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| Price | Packaging | CAD Design Tools | Samples | |||||
| Device | Status | Price | Quantity | Package | Pins | Top Side Marking | Package QTY | Package Carrier | Symbols | Footprints | Samples |
| INA121P | ACTIVE | 3.55 | 1ku | PDIP (P) | 8 | View | 50 | TUBE | Contact TI Distributor or Sales Office | ||
| INA121PA | ACTIVE | 2.50 | 1ku | PDIP (P) | 8 | View | 50 | TUBE | Contact TI Distributor or Sales Office | ||
| INA121PAG4 | ACTIVE | 2.50 | 1ku | PDIP (P) | 8 | View | 50 | TUBE | Contact TI Distributor or Sales Office | ||
| INA121PG4 | ACTIVE | 3.55 | 1ku | PDIP (P) | 8 | View | 50 | TUBE | Contact TI Distributor or Sales Office | ||
| INA121U | ACTIVE | 3.90 | 1ku | SOIC (D) | 8 | View | 75 | TUBE | Contact TI Distributor or Sales Office | ||
| INA121U/2K5 | ACTIVE | 3.55 | 1ku | SOIC (D) | 8 | View | 2500 | LARGE T&R | Purchase Samples | ||
| INA121U/2K5G4 | ACTIVE | 3.55 | 1ku | SOIC (D) | 8 | View | 2500 | LARGE T&R | Purchase Samples | ||
| INA121UA | ACTIVE | 2.75 | 1ku | SOIC (D) | 8 | View | 75 | TUBE | Contact TI Distributor or Sales Office | ||
| INA121UA/2K5 | ACTIVE | 2.50 | 1ku | SOIC (D) | 8 | View | 2500 | LARGE T&R | Purchase Samples | ||
| INA121UA/2K5E4 | ACTIVE | 2.50 | 1ku | SOIC (D) | 8 | View | 2500 | LARGE T&R | Purchase Samples | ||
| INA121UAE4 | ACTIVE | 2.75 | 1ku | SOIC (D) | 8 | View | 75 | TUBE | Contact TI Distributor or Sales Office | ||
| INA121UG4 | ACTIVE | 3.90 | 1ku | SOIC (D) | 8 | View | 75 | TUBE | Contact TI Distributor or Sales Office | ||
* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.
| Reported Distributor Inventory as of 11:25 AM GMT, 09 Feb 2010 | |||
| Region | Company | In Stock | Purchase |
| TI Lead Time*: 14 WeeksINA121P | |||
| Americas | Newark | 491 | |
| Rochester Electronics | >1k | ||
| Asia | Farnell Asia | 16 | |
| WPI | 165 | ||
| Europe | Farnell | 16 | |
| Worldwide | DigiKey | 970 | |
| Mouser Electronics | 265 | ||
| TI Lead Time*: 14 WeeksINA121PA | |||
| Americas | Newark | >1k | |
| Asia | Farnell Asia | 11 | |
| WPI | 91 | ||
| Europe | Farnell | 11 | |
| Worldwide | DigiKey | >1k | |
| Mouser Electronics | 384 | ||
| TI Lead Time*: 14 WeeksINA121PAG4 | |||
| Worldwide | DigiKey | Available | |
| Mouser Electronics | 206 | ||
| TI Lead Time*: 14 WeeksINA121PG4 | |||
| Worldwide | DigiKey | Available | |
| Mouser Electronics | 40 | ||
| TI Lead Time*: 20 WeeksINA121U | |||
| Asia | Farnell Asia | 53 | |
| TI Lead Time*: 20 WeeksINA121U/2K5 | |||
| None Reported View Distributors | |||
| TI Lead Time*: 20 WeeksINA121U/2K5G4 | |||
| None Reported View Distributors | |||
| TI Lead Time*: 18 WeeksINA121UA | |||
| Europe | Compel | 61 | |
| TI Lead Time*: 18 WeeksINA121UA/2K5 | |||
| None Reported View Distributors | |||
| TI Lead Time*: 18 WeeksINA121UA/2K5E4 | |||
| None Reported View Distributors | |||
| TI Lead Time*: 18 WeeksINA121UAE4 | |||
| None Reported View Distributors | |||
| TI Lead Time*: 20 WeeksINA121UG4 | |||
| None Reported View Distributors | |||
** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.
| Product Content | DPPM / MTBF / FIT Rate | ||||
| Device | Eco Plan* | Lead / Ball Finish | MSL Rating / Peak Reflow | Details | Details |
INA121P  | Green (RoHS & no Sb/Br) | CU NIPDAU | N/A for Pkg Type | View | View |
| INA121PA | Green (RoHS & no Sb/Br) | CU NIPDAU | N/A for Pkg Type | View | View |
| INA121PAG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | N/A for Pkg Type | View | View |
| INA121PG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | N/A for Pkg Type | View | View |
| INA121U | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | View | View |
| INA121U/2K5 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | View | View |
| INA121U/2K5G4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | View | View |
| INA121UA | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | View | View |
| INA121UA/2K5 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | View | View |
| INA121UA/2K5E4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | View | View |
| INA121UAE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | View | View |
| INA121UG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-3-260C-168 HR | View | View |
* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.
If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.
Most useful technical documents for INA121 
| Name | Part # | Company | Tool / Software Type |
| Calculate Input Common-Mode Range of Instrumentation Amplifiers | INA-CMV-CALC | Texas Instruments | Calculation Utilities |
| SPICE-Based Analog Simulation Program | TINA-TI | Texas Instruments | Simulators |
| MDACBufferPro(TM) Output Buffer Amplifier Selection Tool | MDACBUFFERPRO | Texas Instruments | Application Software |
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