MAX4206EVKIT+ Maxim Integrated, MAX4206EVKIT+ Datasheet - Page 4

• Manufacturer Part Number: MAX4206EVKIT+
• Description: Amplifier IC Development Tools MAX4206 EVAL KIT
• Manufacturer: Maxim Integrated
• Type: Logarithmic Amplifiersr
• Series: MAX4206r

Specifications of MAX4206EVKIT+

• Rohs: yes
• Product: Evaluation Kits
• Tool Is For Evaluation Of: MAX4206
• Operating Supply Voltage: 2.7 V to 11 V, +/- 2.7 V to +/- 5.5 V
• Description/function: MAX4206 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that demonstrates the MAX4206 logarithmic amplifier
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Operating Supply Current: 20 mA

1) Verify that there is no shunt across jumpers JU1,
2) Verify that there is a shunt across JU11 (sets
3) Verify that shunts are connected across jumpers
4) Verify that shunts are connected across jumpers
5) Connect a +5V power supply to the VCC pad.
MAX4206 Evaluation Kit
4
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JU9, and JU10 (dual-supply operation).
CMVIN = CMVOUT).
JU2 (pins 2 and 3), JU4 (pins 1 and 4), JU5 (pins 1
and 2), and JU7 (pins 2 and 3); and JU6 is open
(sets output scale factor K = 1V/decade).
JU8 (pins 2 and 3) and JU3 (pins 1 and 3) (sets on-
board reference current = 100nA).
Connect the power-supply ground to the GND pad.
Connect a -5V power supply to the VEE pad.
Evaluating the MAX4207
(Dual-Supply Operation)
6) Connect a 100µA current source to the LOGIIN pad.
7) Turn on the power supply and verify the output volt-
The MAX4207 accepts a large output-offset voltage
adjustment at the inverting configuration. To adjust the
output offset voltage, install a resistor on R3 and poten-
tiometer on R4 pads, and make sure there is a shunt
across JU2 (pins 1 and 2). The magnitude of the offset
voltage is given by the following equation:
where V
the effective resistance between the LOGV2 and
SCALE pins.
V
OS
ages LOGV1 = -0.75V and LOGV2 = 3.00V.
= REFOUT x (R4 / (R3 + R4)) x (1 + R
Output Offset Adjustment (MAX4207)
OS
is the desired offset voltage, and R
COMB
COMB
/ R6)
is