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Evaluates: MAX40007

MAX40007 Evaluation Kit

Detailed Description of Hardware

The MAX40007 EV kit contains the MAX40007 IC, which

is a rail-to-rail output micropower op amp with an ultra-low

700nA supply current designed in a 6-bump WLP. The EV

kit operates from a single 1.7V to 5.5V DC power supply.

Default Application Circuit

The EV kit comes preconfigured in a unity-gain buffer

configuration.

Op Amp Configurations

The EV kit provides flexibility to easily reconfigure the op amp

into any of the three common circuit topologies: inverting

amplifier, noninverting amplifier, differential amplifier.

These configurations are described in the next few sections.

Noninverting Amplifier

To configure the device as a noninverting amplifier,

replace R4 and R3 with suitable resistors. Install J1 to

configure the op amp into noninverting mode. The output

voltage (VOUT) for the noninverting configuration is

given by the following equation:

(

)

OUT







where:

VOS = Input-referred offset voltage.

VIN+ = Input voltage applied at the IN+ PCB pad.

Inverting Amplifier

To configure the device as an inverting amplifier, replace

R4 and R3 with suitable gain resistors. An appropriate DC

voltage (VDC) should be applied to the IN+ test point to

level-shift the output voltage of the op amp if the applied

input voltage (VIN-) at the IN- test point pad is positive:

(

)

(

) (

)

OUT

−



= −





Differential Amplifier

To configure the device as a differential amplifier, replace

R2, RCI, R3, and R4 with appropriate resistors. When RCI

= R4 and R2 = R3, the CMRR of the differential amplifier

is determined by the matching of ratios R3/R4 and R2/RCI:

OUT

GAIN(V

) 1

+−



−





where:

GAIN

Note: RCI means resistor on CI Pad.

Buffer Amplifier

By default, the EV kit is configured as a standard unity-

gain buffer.

OUT

Table 1. Default Jumper Settings

#RoHS-compliant

Note: Indicate that you are using the MAX40007 when contacting this component supplier.

Component Suppliers

Ordering Information

PART

TYPE

MAX40007EVKIT#

EV Kit

SUPPLIER

WEBSITE

Murata Electronics North America, Inc.

www.murata.com

JUMPER

SHUNT POSITION

DESCRIPTION

JU1

Not installed

IN- to GND

JU2

2-3

VSS = GND

1-2

User-defined VSS on VSS test point

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