Datasheet

LM4140
SNVS053E –JUNE 2000–REVISED APRIL 2013 www.ti.com
Figure 26. 10 μF ESR Range
TANTALUM CAPACITORS
Surface-mountable solid tantalum capacitors offer a good combination of small physical size for the capacitance
value, and ESR in the range needed for by the LM4140. The results of testing the LM4140 stability with surface
mount solid tantalum capacitors show good stability with values in the range of 0.1μF. However, optimum
performance is achieved with a 1μF capacitor.
Tantalum capacitors that have been verified as suitable for use with the LM4140 are shown in Table 1.
Table 1. Surface-Mount Tantalum Capacitor Selection Guide
1μF Surface-Mount Tantalums
Manufacturer Part Number
Kemet T491A105M010AS
NEC NRU105N10
Siemens B45196-E3105-K
Nichicon F931C105MA
Sprague 293D105X0016A2T
2.2μF Surface-Mount Tantalums
Kemet T491A225M010AS
NEC NRU225M06
Siemens B45196/2.2/10/10
Nichicon F930J225MA
Sprague 293D225X0010A2T
ALUMINUM ELECTROLYTIC CAPACITORS
Although probably not a good choice for a production design, because of relatively large physical size, an
aluminium electrolytic capacitor can be used in the design prototype for an LM4140 reference. A 1μF capacitor
meeting the ESR conditions can be used. If the operating temperature drops below 0°C, the reference may not
remain stable, as the ESR of the aluminium electrolytic capacitor will increase, and may exceed the limits
indicated in the figures.
MULTILAYER CERAMIC CAPACITORS
Surface-mountable multilayer ceramic capacitors may be an attractive choice because of their relatively small
physical size and excellent RF characteristics.
10 Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated
Product Folder Links: LM4140