LPC4370 datasheet(138/150 Pages) NXP

Part #	LPC4370

Description	32-bit ARM Cortex-M4 2 x M0 MCU 282 kB SRAM Ethernet two HS USBs 80 Msps 12-bit ADC configurable peripherals

PDF	150 Pages

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Manufacturer	NXP [NXP Semiconductors]

Direct Link	http://www.nxp.com

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138 / 150 page

LPC4370

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Product data sheet

Rev. 2 — 21 October 2013

138 of 150

NXP Semiconductors

LPC4370

32-bit ARM Cortex-M4/M0 microcontroller

13.8.3 Non-inverting single-ended circuit for input 0 V to 3.3 V

The advantage of having a non-inverting circuit comes at the cost of adding an additional

op-amp for a high-impedance voltage reference to prevent the reference level being

influenced by the input signal. This circuit is recommended for an input voltage from 0 V to

3.3 V using the internal negative reference voltage.

(4)

(5)

Fig 48. Non-inverting single-ended circuit for input 0 V to 3.3 V for 12-bit ADCHS input

Vout

Vcom

--------------------

Vcom

1.24 V

 R3

--------------------

0 V - 3.3 V

100 mV - 900 mV

Vcom

Vin_pos

Vout

5 V

to ADCHS_n

1.24 V

aaa-009657

LPC4370 Datasheet(PDF) 138 Page - NXP Semiconductors