~ 85°C | Cut Tape (CT) & Digi-Reel® | Discontinued at DiGi Electronics |
| LM211DT | STMicroelectronics | 5V ~ 30V, ±2.5V ~ 15V | 3mV @ ±15V | 0.1µA @ ±15V | 6mA | -40°C ~ 105°C | Cut Tape (CT) & Digi-Reel® | Active |
| LM211MDREP | Texas Instruments | 4.6V ~ 30V, ±1.75V ~ 15V | 3mV @ ±15V | 0.1µA @ ±15V | 6mA | -55°C ~ 125°C | Cut Tape (CT) & Digi-Reel® | Active |
| LM211QD | Texas Instruments | 4.6V ~ 30V, ±1.75V ~ 15V | 3mV @ ±15V | 0.1µA @ ±15V | 6mA | -40°C ~ 125°C | Tube | Active |
| LM211QDG4 | Texas Instruments | 4.6V ~ 30V, ±1.75V ~ 15V | 3mV @ ±15V | 0.1µA @ ±15V | 6mA | -40°C ~ 125°C | Not Specified | Last Time Buy |
| LM211QDR | Texas Instruments | 4.6V ~ 30V, ±1.75V ~ 15V | 3mV @ ±15V | 0.1µA @ ±15V | 6mA | -40°C ~ 125°C | Tape & Reel (TR) | Active |
Engineering Selection Recommendations
Primary Substitutes (Recommended for Direct Replacement):
LM211D (STMicroelectronics) and LM211DT (STMicroelectronics) are the preferred substitutes. Both maintain identical electrical specifications to the LM211DR2G within the 5V ~ 30V and ±2.5V ~ 15V supply range. LM211DT offers extended operating temperature coverage (-40°C ~ 105°C) and is available in Cut Tape & Digi-Reel® packaging. Both parts are ROHS3 compliant with MSL 1 rating.
Secondary Substitutes (Extended Temperature Range):
LM211MDREP (Texas Instruments) and LM211QD (Texas Instruments) provide extended operating temperature specifications (-55°C ~ 125°C and -40°C ~ 125°C respectively). These parts operate within the 4.6V ~ 30V and ±1.75V ~ 15V supply range, which encompasses the LM211DR2G specifications. Selection depends on application temperature requirements and packaging format availability.
Substitutes with Availability Constraints:
LM211QDG4 is designated as Last Time Buy, indicating limited future availability. LM211DE4 is Obsolete and should not be selected for new designs. LM211DRG4 is Discontinued at DiGi Electronics and represents a supply risk.
Packaging Format Considerations:
The LM211DR2G is supplied in Tape & Reel format. LM211QDR (Texas Instruments) provides an active alternative in identical Tape & Reel packaging. For applications requiring Tube or Cut Tape formats, LM211D and LM211DT respectively offer equivalent electrical performance.
Frequently Asked Questions (FAQ)
Q: Can LM211D replace LM211DR2G directly in production?
A: Yes. LM211D maintains identical electrical specifications within the required 5V ~ 30V and ±2.5V ~ 15V supply range, input offset voltage, input bias current, and quiescent current. Both are ROHS3 compliant with MSL 1 rating. The primary difference is packaging format (Tube vs. Tape & Reel) and extended operating temperature range (-40°C ~ 105°C vs. -25°C ~ 85°C).
Q: What is the difference between LM211DR and LM211DR2G?
A: Both parts are manufactured by different suppliers (Texas Instruments vs. onsemi) but share identical electrical specifications and 8-SOIC package geometry. LM211DR operates within 4.6V ~ 30V and ±1.75V ~ 15V supply range, which encompasses the LM211DR2G specifications. LM211DR is available in Cut Tape & Digi-Reel® packaging format.
Q: Are Texas Instruments LM211 variants compatible with onsemi LM211DR2G?
A: Electrical compatibility exists for all Texas Instruments LM211 variants listed, provided the application supply voltage remains within 4.6V ~ 30V and ±1.75V ~ 15V limits. All variants maintain identical input offset voltage, input bias current, and quiescent current specifications. Verify packaging format and product status before selection.
Q: Which substitute offers the widest operating temperature range?
A: LM211MDREP and LM211QD both operate across -55°C ~ 125°C and -40°C ~ 125°C respectively, compared to LM211DR2G at -25°C ~ 85°C. Selection depends on application temperature requirements and packaging availability.
Q: Is LM211QDG4 suitable for new designs?
A: No. LM211QDG4 is designated Last Time Buy, indicating limited future production. For new designs, select from Active status parts: LM211D, LM211DT, LM211DR, LM211MDREP, LM211QD, or LM211QDR.
Q: What packaging formats are available for LM211 substitutes?
A: Available formats include Tape & Reel (TR), Tube, and Cut Tape (CT) & Digi-Reel®. LM211DR2G is supplied in Tape & Reel. LM211QDR provides an equivalent Tape & Reel alternative. LM211D and LM211QD are available in Tube format. LM211DT, LM211DR, LM211DRG4, and LM211MDREP are available in Cut Tape & Digi-Reel® format.
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