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| LMP7721 - 3 Femtoampere Input Bias Current Precision Amplifier from the PowerWise® Family |
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| Datasheet | Packaging | Samples & Pricing | Models | Application Notes | Knowledge Base |
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Features
Unless otherwise noted, typical values at TA = 25°C, VS = 5V.
General Description The LMP7721 is the industry’s lowest guaranteed input bias current precision amplifier. More... Applications
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Typical Application
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Additional Resources Application Notes (see below)
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RoHS Compliance Information
| Size in Kbytes | Date | |||
| LMP7721 3 Femtoampere Input Bias Current Precision Amplifier | 602 Kbytes | 14-Mar-08 | View Online | Download | Receive via Email |
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If you have trouble printing or viewing PDF file(s), see Printing Problems. |
| Part Number | Package | Factory Lead Time | Models | Samples & Electronic Orders | Budgetary Pricing | Std Pack Size | Package Marking Format | ||||||||
| Type | Pins | Spec. | MSL Rating | Peak Reflow | RoHS Report | CAD Symbols | Weeks | Qty | Qty | $US each | |||||
| LMP7721MAE | SOIC NARROW | 8 | RoHS | N/A | Full production | LMP7721.MOD | CALL | reel of N/A | NSZXTT LMP77 21MA | ||||||
| N/A | N/A | ||||||||||||||
| LMP7721MA | SOIC NARROW | 8 | NOPB | 1 | 260 | RoHS | N/A | Full production | LMP7721.MOD | ![]() | 1K+ | $4.95 | rail of 95 | NSZXTT LMP77 21MA | |
| 16 weeks | 2000 | ||||||||||||||
| LMP7721MAX | SOIC NARROW | 8 | NOPB | 1 | 260 | RoHS | N/A | Full production | LMP7721.MOD | | 1K+ | $4.95 | reel of 2500 | NSZXTT LMP77 21MA | |
| 16 weeks | N/A | ||||||||||||||
The LMP7721 is the industry’s lowest guaranteed input bias current precision amplifier. The ultra low input bias current is 3 fA, with a guaranteed limit of ±20 fA at 25°C and ±900 fA at 85°C. This is achieved with the latest patent pending technology of input bias current cancellation amplifier circuitry. This technology also maintains the ultra low input bias current over the entire input common mode voltage range of the amplifier.
Other outstanding features, such as low voltage noise (6.5 nV/
As part of National’s PowerWise products, the LMP7721 provides the remarkably wide gain bandwidth product (GBW) of 17 MHz while consuming only 1.3 mA of current. This wide GBW along with the high open loop gain of 120 dB enables accurate signal conditioning. With these specifications, the LMP7721 has the performance to excel in a wide variety of applications such as electrochemical cell amplifiers and sensor interface circuits.
The LMP7721 is offered in an 8-pin SOIC package with a special pinout that isolates the amplifier’s input from the power supply and output pins. With proper board layout techniques, the unique pinout of the LMP7721 will prevent PCB leakage current from reaching the input pins. Thus system error will be further reduced.
| Title | Size in Kbytes | Date | |||
| AN-1796: Application Note 1796 LMP7721 Evaluation Board | 136 Kbytes | 5-Mar-08 | View Online | Download | Receive via Email |
| AN-1798: Application Note 1798 Designing with Electro-Chemical Sensors | 140 Kbytes | 9-Apr-08 | View Online | Download | Receive via Email |
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If you have trouble printing or viewing PDF file(s), see Printing Problems. |
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