Burr Brown OPA2349EA, OPA2349UA, OPA349NA-3K, OPA349NA, OPA349UA-2K5 Datasheet

1µA, Rail-to-Rail, CMOS

OPERATIONAL AMPLIFIERS

FEA TURES

● LOW SUPPLY CURRENT: 1µA

● GAIN-BANDWIDTH: 70kHz

● UNITY GAIN STABLE

● LOW INPUT BIAS CURRENT: 10pA

● WIDE SUPPLY RANGE: 1.8V to 5.5V

● INPUT RANGE 200mV BEYOND RAILS

● OUTPUT SWINGS TO 150mV OF RAILS

● OUTPUT DRIVE CURRENT: 20mA

● OPEN-LOOP GAIN: 90dB

● SOT23

Micro

PACKAGES

APPLICATIONS

● BATTERY PACKS AND POWER SUPPLIES

● PORTABLE PHONES/PAGERS/CAMERAS

● SOLAR-POWERED SYSTEMS

● SMOKE/GAS/FIRE DETECTION SYSTEMS

● REMOTE SENSORS

● PCMCIA CARDS

● DRIVING A/D CONVERTERS

●

Micro

POWER FILTERS

DESCRIPTION

The OPA349 and OPA2349 are ultra-low power op­erational amplifiers that provide 70kHz bandwidth
with only 1µA quiescent current. These rail-to-rail
input and output amplifiers are specifically designed
for battery powered applications. Unlike some
micropower op amps, these parts are unity-gain stable
and require no external compensation. The OPA349’s
low input bias current allows the use of large source
and feedback resistors. The input common-mode volt­age range extends 200mV beyond the power supply
rails and the output swings to within 150mV of the
rails, maintaining wide dynamic range.

OPA349 can be operated with power supplies from

1.8V to 5.5V with little change in performance, guar­anteeing continuing superior performance even in low
battery situations.

OPA349 comes in the miniature SOT23-5, SO-8 sur­face mount and PDIP-8

(1)

packages. OPA2349 dual is
also available in the SOT23 (8-lead SOT23-8), as well
as the SO-8 surface mount packages. These tiny pack­ages are ideal for use in high-density applications,
such as PCMCIA cards, battery packs and portable
instruments.

All models are specified for the commercial tempera­ture range, 0°C to +70°C.

®

OPA349

OPA2349

© 2000 Burr-Brown Corporation PDS-1568A Printed in U.S.A. June, 2000

International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: [phone]

Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: [phone] • Immediate Product Info: [phone]

For most current data sheet and other product

information, visit www.burr-brown.com

1
2
3

5

4

V+

–In

Out

V–

+In

OPA349

SOT23-5

1
2
3
4

8
7
6
5

NC
V+
Out
NC

NC
–In
+In

V–

OPA349

SO-8, PDIP-8

(1)

NOTE: (1) Available Q4 2000.

1
2
3
4

8
7
6
5

V+
Out B
–In B
+In B

Out A

–In A
+In A

V–

OPA2349

SOT23-8, SO-8

OPA349

OPA349

OPA2349

2

OPA349

®

PARAMETER CONDITION MIN TYP MAX UNITS
OFFSET VOLTAGE

Input Offset Voltage V

OS

VS = 5V, VCM = 2.5V ±2 ±10 mV

Drift dV

OS

/dT ±10 µV/°C

vs Power Supply PSRR V

S

= 1.8V to 5.5V, VCM = (V–) + 0.3V 350 1000 µV/V

Channel Separation, dc (Dual version) R

L

= 100kΩ 10 µV/V

INPUT VOLTAGE RANGE

Common-Mode Voltage Range V

CM

(V–) – 0.2 (V+) + 0.2 V

Common-Mode Rejection Ratio CMRR V

S

= +5V, –0.2V < VCM < 3.5V 52 72 dB

V

S

= +5V, –0.2V < VCM < 5.2V 48 60 dB

INPUT BIAS CURRENT

Input Bias Current I

B

±1 ±10 pA

Input Offset Current I

OS

±1 ±10 pA

INPUT IMPEDANCE

Differential 10

13

|| 2 Ω || pF

Common-Mode 10

13

|| 4 Ω || pF

NOISE

Input Voltage Noise, f = 0.1Hz to 10Hz 8 µVp-p
Input Voltage Noise Density, f = 1kHz e

n

300 nV/√Hz

Current Noise Density, f = 1kHz i

n

4 fA/√Hz

OPEN-LOOP GAIN

Open-Loop Voltage Gain

RL = 1MΩ, VS = +5.5V, +0.3V < VO < +5.2V

74 90 dB

Open-Loop Voltage Gain A

OLRL

= 10kΩ, VS = +5.5V, +0.35V < VO < +5.15V

74 90 dB

OUTPUT

Voltage Output Swing from Rail R

L

= 1MΩ, VS = +5.5V, AOL > 74dB 150 300 mV

R

L

= 10kΩ, VS = +5.5V, AOL > 74dB 200 350 mV
Output Current ±8mA
Short-Circuit Current I

