MAX4470EVKIT+ Maxim Integrated, MAX4470EVKIT+ Datasheet - Page 3

• Manufacturer Part Number: MAX4470EVKIT+
• Description: Amplifier IC Development Tools OPERATIONAL AMPLIFIER
• Manufacturer: Maxim Integrated
• Series: MAX4464, MAX4470, MAX4471, MAX4472, MAX4474r

Specifications of MAX4470EVKIT+

• Operating Supply Voltage: 3 V or 5 V

Important Note: Remove super capacitors C1 and
C2 when not demonstrating super-capacitor charge
balancing in the following four configurations.
To configure the device as a noninverting amplifier,
replace R2 and R6 with suitable resistors. Replace R3
with a short and remove C5 (follow the jumper settings
listed in Table 2). The output voltage (VOUT) for the non-
inverting configura tion is given by the following equation:
where:
To configure the device as an inverting amplifier, cut
open the shorted PCB trace on R1. Replace R3 with
a short and remove C5. Replace R1 and R2 with
suitable gain resistors. Follow the jumper settings listed
in Table 2. An appropriate DC voltage (VDC) may have
to be applied to the IN+ PCB pad to level-shift the output
voltage of the op amp if the applied input voltage (VIN-)
at the IN- pad is positive:
V
V
OS
IN
+ = Input voltage applied at the IN+ PCB pad
V
= Input referred offset voltage
OUT
V
= −
OUT
_______________________________________________________________________________________
R2
R1
=
V



IN
1
+
−
R2
R6
+






1
(
+
V
IN
R2
R1
Noninverting Amplifier
+



+
(
Inverting Amplifier
V
V
OS
OS
+
)
V
DC
)
MAX4470 Evaluation Kit
To configure the device as a differential amplifier, cut
open the shorting PCB trace on R1. Replace R1–R4 with
appropriate resistors. Remove C5. Follow the jumper set-
tings listed in Table 2. Apply a reference voltage (V
to the REF PCB pad to level-shift the output voltage of
the op amp, if required. When R1 = R3 and R2 = R4, the
CMRR of the differential amplifier is determined by the
matching of ratios R1/R2 and R3/R4:
where:
To configure the device as a standard unity-gain buffer,
replace R3 with a short and remove C5:
Important Note: Remove super capacitors C1 and
C2 when not demonstrating super-capacitor charge
balancing in all four configurations just listed.
V
OUT
=
GAIN(V
V
IN
OUT
GAIN
+
−
=
V
=
IN
V
R2
IN
R1
−
)
+
+
=
+



R4
R3
V
1
Differential Amplifier
OS
+
R2
R1
Buffer Amplifier



V
OS
+
V
REF
REF
3
)