MAX9934T Datasheet, PDF (1/6 Pages) Maxim Integrated Products – Fully Assembled and Tested

19-5273; Rev 0; 7/10
MAX9934T Evaluation Kit
General Description
The MAX9934T evaluation kit (EV kit) demonstrates
the MAX9934T low-voltage, precision, current-sense
amplifier for power management in portable consumer
electronics. The device’s precision inputs and the EV
kit’s on-board, precision, low-value sense resistor allows
the measurement of bidirectional (e.g., battery charge/
discharge) currents up to 1A. Input common-mode
range is -0.1V to +5.5V independent of supply. The
device demonstrates a 25FA/mV fixed gain and the
EV kit is configured for a 250V/V gain. The device’s
chip-select (CS) logic input allows users to multiplex
several MAX9934T parts. The EV kit operates from a
+2.5V to +3.6V, 100mA DC power supply.
The EV kit can also be used to evaluate the MAX9934F
current-sense amplifier. See the Evaluating the MAX9934F
section for more information.
Features
S EV Kit Configured for Bidirectional Current
Sensing Up to 1A
S EV Kit Configured for 250V/V Gain
S Chip-Select (CS) Logic Input
S -0.1V to +5.5V Input Common-Mode Range
S +2.5V to +3.6V DC Power-Supply Operation
S Proven PCB Layout
S Fully Assembled and Tested
Ordering Information
PART
TYPE
MAX9934TEVKIT+
EV Kit
+Denotes lead(Pb)-free and RoHS compliant.
PART
MAX9934T
MAX9934F
GAIN
25FA/mV
5FA/mV
Selector Guide
OUTPUT
Current
Current
LOGIC PIN
Chip-select input
Chip-select input
DESIGNATION
C1
C2, C4, C5
C3
C6
GND
GND,
OUT_REF
JU1, JU2, JU3
OUT
QTY
1
3
1
0
2
2
3
1
DESCRIPTION
4.7FF Q10%, 16V X7R ceramic
capacitor (0805)
Murata GRM219R71C475K
0.1FF Q10%, 16V X7R ceramic
capacitors (0603)
Murata GRM188R71C104K
0.01FF Q10%, 16V X7R ceramic
capacitor (0603)
Murata GRM188R71C103K
Not installed, ceramic capacitor
(0603)
Black miniature PCB test points
Black multipurpose PCB test
points
2-pin headers
Red multipurpose PCB test point
UCSP is a trademark and µMAX is a registered trademark of
Maxim Integrated Products, Inc.
Component List
DESIGNATION
R1
R2
R3, R4
RS+, RS-
U1
U2
—
—
QTY
1
1
2
2
1
1
3
1
DESCRIPTION
10mI Q0.1%, Q15ppm/°C
4-terminal resistor (2512)
Vishay Y14870R01000B9
10kI Q0.1%, Q25ppm/°C
resistor (0603)
Panasonic ERA-3YEB103V
10kI Q5% resistors (0603)
White miniature PCB test points
Current-sense amplifier
(6 UCSPK)
Maxim MAX9934TART+
(Top Mark: AAF)
Current-sense amplifier
(8 FMAX^M)
Maxim MAX9934TAUA+
Shunts (JU1, JU2, JU3)
PCB: MAX9934T EVALUATION
KIT+
________________________________________________________________ Maxim Integrated Products   1
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.