MAX4038：Low IBIAS, +1.4V/800nA, Rail-to-Rail Op Amps with +1.2V Buffered Reference

Low IBIAS +1.4V/800nA, Rail-to-Rail Op Amplifiers with +1.2V Buffered Reference

The single MAX4036/MAX4037 and dual MAX4038/MAX4039 operational amplifiers operate from a single +1.4V to +3.6V (without reference) or +1.8V to +3.6V (with reference) supply and consume only 800nA of supply current per amplifier, and 1.1µA for the optional reference. The MAX4036/MAX4038 feature a common-mode input voltage range from 0V to VDD - 0.4V at VDD = 1.4V. The MAX4037/MAX4039 feature a 1.232V voltage reference capable of sourcing 100µA and sinking 20µA. The MAX4036–MAX4039s' rail-to-rail outputs drive 5kΩ loads to within 25mV of the rails. Ultra-low supply current, low operating voltage, and rail-to-rail outputs make the MAX4036–MAX4039 ideal for use in single-cell lithium-ion (Li+), or two-cell NiCd/NiMH/alkaline battery-powered applications. The MAX4036 is available in an SC70 package, the MAX4037 in a SOT23 package, and the MAX4038/MAX4039 in UCSP™, µMAX®, and TDFN packages.

Key Features

Ultra-Low 800nA per Amplifier Supply Current
Ultra-Low 1.4V Supply Voltage Operation (1.8V for MAX4037/MAX4039)
Rail-to-Rail Outputs Drive 5kΩ and 5000pF Load
1.232V ±0.5%, 120ppm/°C (max) Reference (MAX4037/MAX4039)
No External Reference Bypass Capacitor Required
No Phase Reversal for Overdriven Inputs
Low 1.0pA (typ) Input Bias Current
Low 200µV Input Offset Voltage
Unity-Gain Stable
Available in Tiny UCSP, SC70, SOT23, TDFN, and µMAX Packages
Available in -40°C to +125°C Temperature Range (MAX4036A/MAX4038A)

MAX4036, MAX4037, MAX4038, MAX4039: Typical Operating Circuit

Applications/Uses

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Battery-Powered/Solar-Powered Systems
Cellular Handsets
Digital Cameras (DIGICAMs)
Electrometer Amplifiers
Glucose Meters
GPS Solutions
IP Camera
Micropower Thermostats and Potentiostats
MP3 and Portable Media Players
Pagers and Cell Phones
pH Meters
Portable Medical Instrumentation
Remote Sensor Amplifiers

DataSheet

title	Download file
MAX4036-MAX4039 Data Sheet	MAX4036-MAX4039.pdf

Parametrics

Part Number	Amps.	Rail to Rail	V_SUPPLY (Total) (V)	V_SUPPLY (Total) (V)	I_CC per Amp. (µA)	V_OS (µV)	CMRR @DC (dB)	PSRR @DC (dB)	Low Input Bias CMOS Inputs	Input I_BIAS (nA)	Unity Gain BW (MHz)	Slew Rate (V/µs)	e_n (nV/√Hz)	Package/Pins	Budgetary Price
Part Number	Amps.	Rail to Rail	min	max	typ	max	typ	typ	Low Input Bias CMOS Inputs	max	typ	typ	<	Package/Pins	See Notes
MAX4036	1	Output Only	1.4	3.6	0.8	2000	70	82	Yes	0.01	0.004	0.0004	500	SC-70/5	$0.69 @1k
MAX4037	1				1.9			84						SOT/6	$0.93 @1k
MAX4038	2				0.8			82						µMAX/8 TDFN-EP/8 UCSP/9	$1.10 @1k
MAX4039	2				1.4			84						µMAX/10 TDFN-EP/10 UCSP/9	$1.24 @1k

Quality and Environmental Data

MAX4038.pdf

Ordering Information

Part Number	Status	Recommended Replacement	Package	Temp	RoHS
MAX4038AAUA+	Active		µMAX,;8 pin;15.6 mm²	-40°C to +125°C	Lead Free
MAX4038AAUA+T	Active		uMAX;8 pin	-40°C to +125°C	See data sheet
MAX4038EBL+	Active		UCSP,;9 pin;2.5 mm²	-40°C to +85°C	Lead Free
MAX4038EBL+T	Active		UCSP,;9 pin;2.5 mm²	-40°C to +85°C	Lead Free
MAX4038EBL-T	No Longer Available	MAX4038EBL+T	UCSP,;9 pin;2.5 mm²	-40°C to +85°C	No
MAX4038ETA+	Active		TDFN-EP,;8 pin;9.6 mm²	-40°C to +85°C	Lead Free
MAX4038ETA+T	Active		TDFN-EP,;8 pin;9.6 mm²	-40°C to +85°C	Lead Free
MAX4038ETA-T	No Longer Available	MAX4038ETA+T	TDFN-EP,;8 pin;9.6 mm²	-40°C to +85°C	No
MAX4038EUA	No Longer Available	MAX4038EUA+	µMAX,;8 pin;15.6 mm²	-40°C to +85°C	No
MAX4038EUA+	Active		µMAX,;8 pin;15.6 mm²	-40°C to +85°C	Lead Free
Part Number	Status	Recommended Replacement	Package	Temp	RoHS
MAX4038EUA+T	Active		µMAX,;8 pin;15.6 mm²	-40°C to +85°C	Lead Free
MAX4038EUA-T	No Longer Available	MAX4038EUA+T	uMAX;8 pin	-40°C to +85°C	See data sheet

MAX4036-MAX4039.pdf MAX4039

MAX4038.pdf MAX4038

MAX4036-MAX4039.pdf MAX4039