General Description
The MAX44265 op amp features a maximized ratio of
gain bandwidth (GBW) to supply current and is ideal for
battery-powered applications such as handsets,
tablets, notebooks, and portable medical equipment.
This CMOS op amp features an ultra-low input-bias cur-
rent of 1pA, rail-to- rail input and output, low supply cur-
rent of 4µA, and operates from a single 1.8V to 5.5V
supply. For additional power conservation, the IC also
features a low-power shutdown mode that reduces sup-
ply current to 1nA and puts the amplifier’s outputs in a
high-impedance state. This device is unity-gain stable
with a 200kHz GBW product.
It is available in a space-saving, 0.9mm x 1.3mm,
6-bump WLP package and is specified over the -40°C
to +85°C extended operating temperature range.
Applications
Cell Phones
Tablet/Notebook Computers
Mobile Accessories
Battery-Powered Devices
Features
200kHz GBW
Ultra-Low 4µA Supply Current
Single 1.8V to 5.5V Supply Voltage Range
Ultra-Low 1pA Input Bias Current
Rail-to-Rail Input and Output Voltage Ranges
Low ±200µV Input Offset Voltage
Low 0.001µA Shutdown Current
High-Impedance Output During Shutdown
Unity-Gain Stable
Available in a Tiny, 0.9mm x 1.3mm, 6-Bump WLP
Package
MAX44265
Rail-to-Rail, 200kHz Op Amp
with Shutdown in a Tiny, 6-Bump WLP
________________________________________________________________
Maxim Integrated Products
1
19-5709; Rev 0; 12/10
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.
EVALUATION KIT
AVAILABLE
Ordering Information
PART TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX44265EWT+ -40°C to +85°C 6 WLP +BY
MAX44265
Rail-to-Rail, 200kHz Op Amp
with Shutdown in a Tiny, 6-Bump WLP
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Power-Supply Voltage (V
DD
to V
SS
) ......................-0.3V to +6.0V
IN_+, IN_-, OUT_, SHDN_............... (V
SS
- 0.3V) to (V
DD
+ 0.3V)
Current into IN_+, IN_- ......................................................±20mA
Output Short-Circuit Duration to V
DD
or V
SS
..............Continuous
Continuous Power Dissipation (T
A
= +70°C)
6-Bump WLP (derate 10.5mW/°C above +70°C).........840mW
Operating Temperature Range .......................... -40°C to +85°C
Junction Temperature .....................................................+150°C
Storage Temperature Range ............................-65°C to +150°C
Soldering Temperature (reflow) .......................................+260°C
ELECTRICAL CHARACTERISTICS
(V
DD
= 1.8V to 5.5V, V
SS
= 0V, V
CM
= 0V, V
OUT
= V
DD
/2, R
L
= connected to V
DD
/2, SHDN_ = V
DD
, T
A
= +25°C, unless otherwise
noted.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage Range V
DD
Guaranteed by PSRR test 1.8 5.5 V
V
DD
= 1.8V 4
Supply Current I
DD
V
DD
= 5.5V 4 5.0
µA
Shutdown Supply Current I
DD
(
SHDN_
)
SHDN_ = GND 0.001 0.5 µA
Input Offset Voltage V
OS
±0.2 ±1mV
Input Bias Current I
B
(Note 2) ±1 ±10 pA
Input Offset Current I
OS
(Note 2) ±1 ±10 pA
Common mode 1
Input Resistance R
IN
Differential mode, -1mV < V
IN
< +1mV 10
G
Input Common-Mode Range V
CM
Guaranteed by CMRR test
V
SS
-
0.1
V
DD
+
0.1
V
Common-Mode Rejection Ratio CMRR -0.1V < V
CM
< V
DD
+ 0.1V, V
DD
= 5.5V 70 80 dB
Power-Supply Rejection Ratio PSRR 1.8V < V
DD
< 5.5V 65 95 dB
25mV < V
OUT
< V
DD
- 25mV,
R
L
= 100k, V
DD
= 5.5V
95 120
Open-Loop Gain A
VOL
100mV < V
OUT
< V
DD
- 100mV,
R
L
= 5k, V
DD
= 5.5V
95 110
dB
R
L
= 100k 2.5 5
R
L
= 5k 50 70Output-Voltage-Swing High V
OH
V
DD
- V
OUT
R
L
= 1k 250
mV
R
L
= 100k 2.5 5
R
L
= 5k 50 70
Output-Voltage-Swing Low V
OL
V
OUT
- V
SS
R
L
= 1k 250
mV
Output Short-Circuit Current I
OUT(SC)
±15 mA
MAX44265
Rail-to-Rail, 200kHz Op Amp
with Shutdown in a Tiny, 6-Bump WLP
_______________________________________________________________________________________ 3
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
V
DD
= 1.8V to 3.6V 0.4
SHDN_ Logic Low V
IL
V
DD
= 3.6V to 5.5V 0.8
V
V
DD
= 1.8V to 3.6V 1.4
SHDN_ Logic High V
IH
V
DD
= 3.6V to 5.5V 2
V
I
IL
SHDN_ = V
SS
(Note 2) 1
SHDN_ Input Bias Current
I
IH
SHDN_ = V
DD
500
nA
Output Leakage in Shutdown I
OUT
(
SHDN_
)
SHDN_ = V
SS
, V
OUT
= 0V to V
DD
1 500 nA
Gain-Bandwidth Product 200 kHz
Slew Rate 0.1 V/µs
A
V
= 1V/V 30
A
V
= 10V/V 250
R
L
= 5k, A
V
= 1V/V 200
Capacitive-Load Stability (See
the Driving Capacitive Loads
Section)
C
LOAD
No sustained
oscillations
R
ISO
= 1k, A
V
= 1V/V 100
pF
Input Voltage-Noise Density f = 1kHz 400 nV/Hz
Input Current-Noise Density f = 1kHz 0.001 pA/Hz
Settling Time To 0.1%, V
OUT
= 2V step, A
V
= -1V/V 18 µs
Delay Time to Shutdown t
SH
I
DD
= 5% of normal operation,
V
DD
= 5.5V, V
SHDN_
= 5.5V to 0 step
s
Delay Time to Enable t
EN
V
OUT
= 2.7V, V
OUT
settles to 0.1%,
V
DD
= 5.5V, V
SHDN_
= 0 to 5.5V step
30 µs
Power-Up Time V
DD
= 0 to 5.5V step 5 µs
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= 1.8V to 5.5V, V
SS
= 0V, V
CM
= 0V, V
OUT
= V
DD
/2, R
L
= connected to V
DD
/2, SHDN_ = V
DD
, T
A
= +25°C, unless otherwise
noted.) (Note 1)
ELECTRICAL CHARACTERISTICS
(V
DD
= 1.8V to 5.5V, V
SS
= 0V, V
CM
= 0V, V
OUT
= V
DD
/2, R
L
= connected to V
DD
/2, SHDN_ = V
DD
, T
A
= -40°C to +85°C, unless
otherwise noted.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage Range V
DD
Guaranteed by PSRR test 1.8 5.5 V
Supply Current I
DD
V
DD
= 5.5V 5.5 µA
Shutdown Supply Current I
DD
(
SHDN_
)
SHDN_ = GND 1 µA
Input Offset Voltage V
OS
±5mV
Input-Offset-Voltage
Temperature Coefficient
TC
VOS
±5 µV/°C

MAX44265EWT+T

Mfr. #:
Manufacturer:
Maxim Integrated
Description:
Operational Amplifiers - Op Amps 85MHz w/Rail-Rail
Lifecycle:
New from this manufacturer.
Delivery:
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