Datasheet LM146, LM346 (Texas Instruments) - 10

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LM146, LM346
SNOSBH5B – MAY 2004 – REVISED SEPTEMBER 2004
www.ti.com LM146 TYPICAL PERFORMANCE SUMMARY
The LM146 typical behaviour is shown in Figure 28. The device is fully predictable. As the set current, ISET, increases, the speed, the bias current, and the supply current increase while the noise power decreases proportionally and the VOSremains constant. The usable GBW range of the op amp is 10 kHz to 3.5−4 MHz.
Figure 28. LM146 Typical Characteristics Low Power Supply Operation:
The quad op amp operates down to ±1.3V supply. Also, since the internal circuitry is biased through programmable current sources, no degradation of the device speed will occur.
SPEED VS POWER CONSUMPTION
LM146 vs LM4250 (single programmable). Through Figure 29, we observe that the LM146's power consumption has been optimized for GBW products above 200 kHz, whereas the LM4250 will reach a GBW of no more than 300 kHz. For GBW products below 200 kHz, the LM4250 will consume less power.
Figure 29. LM146 vs LM4250
10 Submit Documentation Feedback Copyright © 2004, Texas Instruments Incorporated Product Folder Links: LM146 LM346 Document Outline FEATURES DESCRIPTION Connection Diagram Capacitorless Active Filters (Basic Circuit) ABSOLUTE MAXIMUM RATINGS DC ELECTRICAL CHARACTERISTICS DC ELECTRICAL CHARACTERISTIC DC ELECTRICAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS APPLICATION HINTS COMMON-MODE INPUT VOLTAGE OUTPUT VOLTAGE SWING VS ISET INPUT CAPACITANCE TEMPERATURE EFFECT ON THE GBW ISOLATION BETWEEN AMPLIFIERS LM146 TYPICAL PERFORMANCE SUMMARY SPEED VS POWER CONSUMPTION Typical Applications Active Filters Applications Circuit Synthesis Equations Circuit Synthesis Equations Miscellaneous Applications Schematic Diagram