C

1

0.1 F

m

R

100W

1

(1)

+5V

V

IN

ADS8327

Low Power

16-Bit

500kSPS

C

3

(1)

1.2nF

100nF

+5V

REF IN

-IN

+IN

REF5040

4.096V

+5V

TLV376

Copyright © 2016, Texas Instruments Incorporated

C

1

1nF

C

150pF

2

R

3

5.49kW

R

1

5.49kW

R

2

12.4kW

V+

V

OUT

V

IN

TLV376

(V+)/2

Copyright © 2016, Texas Instruments Incorporated

16

TLV376, TLV2376, TLV4376

SBOS755 – OCTOBER 2016

www.ti.com

Product Folder Links: TLV376 TLV2376 TLV4376

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Copyright © 2016, Texas Instruments Incorporated

Application Information (continued)

8.1.3 Active Filtering

The TLVx376 family is well-suited for filter applications requiring a wide-bandwidth, fast slew rate, low-noise,

single-supply operational amplifier. Figure 26 shows a 50-kHz, 2nd-order, low-pass filter. The components have

been selected to provide a maximally-flat Butterworth response. Beyond the cutoff frequency, roll-off is –40 dB

per decade. The Butterworth response is ideal for applications requiring predictable gain characteristics (such as

the antialiasing filter used ahead of an ADC).

Figure 26. Second-Order, Butterworth, 50-kHz, Low-Pass Filter

8.1.4 Driving an Analog-to-Digital Converter

The low-noise and wide-gain bandwidth of the TLVx376 family make these devices ideal for driving ADCs.

Figure 27 shows the TLV376 driving an ADS8327, a 16-bit, 250-kSPS converter. The amplifier is connected as a

unity-gain, noninverting buffer.

NOTE: Suggested value; may require adjustment based on specific application.

Figure 27. Driving an ADS8327