SC

±25 mA

FREQUENCY RESPONSE C

L

= 10pF
Gain-Bandwidth Product GBW G = +1 70 kHz
Slew Rate SR V

S

= +5V, G = +1 0.02 V/µs

Settling Time, 0.1% t

S

VS = 5V, 1V Step 65 µs

0.01% V

S

= 5V, 1V Step 80 µs

Overload Recovery Time V

IN

• Gain = V

S

5 µs

POWER SUPPLY

Specified Voltage Range V

S

1.8 5.5 V
Operating Voltage Range 1.8 5.5 V
Quiescent Current (per amplifier) I

Q

IO = 0 1 2 µA

TEMPERATURE RANGE

Specified Range 0 +70 °C
Storage Range –65 +150 °C
Thermal Resistance

θ

JA

°C/W
SOT23-5 Surface Mount 200 °C/W
SOT23-8 Surface Mount 200 °C/W
SO-8 Surface Mount 150 °C/W
PDIP-8 100 °C/W

OPA349NA, UA, PA

OPA2349EA, UA

SPECIFICATIONS: VS = +1.8V to +5.5V

Boldface limits apply over the specified temperature range, TA = 0°C to +70°C

At TA = +25°C, RL = 1MΩ connected to VS/2, unless otherwise noted.

The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes no responsibility
for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change without notice. No patent rights or
licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant any BURR-BROWN product for use in life support
devices and/or systems.

3

®

OPA349

Supply Voltage, V+ to V– ................................................................... 5.5V

Signal Input Terminals, Voltage

(2)

.................. (V–) – 0.5V to (V+) + 0.5V

Current

(2)

.................................................... 10mA

Output Short Circuit

(3)

.............................................................. Continuous

Operating Temperature .................................................. –55°C to +125°C

Storage Temperature .....................................................–65°C to +150°C

Junction Temperature ...................................................................... 150°C

Lead Temperature (soldering, 3s) ................................................... 300°C

NOTES: (1) Stresses above these ratings may cause permanent damage.
Exposure to absolute maximum conditions for extended periods may de­grade device reliability. These are stress ratings only, and functional opera­tion of the device at these, or any other conditions beyond those specified,
is not implied. (2) Input terminals are diode-clamped to the power supply
rails. Input signals that can swing more than 0.5V beyond the supply rails
should be current-limited to 10mA or less. (3) Short circuit to ground, one
amplifier per package.

ABSOLUTE MAXIMUM RATINGS

(1)

ELECTROSTATIC
DISCHARGE SENSITIVITY

This integrated circuit can be damaged by ESD. Burr-Brown
recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling
and installation procedures can cause damage.

ESD damage can range from subtle performance degrada­tion to complete device failure. Precision integrated circuits
may be more susceptible to damage because very small
parametric changes could cause the device not to meet its
published specifications.

PACKAGE/ORDERING INFORMATION

PACKAGE SPECIFIED
DRAWING TEMPERATURE PACKAGE ORDERING TRANSPORT

PRODUCT PACKAGE NUMBER RANGE MARKING NUMBER

(1)

MEDIA

Single

OPA349NA SOT23-5 331 0°C to +70°C A49 OPA349NA/ 250 Tape and Reel

"""""OPA349NA/3K Tape and Reel

OPA349UA SO-8 182 0°C to +70°C OPA349UA OPA349UA Rails

"""""OPA349UA/2K5 Tape and Reel

OPA349PA

(2)

PDIP-8 006 0 °C to +70°C OPA349PA OPA349PA Rails

Dual

OPA2349EA SOT23-8 348 0°C to +70°C C49 OPA2349EA/250 Tape and Reel

"""""OPA2349EA/3K Tape and Reel

OPA2349UA SO-8 182 0°C to +70°C OPA2349UA OPA2349UA Rails

"""""OPA2349UA/2K5 Tape and Reel

NOTE: (1) Models with a slash (/) are available only in Tape and Reel in the quantities indicated (e.g., /3K indicates 3000 devices per reel). Ordering 3000 pieces of
“OPA2349EA/3K” will get a single 3000-piece Tape and Reel. (2) OPA349PA (DIP) available Q4 2000.