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Input Signal

SAR ADC

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LM7332

SNOSAV4B – APRIL 2008 – REVISED JANUARY 2016

www.ti.com

8 Application and Implementation

NOTE

Information in the following applications sections is not part of the TI component

specification, and TI does not warrant its accuracy or completeness. TI’s customers are

responsible for determining suitability of components for their purposes. Customers should

validate and test their design implementation to confirm system functionality.

8.1 Application Information

The LM7332 is a rail-to-rail input and output part with a slightly higher GBW of 20 MHz. It has current capability

of 40-mA sourcing and 65-mA sinking, and can drive unlimited capacitive loads. The LM7332 is available in both

VSSOP and SOIC packages.

8.1.1 Similar High Current Output Devices

The LM6172 has a higher GBW of 100 MHz and over 80 mA of current output. There is also a single version, the

LM6171. The LM7372 has 120 MHz of GBW and 150 mA of current output. The LM7372 is available in an 8-pin

SO PowerPAD™, and 16-pin SOIC packages with higher power dissipation.

The LME49600 buffer has 250 mA of current out and a 110-MHz bandwidth. The LME49600 is available in a

DDPAK/TO-263 package for higher power dissipation.

Detailed information on these parts can be found at www.ti.com.

8.2 Typical Application

Figure 50. Drive Amplifier for SAR ADC Schematic

8.2.1 Design Requirements

plus noise (THD+N) of less than –80 dB is required to maintain signal fidelity. Determine if the LM7332 is a

20

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