OPA2234UE4中文资料

时间：2025-04-26

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OPA234

OPA2

OPA

2234

OPA

423

OPA234OPA2234OPA4234

SBOS055A – MAY 1996 – REVISED JUNE 2004

Low-Power, Precision

SINGLE-SUPPLY OPERATIONAL AMPLIFIERS

FEATURES

q WIDE SUPPLY RANGE:

Single Supply: VS = +2.7V to +36VDual Supply: VS = ±1.35V to ±18Vq SPECIFIED PERFORMANCE:+2.7V, +5V, and ±15V

q LOW QUIESCENT CURRENT: 250µA/ampq LOW INPUT BIAS CURRENT: 25nA maxq LOW OFFSET VOLTAGE: 100µV maxq HIGH CMRR, PSRR, and AOL

qSINGLE, DUAL, and QUAD VERSIONS

Offset Trim

–In+InV–

1234

SO-8, MSOP-8OPA234

8765

NCV+OutputOffset Trim

DESCRIPTION

The OPA234 series low-cost op amps are ideal forsingle-supply, low-voltage, low-power applications. Theseries provides lower quiescent current than older“1013”-type products and comes in current industry-standard packages and pinouts. The combination oflow offset voltage, high common-mode rejection, highpower-supply rejection, and a wide supply range pro-vides excellent accuracy and versatility. Single, dual,and quad versions have identical specifications formaximum design flexibility. These general-purpose opamps are ideal for portable and battery-powered appli-cations.

The OPA234 series op amps operate from either singleor dual supplies. In single-supply operation, the inputcommon-mode range extends below ground and theoutput can swing to within 50mV of ground. Excellentphase margin makes the OPA234 series ideal for de-manding applications, including high load capacitance.Dual and quad designs feature completely indepen-dent circuitry for lowest crosstalk and freedom frominteraction.

Single version packages are in an SO-8 surface-mountand a space-saving MSOP-8 surface-mount. Dual pack-ages are in an SO-8 surface-mount. Quad packagesare in an SO-14 surface-mount. All are specified for–40°C to +85°C operation.

Out A–In A+In AV–

1234

OPA2234

765

SO-8

V+Out B–In B+In B

OPA4234

Out A–In A+In AV++In B–In BOut B

12345

SO-14

–In COut C

1413121110

Out D–In D+In DV–+In C

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications ofTexas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

ELECTRICAL CHARACTERISTICS: VS = +5V

At TA = 25°C, VS = +5V, RL = 10k connected to VS/2, and VOUT = VS/2, unless otherwise noted.

OPA234UA, EAOPA2234UAOPA4234UA, U

MAX±100±150±310

MIN

TYP

(V+) –1

106107 || 51010 || 6

10886

12096 860.350.2152516

(V+) –10.25(V+) –10.1

(V+) –0.650.05(V+) –0.650.05±111000

+2.7

IO = 0

–40–40–55

250

+36300+85+125+125

10015022080110

100

MAX±250±350 20

UNITSµVµVµV/°CµV/VµV/moµV/VnAnAnV/fA/√VdB || pF || pFdB

OPA234U, EOPA2234U

PARAMETER

OFFSET VOLTAGEInput Offset VoltageOPA234E, EA

vs Temperature(1)vs Power Supplyvs Time

Channel Separation (Dual, Quad)INPUT BIAS CURRENTInput Bias Current(2)Input Offset CurrentNOISE

Input Voltage Noise DensityCurrent Noise Density

INPUT VOLTAGE RANGECommon-Mode Voltage RangeCommon-Mode RejectionINPUT IMPEDANCEDifferential

Common-Mode

OPEN-LOOP GAIN

Open-Loop Voltage GainFREQUENCY RESPONSEGain-Bandwidth ProductSlew Rate

Settling Time: 0.1%

0.01%

Overload Recovery Time

AOLVOSdVOS/dTPSRR

CONDITIONVCM = 2.5V

Operating Temperature RangeVS = +2.7V to +30V, VCM = 1.7V

MIN

TYP±40±100±0.530.20.3–15±12580

–0.191

IBIOSvnin

VCM = 2.5VVCM = 2.5Vf = 1kHz

–30±5–50

CMRR

VCM = –0.1V to 4V

VCM = 2.5VVO = 0.25V to 4V

RL = 10k RL = 2k CL = 100pF

G = 1, 3V Step, CL = 100pFG = 1, 3V Step, CL = 100pF

(VIN) (Gain) = VS

RL = 10k to VS/2RL = 10k to VS/2RL = 10k to GroundRL = 10k to Ground

G = +1

GBWSR

MHzV/µsµsµsµsVVVVmApFVVµA°C°C°C°C/W°C/W°C/W°C/W°C/W

OUTPUT

Voltage Output: Positive

NegativePositiveNegative

Short-Circuit CurrentISC

(3)Capacitive Load Drive (Stable Operation)POWER SUPPLY

Specified Operating VoltageOperating Voltage Range

Quiescent Current (per amplifier)TEMPERATURE RANGESpecified RangeOperating RangeStorage

Thermal Resistance8-Pin DIP

SO-8 Surface-MountMSOP-8 Surface-Mount14-Pin DIP

SO-14 Surface-Mount

Specifications same as OPA234U, E.

θJA

NOTES: (1) Wafer-level tested to 95% confidence level. (2) Positive conventional current flows into the input terminals. (3) See Small-Signal Overshoot vs LoadCapacitance typical curve.

ELECTRICAL CHARACTERISTICS: VS = +2.7V

At TA = 25°C, VS = +2.7V, RL = 10k connected to VS/2, and VOUT = VS/2, unless otherwise noted.