MAXIM MAX44265 Technical data

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 cur­rent of 1pA, rail-to- rail input and output, low supply cur­rent 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 sup­ply 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

MAX44265EWT+ -40°C to +85°C 6 WLP +BY

PIN­PACKAGE

TOP

MARK

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 (VDDto VSS) ......................-0.3V to +6.0V

IN_+, IN_-, OUT_, SHDN_............... (V

SS

- 0.3V) to (VDD+ 0.3V)

Current into IN_+, IN_- ......................................................±20mA

Output Short-Circuit Duration to V

DD

or VSS..............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

(VDD= 1.8V to 5.5V, VSS= 0V, VCM= 0V, V

OUT

= VDD/2, RL= ∞ connected to VDD/2, SHDN_ = VDD, TA= +25°C, unless otherwise

noted.) (Note 1)

)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Supply Voltage Range V

Supply Current I

Shutdown Supply Current I

Input Offset Voltage V

Input Bias Current I

Input Offset Current I

Input Resistance R

Input Common-Mode Range V

Common-Mode Rejection Ratio CMRR -0.1V < VCM < VDD + 0.1V, VDD = 5.5V 70 80 dB

Power-Supply Rejection Ratio PSRR 1.8V < VDD < 5.5V 65 95 dB

Open-Loop Gain A

Output-Voltage-Swing Low V

Output Short-Circuit Current I

DD(SHDN_

OUT(SC)

DD

DD

OS

B

OS

IN

CM

VOL

OH

OL

Guaranteed by PSRR test 1.8 5.5 V

VDD = 1.8V 4

VDD = 5.5V 4 5.0
SHDN_ = GND 0.001 0.5 µA

±0.2 ±1mV

(Note 2) ±1 ±10 pA

(Note 2) ±1 ±10 pA

Common mode 1

Differential mode, -1mV < VIN < +1mV 10

V

Guaranteed by CMRR test

25mV < V

= 100kΩ, VDD = 5.5V

R

L

100mV < V

= 5kΩ, VDD = 5.5V

R

L

VDD - V

V

- V

OUT

< VDD - 25mV,

OUT

OUT

OUT

SS

< VDD - 100mV,

RL = 100kΩ 2.5 5

RL = 5kΩ 50 70Output-Voltage-Swing High V

RL = 1kΩ 250

RL = 100kΩ 2.5 5

RL = 5kΩ 50 70

RL = 1kΩ 250

-

SS

0.1

95 120

95 110

VDD +

±15 mA

0.1

µA

GΩ

V

dB

mV

mV

MAX44265

Rail-to-Rail, 200kHz Op Amp

with Shutdown in a Tiny, 6-Bump WLP

_______________________________________________________________________________________ 3

)

ELECTRICAL CHARACTERISTICS (continued)

(VDD= 1.8V to 5.5V, VSS= 0V, VCM= 0V, V

OUT

= VDD/2, RL= ∞ connected to VDD/2, SHDN_ = VDD, TA= +25°C, unless otherwise

noted.) (Note 1)

ELECTRICAL CHARACTERISTICS

(VDD= 1.8V to 5.5V, VSS= 0V, VCM= 0V, V

OUT

= VDD/2, RL= ∞ connected to VDD/2, SHDN_ = VDD, TA= -40°C to +85°C, unless

otherwise noted.) (Note 1)

)

SHDN_ Logic Low V

SHDN_ Logic High V

SHDN_ Input Bias Current

Output Leakage in Shutdown I

Gain-Bandwidth Product 200 kHz

Slew Rate 0.1 V/µs

Capacitive-Load Stability (See
the Driving Capacitive Loads
Section)

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

Delay Time to Shutdown t

Delay Time to Enable t

Power-Up Time VDD = 0 to 5.5V step 5 µs

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

OUT(SHDN_

C

LOAD

VDD = 1.8V to 3.6V 0.4

VDD = 3.6V to 5.5V 0.8

VDD = 1.8V to 3.6V 1.4

VDD = 3.6V to 5.5V 2

SHDN_ = VSS (Note 2) 1
SHDN_ = V
SHDN_ = VSS, V

No sustained
oscillations

IDD = 5% of normal operation,
V

DD

V

OUT

V

DD

DD

OUT

= 5.5V, V

= 2.7V, V

= 5.5V, V

= 0V to V

OUT

AV = 1V/V 30

AV = 10V/V 250

RL = 5kΩ, AV = 1V/V 200

R

ISO

= 2V step, AV = -1V/V 18 µs

= 5.5V to 0 step

SHDN_

settles to 0.1%,

OUT

= 0 to 5.5V step

SHDN_

DD

= 1kΩ, AV = 1V/V 100

1 500 nA

2µs

30 µs

I

I

IL

IH

SH

EN

IL

IH

500

V

V

nA

pF

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Supply Voltage Range V

Supply Current I

Shutdown Supply Current I

Input Offset Voltage V

Input-Offset-Voltage
Temperature Coefficient

DD

DD

DD(SHDN_

OS

TC

VOS

Guaranteed by PSRR test 1.8 5.5 V

VDD = 5.5V 5.5 µA
SHDN_ = GND 1 µA

±5mV

±5 µV/°C

MAX44265

Rail-to-Rail, 200kHz Op Amp
with Shutdown in a Tiny, 6-Bump WLP

4 _______________________________________________________________________________________

Note 1: Specifications are 100% tested at TA= +25°C (exceptions noted). All temperature limits are guaranteed by design.
Note 2: Guaranteed by design, not production tested.

ELECTRICAL CHARACTERISTICS (continued)

(VDD= 1.8V to 5.5V, VSS= 0V, VCM= 0V, V

OUT

= VDD/2, RL= ∞ connected to VDD/2, SHDN_ = VDD, TA= -40°C to +85°C, unless

otherwise noted.) (Note 1)

)

Input Bias Current I

Input Offset Current I

Input Common-Mode Range V

Common-Mode Rejection Ratio CMRR -0.05V < VCM < VDD + 0.05V, VDD = 5.5V 60 dB

Power-Supply Rejection Ratio PSRR 1.8V < VDD < 5.5V 59 dB

Open-Loop Gain A

Output-Voltage-Swing High V

Output-Voltage-Swing Low V

SHDN_ Logic Low V

SHDN_ Logic High V

SHDN_ Input-Bias Current

Output Leakage in Shutdown I

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

OUT(SHDN_

B

OS

V

-

CM

VOL

OH

OL

IL

IH

I

IL

I

IH

Guaranteed by CMRR test

25mV < V
R

= 100kΩ, VDD = 5.5V

L

150mV < V
R

= 5kΩ, VDD = 5.5V

L

VDD - V

V

- V

OUT

VDD = 1.8V to 3.6V 0.4

VDD = 3.6V to 5.5V 0.8

VDD = 1.8V to 3.6V 1.4

VDD = 3.6V to 5.5V 2

SHDN_ = V
SHDN_ = V
SHDN_ = VSS, V

< VDD - 25mV,

OUT

OUT

OUT

SS

SS

DD

< VDD - 150mV,

RL = 100kΩ 5

RL = 5kΩ 90

RL = 100kΩ 5

RL = 5kΩ 90

= 0V to V

OUT

DD

SS

0.05

85

80

VDD +

±30 pA

±20 pA

0.05

5nA

1000 nA

1000 nA

V

dB

mV

mV

V

V