19-3568; Rev 1; 12/05
Dual, High-Side, Current-Sense Amplifiers and
Drive Amplifiers
General Description
Features
The MAX1350–MAX1357 offer two programmable high-
side current-sense amplifiers and two drive amplifiers
integrated in a single package.
♦ High-Side Current-Sense Amplifier with Gain of
2 or 10
♦
1ꢀ Current-Sense Aꢁꢁuraꢁc
The current-sense amplifiers have a 5V to 32V common-
mode input range and provide a voltage output that is a
multiple of the sense voltage. The common-mode input
range is independent of supply voltage. An external
sense resistor determines the range of current monitored
by a current-sense amplifier. Gains of 2 or 10 are avail-
able with a typical input-referred offset voltage of zero or
3mV. The 3mV offset option is ideal for applications where
offset nulling is required.
♦ Wide 5V to 32V Common-Mode Voltage Range—
Independent of Supplc Voltage
♦ Adjustable Low Noise 0 to 5V or 0 to 10V Output
Voltage Ranges with 10mA Gate ꢂriꢃe
♦ ꢂriꢃe Amplifier Features Fast Clamp to Ground
The drive amplifiers provide up to 10mA of output cur-
rent capability and a high output capacitive load toler-
ance. Output transients are limited to 100mV during
power-up and power-down events. The drive amplifiers
feature a digitally controllable fast output clamp to
ground. The drive amplifier outputs are current limited
and are offered with gains of 2 or 4.
Ordering Information
PART
TEMP RANGE**
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
20 TSSOP
20 TSSOP
20 TSSOP
20 TSSOP
20 TSSOP
20 TSSOP
20 TSSOP
20 TSSOP
MAX1350EUP*
MAX1351EUP*
MAX1352EUP*
MAX1353EUP*
MAX1354EUP
MAX1355EUP*
MAX1356EUP*
MAX1357EUP*
The drive amplifiers draw approximately 4.75mA, while
the current-sense amplifiers draw approximately 250µA
with full-scale sense inputs. In shutdown mode, the total
supply current reduces to less than 1µA.
The MAX1350–MAX1357 are available in a 20-pin
TSSOP package and operate over the extended (-40°C
to +85°C) temperature range.
*Future product—contact factory for availability.
**For parts that operate over a wider temperature range, contact
factory for availability.
Applications
Cellular Base Stations
Industrial Process Control
Power Amplifiers
Selector Guide appears at end of data sheet.
Pin Configurations
TOP VIEW
N.C.
CAL1
1
2
3
4
5
6
7
8
9
20 CLAMP1
19 CS1+
18 CS1-
17 OUT1
16 OUT2
15 CS2-
N.C.
N.C.
1
2
3
4
5
6
7
8
9
20 CLAMP1
19 CS1+
18 CS1-
17 OUT1
16 OUT2
15 CS2-
SHDN
OUTCS1
IN1
SHDN
OUTCS1
IN1
MAX1350
MAX1351
MAX1356
MAX1357
MAX1352–
MAX1355
IN2
IN2
OUTCS2
CAL2
14
OUTCS2
N.C.
14
CS2+
CS2+
13 CLAMP2
13 CLAMP2
CSGND
12
11
V
DD
V
SS
CSGND
12
11
V
DD
V
SS
DRGND 10
DRGND 10
TSSOP
TSSOP
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.