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OPA4277UA Datasheet(PDF) 1 Page - Burr-Brown (TI) |
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OPA4277UA Datasheet(HTML) 1 Page - Burr-Brown (TI) |
1 / 25 page High Precision OPERATIONAL AMPLIFIERS OPA277 OPA2277 OPA4277 SBOS079A – MARCH 1999 – REVISED APRIL 2005 www.ti.com PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 1999-2005, Texas Instruments Incorporated Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. All trademarks are the property of their respective owners. DESCRIPTION The OPA277 series precision op amps replace the industry standard OP-177. They offer improved noise, wider output voltage swing, and are twice as fast with half the quiescent current. Features include ultra low offset voltage and drift, low bias current, high common-mode rejection, and high power supply rejection. Single, dual, and quad versions have identical specifications for maximum design flexibility. OPA277 series op amps operate from ±2V to ±18V supplies with excellent performance. Unlike most op amps which are specified at only one supply voltage, the OPA277 series is specified for real-world applications; a single limit applies over the ±5V to ±15V supply range. High performance is maintained as the amplifiers swing to their specified limits. Because the initial offset voltage ( ±20µV max) is so low, user adjustment is usually not required. However, the single version (OPA277) provides exter- nal trim pins for special applications. OPA277 op amps are easy to use and free from phase inversion and overload problems found in some other op amps. They are stable in unity gain and provide excellent dynamic behavior over a wide range of load conditions. Dual and quad versions feature completely independent circuitry for lowest crosstalk and free- dom from interaction, even when overdriven or overloaded. Single (OPA277) and dual (OPA2277) versions are available in DIP-8, SO-8, and DFN-8 (4mm x 4mm) packages. The quad (OPA4277) comes in DIP-14 and SO-14 surface-mount pack- ages. All are fully specified from –40 °C to +85°C and operate from –55 °C to +125°C. FEATURES q ULTRA LOW OFFSET VOLTAGE: 10 µV q ULTRA LOW DRIFT: ±0.1µV/°C q HIGH OPEN-LOOP GAIN: 134dB q HIGH COMMON-MODE REJECTION: 140dB q HIGH POWER SUPPLY REJECTION: 130dB q LOW BIAS CURRENT: 1nA max q WIDE SUPPLY RANGE: ±2V to ±18V q LOW QUIESCENT CURRENT: 800 µA/amplifier q SINGLE, DUAL, AND QUAD VERSIONS q REPLACES OP-07, OP-77, OP-177 1 2 3 4 5 6 7 14 13 12 11 10 9 8 Out D –In D +In D V– +In C –In C Out C Out A –In A +In A V+ +In B –In B Out B OPA4277 14-Pin DIP, SO-14 AD BC 1 2 3 4 8 7 6 5 V+ Out B –In B +In B Out A –In A +In A V– OPA2277 8-Pin DIP, SO-8 A B APPLICATIONS q TRANSDUCER AMPLIFIER q BRIDGE AMPLIFIER q TEMPERATURE MEASUREMENTS q STRAIN GAGE AMPLIFIER q PRECISION INTEGRATOR q BATTERY POWERED INSTRUMENTS q TEST EQUIPMENT 1 2 3 4 8 7 6 5 Offset Trim V+ Output NC Offset Trim –In +In V– OPA277 8-Pin DIP, SO-8 1 2 3 4 Offset Trim −In +In V − 8 7 6 5 Offset Trim Pin 1 Indicator OPA277AIDRM DFN-8 4mm x 4mm (top view) V+ Output Thermal Pad on Bottom (Connect to V −) NC 1 2 3 4 Out A −In A +In A V − 8 7 6 5 Out B Pin 1 Indicator OPA2277AIDRM DFN-8 4mm x 4mm (top view) V+ −In B Thermal Pad on Bottom (Connect to V −) +In B OPA2 77 OPA2 277 OPA277 OPA2277 OPA42 77 OPA4277 OPA2 277 OPA2 77 NC = No connection. |
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