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General Description

The MAX4208 evaluation kit (EV kit) simplifies evalua-

tion of the MAX4208 ultra-low offset/drift, adjustable

gain, precision instrumentation amplifier in a µMAX

package. The MAX4208 features high-impedance dif-

ferential inputs optimized for small voltages (±100mV

max) and provides rail-to-rail output. The MAX4208 EV

kit is configured for a gain of 148V/V. The EV kit oper-

ates from a single-supply voltage between 2.85V and

5.5V, or dual supplies providing ±1.425V to ±2.75V.

The MAX4208 EV kit can also be used to evaluate the

MAX4209 fixed-gain amplifiers. The MAX4208 IC tem-

perature range is -40°C to +125°C.

The MAX4209 EV kit, available separately, evaluates the

100V/V fixed-gain MAX4209 amplifier without external

gain-setting resistors.

Note: To evaluate a MAX4209 IC featuring internal

gain-setting resistors, order a MAX4209EVKIT+ or

request a free sample of the MAX4209 IC along with the

MAX4208EVKIT+. See the

Part Selection Table

for IC

ordering information.

Features

o Single- or Dual-Supply Operation

2.85V to 5.5V Single-Supply Operation

±1.425V to ±2.75V Dual-Supply Operation

o Adjustable Voltage Gain Configured to 148V/V

o Rail-to-Rail Output

o Configurable Reference Voltage: Externally or

Internally Buffered

o Optional Current-Sense Mode

o Fully Assembled and Tested

Evaluates: MAX4208/MAX4209

MAX4208 Evaluation Kit

________________________________________________________________

Maxim Integrated Products

19-0997; Rev 0; 9/07

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim's website at www.maxim-ic.com.

Component List

Ordering Information

Part Selection Table

PART TYPE

MAX4208EVKIT+ EV Kit

PART GAIN (V/V)

MAX4208AUA+ Adjustable

MAX4209TAUA+ 10

MAX4209HAUA+ 100

MAX4209KAUA+ 1000

DESIGNATION QTY DESCRIPTION

C1, C3 2

10µF ±10%, 10V X5R ceramic

capacitors (0805)

Murata GRM21BR61A106K

KEMET C0805C106K8PAC

C2, C4, C5 3

0.1µF ±10%, 10V X5R ceramic

capacitors (0402)

Murata GRM155R61A104K

KEMET C0402C104K8RACTU

C6, C7 0 Not installed, capacitors (0603)

C8 1

1000pF ±10%, 16V X5R ceramic

capacitor (0402)

Murata GRM155R61C102K

JU1 1 4-pin header

JU2, JU3 2 2-pin headers

R1 1

1kΩ ±0.1% resistor (0805)

IRC PCF-W0805LF-03-1001-B

R2 1

147kΩ ±0.1% resistor (0805)

IRC PCF-W0805LF-03-1473-B

R3, R4 2 4.99kΩ ±1% resistors (0603)

R5, R6 0 Not installed, resistors—short (0603)

R7 0 Not installed, resistor (1206)

U1 1 MAX4208AUA+ (8-pin µMAX)

— 3 Shunts

— 1 PCB: MAX4208 Evaluation Kit+

Denotes lead-free and RoHS-compliant

µMAX is a registered trademark of Maxim Integrated Products, Inc.

Summary of content (6 pages)

PAGE 1
9-0997; Rev 0; 9/07 MAX4208 Evaluation Kit The MAX4208 evaluation kit (EV kit) simplifies evaluation of the MAX4208 ultra-low offset/drift, adjustable gain, precision instrumentation amplifier in a µMAX® package. The MAX4208 features high-impedance differential inputs optimized for small voltages (±100mV max) and provides rail-to-rail output. The MAX4208 EV kit is configured for a gain of 148V/V. The EV kit operates from a single-supply voltage between 2.85V and 5.5V, or dual supplies providing ±1.
PAGE 2
Evaluates: MAX4208/MAX4209 MAX4208 Evaluation Kit Component Suppliers SUPPLIER IRC PHONE WEBSITE 361-992-7900 www.irctt.com KEMET Corp. 864-963-6300 www.kemet.com Murata Mfg. Co., Ltd. 770-436-1300 www.murata.com Note: Indicate that you are using the MAX4208 or MAX4209 when contacting these component suppliers.
PAGE 3
MAX4208 Evaluation Kit REF Input The EV kit’s jumper JU3 must be configured properly for appropriate reference-voltage operation. In direct reference mode, install a shunt on jumper JU3 to connect REF to the on-board ground (GND), or remove the shunt to connect a user reference voltage to the REF input PCB pad. For either buffered-reference mode, REF must not be connected to a reference voltage; thus, the shunt on jumper JU3 must not be installed. See Table 2 for jumper JU3 configurations.
PAGE 4
Evaluates: MAX4208/MAX4209 MAX4208 Evaluation Kit MAX4208/MAX4209 IC data sheet for application details. Verify that the selected resistor is rated for the appropriate current and power levels. For high-power applications, use the IN+ and IN- PCB pads as sense connections to an off-board currentsense resistor. high-precision, surface-mount 0805 resistors can change the gain. Tolerance of ±0.1% or better is recommended for optimum performance.
PAGE 5
MAX4208 Evaluation Kit Evaluates: MAX4208/MAX4209 Figure 2. MAX4208 EV Kit Component Placement Guide— (Component Side) Figure 3.
PAGE 6
Evaluates: MAX4208/MAX4209 MAX4208 Evaluation Kit Figure 4. MAX4208 EV Kit PCB Layout—Solder Side Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.