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MAX9934

Description
SPECIALTY ANALOG CIRCUIT, PDSO6
Categoryaccessories   
File Size878KB,19 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
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MAX9934 Overview

SPECIALTY ANALOG CIRCUIT, PDSO6

EVALUATION KIT AVAILABLE
MAX9934
High-Precision, Low-Voltage, Current-Sense Amplifier
with Current Output and Chip Select for Multiplexing
General Description
The MAX9934 high-precision, low-voltage, high-side
current-sense amplifier is ideal for both bidirectional
(charge/discharge) and unidirectional current measure-
ments in battery-powered portable and laptop devices.
Input offset voltage (V
OS
) is a low 10µV (max) at +25°C
across the -0.1V to 5.5V input common-mode voltage
range, and is independent of V
CC
. Its precision input
specification allows the use of very small sense volt-
ages (typically ±10mV full-scale) for minimally invasive
current sensing.
The output of the MAX9934 is a current proportional to
input V
SENSE
and is available in either 25µA/mV or
5µA/mV gain options (G
M
) with gain accuracy better
than 0.25% (max) at +25°C. A chip select (CS) allows
multiplexing of several MAX9934 current outputs to a
single microcontroller ADC channel (see the
Typical
Operating Circuit).
CS is compatible with 1.8V and 3.3V
logic systems.
The MAX9934 is designed to operate from a 2.5V to
3.6V V
CC
supply, and draws just 120µA (typ) quiescent
current. When powered down (V
CC
= 0), RS+ and RS-
draw less than 0.1nA (typ) leakage current to reduce
battery load. The MAX9934 is robust and protected
from input faults of up to ±6V input differential voltage
between RS+ and RS-.
The MAX9934 is specified for operation over the -40°C
to +125°C temperature range and is available in an
8-pin µMAX
®
or a 6-bump UCSP™ (1mm x 1.5mm x
0.6mm), making it ideal for space-sensitive applications.
o
Input Offset Voltage: 10µV (max)
o
Gain Error Less than 0.25%
o
-0.1V to +5.5V Input Common-Mode Voltage
Range
o
Chip Select Allows Multiplexing Several MAX9934
Current Monitors to One ADC
o
Current Output Allows R
OUT
Selection
for Gain Flexibility
o
Single Supply Operation: 2.5V to 3.6V
o
Two Gain Options: G
M
of 25µA/mV (MAX9934T)
and 5µA/mV (MAX9934F)
o
Bidirectional or Unidirectional Operation
o
Small, 6-Bump UCSP (1mm x 1.5mm x 0.6mm)
and 8-Pin
µMAX
Packages
Features
Ordering Information
PART
MAX9934FART+T
MAX9934FAUA+T
MAX9934FAUA/V+T
MAX9934TART+T
MAX9934TAUA+T
MAX9934TAUA/V+T
GAIN
5µA/mV
5µA/mV
5µA/mV
25µA/mV
25µA/mV
25µA/mV
PIN-
PACKAGE
6 UCSP
8 µMAX
8 µMAX
6 UCSP
8 µMAX
8 µMAX
TOP
MARK
AAG
AAG
AAF
AAF
Applications
PDAs and Smartphones
MP3 Players
Sensor Instrumentation Amplifiers
Notebook PCs and Ultra-Mobile PCs
Portable Current Monitoring
Note:
All devices are specified over the -40°C to +125°C
extended temperature range.
+Denotes
a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Typical Operating Circuit
V
CC
= 3.3V
0.1µF
-0.1V
V
CM
5.5V
I
LOAD
R
SENSE
V
CC
MAX9934
RS-
OUT
V
OUT
TO ADC
RS+
R
OUT
10kΩ
GND
CS
FROM
µC
CHIP SELECT
1000pF
µMAX is a registered trademark and UCSP is a trademark of
Maxim Integrated Products, Inc.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-5011; Rev 3; 11/12

MAX9934 Related Products

MAX9934 MAX9934FART+T MAX9934FAUA+T MAX9934TAUA+T MAX9934TALT+T
Description SPECIALTY ANALOG CIRCUIT, PDSO6 SPECIALTY ANALOG CIRCUIT, PDSO6 SPECIALTY ANALOG CIRCUIT, PDSO6 SPECIALTY ANALOG CIRCUIT, PDSO6 SPECIALTY ANALOG CIRCUIT, PDSO6
Is it lead-free? - Lead free Lead free Lead free -
Is it Rohs certified? - conform to conform to conform to conform to
Maker - Maxim Maxim Maxim Maxim
Parts packaging code - BGA TSSOP TSSOP SON
package instruction - VFBGA, BGA6,2X3,20 TSSOP, TSSOP8,.19 TSSOP, TSSOP8,.19 VSON, SOLCC6,.08,25
Contacts - 6 8 8 6
Reach Compliance Code - compli compli compli compli
ECCN code - EAR99 EAR99 EAR99 -
Factory Lead Time - 23 weeks 20 weeks 19 weeks -
Analog Integrated Circuits - Other Types - ANALOG CIRCUIT ANALOG CIRCUIT ANALOG CIRCUIT ANALOG CIRCUIT
JESD-30 code - R-PBGA-B6 S-PDSO-G8 S-PDSO-G8 S-PDSO-N6
length - 1.52 mm 3 mm 3 mm 2 mm
Humidity sensitivity level - 1 1 1 1
Number of functions - 1 1 1 1
Number of terminals - 6 8 8 6
Maximum operating temperature - 125 °C 125 °C 125 °C 125 °C
Minimum operating temperature - -40 °C -40 °C -40 °C -40 °C
Package body material - PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code - VFBGA TSSOP TSSOP VSON
Encapsulate equivalent code - BGA6,2X3,20 TSSOP8,.19 TSSOP8,.19 SOLCC6,.08,25
Package shape - RECTANGULAR SQUARE SQUARE SQUARE
Package form - GRID ARRAY, VERY THIN PROFILE, FINE PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, VERY THIN PROFILE
Peak Reflow Temperature (Celsius) - 260 260 260 260
power supply - 3.3 V 3.3 V 3.3 V 3.3 V
Certification status - Not Qualified Not Qualified Not Qualified Not Qualified
Maximum seat height - 0.69 mm 1.1 mm 1.1 mm 0.8 mm
Maximum supply current (Isup) - 0.23 mA 0.23 mA 0.23 mA 0.23 mA
Maximum supply voltage (Vsup) - 3.6 V 3.6 V 3.6 V 3.6 V
Minimum supply voltage (Vsup) - 2.5 V 2.5 V 2.5 V 2.5 V
Nominal supply voltage (Vsup) - 3.3 V 3.3 V 3.3 V 3.3 V
surface mount - YES YES YES YES
technology - BICMOS BICMOS BICMOS BICMOS
Temperature level - AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE
Terminal form - BALL GULL WING GULL WING NO LEAD
Terminal pitch - 0.5 mm 0.65 mm 0.65 mm 0.65 mm
Terminal location - BOTTOM DUAL DUAL DUAL
Maximum time at peak reflow temperature - NOT SPECIFIED 30 30 30
width - 1 mm 3 mm 3 mm 2 mm
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