• Operating Temperature Range . . . . . . . . . . . . -40°C to +125°C
Related Literature
• See
AN1596,
“ISL28233SOICEVAL1Z Evaluation Board
User’s Guide”
• See
AN1575,
“ISL28433SOICEVAL1Z, ISL28433TSSOPEVAL1Z
Evaluation Board User’s Guide”
Applications
• Bi-Directional Current Sense
• Temperature Measurement
• Medical Equipment
• Electronic Weigh Scales
• Precision/Strain Gauge Sensor
• Precision Regulation
• Low Ohmic Current Sense
• High Gain Analog Front Ends
Typical Application
I-SENSE+
V
+
+1.8V TO +6.0V
V
REF
V
OS
vs Temperature
4
3
INPUT OFFSET VOLTAGE (µV)
499k
2
1
0
-1
-2
-3
4.99k
+
0.1
4.99k
-
V+
V-
499k
V
SENSE
OUT
I-SENSE-
GND
-4
-50
BI-DIRECTIONAL CURRENT SENSE AMPLIFIER
-25
0
25
50
75
100
125
TEMPERATURE (°C)
FN7692 Rev 3.00
July 26, 2011
Page 1 of 25
ISL28233, ISL28433
Ordering Information
PART NUMBER
(Notes 1, 2, 3)
ISL28233FUZ
ISL28233FRZ
ISL28233FBZ
ISL28433FBZ
ISL28433FVZ
Coming Soon
ISL28433FRTZ
ISL28233SOICEVAL1Z
ISL28433TSSOPEVAL1Z
ISL28433SOICEVAL1Z
NOTES:
1. Add “-T*” suffix for tape and reel. Please refer to
TB347
for details on reel specifications.
2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin plate
plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil Pb-free products are
MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
3. For Moisture Sensitivity Level (MSL), please see device information page for
ISL28233, ISL28433.
For more information on MSL please see techbrief
TB363.
233FZ
233Z
28233 FBZ
28433 FBZ
28433 FVZ
TBD
Evaluation Board
Evaluation Board
Evaluation Board
PART
MARKING
8 Ld MSOP
8 Ld 3mmx3mm DFN
8 Ld SOIC
14 Ld SOIC
14 Ld TSSOP
14 Ld 3x4 mm TDFN
PACKAGE
(Pb-Free)
M8.118A
L8.3x3J
M8.15E
MDP0027
MDP0044
TBD
PKG.
DWG. #
FN7692 Rev 3.00
July 26, 2011
Page 2 of 25
ISL28233, ISL28433
Pin Configurations
ISL28233
(8 LD MSOP, SOIC)
TOP VIEW
OUT_A 1
IN-_A 2
IN+_A 3
V- 4
- +
+ -
8 V+
7 OUT_B
6 IN-_B
5 IN+_B
OUT_A
IN-_A
IN+_A
V-
1
2
3
4
ISL28233
(8 LD DFN)
TOP VIEW
8
V+
7
OUT_B
6
IN-_B
5
IN+_B
ISL28433
(14 LD SOIC)
TOP VIEW
OUT_A 1
IN-_A 2
IN+_A 3
V+ 4
IN+_B 5
IN-_B 6
OUT_B 7
- +
+ -
- +
+ -
14 OUT_D
13 IN-_D
12 IN+_D
11 V-
10 IN+_C
9
8
IN-_C
OUT_C
OUT_A 1
IN-_A 2
IN+_A 3
V+ 4
IN+_B 5
IN-_B 6
OUT_B 7
ISL28433
(14 LD TDFN)
TOP VIEW
14 OUT_D
- +
+ -
13 IN-_D
12 IN+_D
11 V-
10 IN+_C
- +
+ -
9
8
IN-_C
OUT_C
ISL28433
(14 LD TSSOP)
TOP VIEW
OUT_A 1
IN-_A 2
IN+_A 3
V+ 4
IN+_B 5
IN-_B 6
OUT_B 7
- +
+ -
- +
+ -
14 OUT_D
13 IN-_D
12 IN+_D
11 V-
10 IN+_C
9
8
IN-_C
OUT_C
FN7692 Rev 3.00
July 26, 2011
Page 3 of 25
ISL28233, ISL28433
Pin Descriptions
ISL28233
(8 LD MSOP,
SOIC, DFN)
3
5
-
-
ISL28433
(14 LD TSSOP,
SOIC, TDFN)
3
5
10
12
PIN
NAME
IN+_A
IN+_B
IN+_C
IN+_D
IN-
V-
Circuit 1
IN+
FUNCTION
Non-inverting input
EQUIVALENT CIRCUIT
V+
+
-
+
-
CLOCK GEN + DRIVERS
4
2
6
-
-
1
7
-
-
11
2
6
9
13
1
7
8
14
V-
IN-_A
IN-_B
IN-_C
IN-_D
OUT_A
OUT_B
OUT_C
OUT_D
Negative supply
Inverting input
(See Circuit 1)
Output
V+
OUT
V-
Circuit 2
8
-
4
-
V+
PAD
Positive supply
Thermal Pad
Thermal Pad. Connect to most negative supply. TDFN and
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