Opa343 cmos operational amplifiers

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OPA

OPA 234 3

434

®

3

OPA343 OPA2343 OPA4343

OPA

434

3

www.ti.com

SINGLE-SUPPLY, RAIL-TO-RAIL OPERATIONAL AMPLIFIERS microAmplifier ™ Series
FEATURES
q q q q q q q RAIL-TO-RAIL INPUT/OUTPUT MICRO SIZE PACKAGES WIDE BANDWIDTH: 5.5MHz HIGH SLEW RATE: 6V/µs LOW THD+NOISE: 0.0007% (f = 1kHz) LOW QUIESCENT CURRENT: 850µA/chan SINGLE, DUAL, AND QUAD VERSIONSAPPLICATIONS
q DRIVING A/D CONVERTERS q PCMCIA CARDS q DATA ACQUISITION q AUDIO PROCESSING q COMMUNICATIONS q ACTIVE FILTERS q TEST EQUIPMENT The OPA343 series operates on a single supply as low as 2.5V, and input common-mode voltage range extends 500mV beyond the supply rails. Output voltage swings to within 1mV of the supply rails with a 100kΩ load. They offer excellent dynamic response (BW = 5.5MHz, SR= 6V/µs), yet quiescent current is only 850µA. Dual and quad designs feature completely independent circuitry for lowest crosstalk and freedom from interaction. The single (OPA343) packages are the tiny SOT-23-5 surface mount and SO-8 surface mount. The dual (OPA2343) comes in the miniature MSOP-8 surface mount and SO-8 surface mount. The quad (OPA4343) packages are the space-saving SSOP-16surface mount, SO-14 surface mount, and TSSOP-14 surface mount. All are specified from –40°C to +85°C and operate from –55°C to +125°C. A SPICE macromodel is available for design analysis.
OPA4343

DESCRIPTION
OPA343 series rail-to-rail CMOS operational amplifiers are designed for low-cost, miniature applications. They are optimized for low-voltage, single-supply operation. Rail-to-railinput/output and high-speed operation make them ideal for driving sampling Analog-to-Digital (A/D) converters. They are also well suited for general-purpose and audio applications as well as providing I/V conversion at the output of Digital-to-Analog (D/A) converters. Single, dual, and quad versions have identical specifications for design flexibility.
OPA343

OPA343
NC –In +In V– 1 2 3 4 SO-8 OPA2343Out A –In A +In A V– 1 2 3 4 SO-8, MSOP-8 A B 8 7 6 5 V+ Out B –In B +In B
Out A –In A +In A V+ +In B –In B Out B 1 2

8 7 6 5

NC

Out 1
V+

5

V+

V– 2
Output

+In 3
NC

4 SOT-23-5

–In
OPA4343 14 13 A 3 4 5 B 6 7 TSSOP-14 C 9 8 –In C Out C Out B NC 7 8 SSOP-16 10 9 Out C NC D 12 11 10 +In D V– +In C +V +In B –In B 4 5 B 6 C 11 –In C 13 12 –V +In C Out D –In D

Out A –In A+In A

1 2 A 3 D

16 15 14

Out D –In D +In D

Copyright © 2000, Texas Instruments Incorporated

SBOS090A

Printed in U.S.A. October, 2000

SPECIFICATIONS: VS = 2.7V to 5.5V
Boldface limits apply over the specified temperature range, TA = –40°C to +85°C. VS = 5V.
At TA = +25°C, RL = 10kΩ connected to VS /2 and VOUT = VS /2, unless otherwise noted. OPA343NA, UA OPA2343EA, UAOPA4343EA, UA, NA PARAMETER OFFSET VOLTAGE Input Offset Voltage vs Temperature vs Power Supply Over Temperature Channel Separation, dc INPUT BIAS CURRENT Input Bias Current Over Temperature Input Offset Current NOISE Input Voltage Noise, f = 0.1 to 50kHz Input Voltage Noise Density, f = 1kHz Current Noise Density, f = 1kHz INPUT VOLTAGE RANGE Common-Mode Voltage Range Common-Mode Rejection Ratio VOSdVOS/dT PSRR CONDITION VS = 5V VS = 2.7V to 5.5V, VCM = 0V VS = 2.7V to 5.5V, VCM = 0V MIN TYP(1) ±2 ±3 40 0.2 IB IOS ±0.2 ±0.2 8 25 3 –0.3 74 60 54 (V+) + 0.3 92 75 70 1013 || 3 1013 || 6 AOL RL = 100kΩ, 5mV < VO < (V+) – 5mV RL = 100kΩ, 5mV < VO < (V+) – 5mV RL = 10kΩ, 50mV < VO < (V+) – 50mV RL = 10kΩ, 50mV < VO < (V+) – 50mV RL = 2kΩ, 200mV < VO < (V+) – 200mV RL = 2kΩ, 200mV < VO < (V+) – 200mVG=1 VS = 5V, G = 1, CL = 100pF VS = 5V, 2V Step, CL = 100pF VS = 5V, 2V Step, CL = 100pF VIN • G = VS VS = 5V, VO = 3Vp-p(2), G = 1, f = 1kHz RL = 100kΩ, AOL ≥ 100dB RL = 100kΩ, AOL ≥ 100dB RL = 10kΩ, AOL ≥ 100dB RL = 10kΩ, AOL ≥ 100dB RL = 2kΩ, AOL ≥ 92dB RL = 2kΩ, AOL ≥ 92dB ISC CLOAD VS IQ IO = 0, VS = +5V IO = 0, VS = +5V –40 –55 –65 2.7 2.5 to 5.5 0.85 100 100 100 100 92 92 120 117 110 ±10...
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