Home Verstärker Operationsverstärker (OpAmps) Präzisionsoperationsverstärker (Vos < 1 mV)

OPA2277

AKTIV

Hochpräziser, energieeffizienter Operationsverstärker mit 10µV, 0,1µV/˚C

Eine neuere Version dieses Produkts ist verfügbar

Drop-In-Ersatz mit gegenüber dem verglichenen Baustein verbesserter Funktionalität.
OPA2205 AKTIV Dualer, rauscharmer, bipolarer Rail-to-Rail-Präzisions-E-trim™-Operationsverstärker mit niedrigem Ei Improved AC performance (3.6 MHz, 3.2 V/µs) at lower power (0.22 mA) implementing e-Trim™ and Super Beta precision technologies

Produktdetails

Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4 Vos (offset voltage at 25°C) (max) (mV) 0.02 Offset drift (typ) (µV/°C) 0.1 Input bias current (max) (pA) 1000 GBW (typ) (MHz) 1 Features Small Size Slew rate (typ) (V/µs) 0.8 Rail-to-rail No Iq per channel (typ) (mA) 0.79 Vn at 1 kHz (typ) (nV√Hz) 8 CMRR (typ) (dB) 140 Rating Catalog Operating temperature range (°C) -40 to 85 Iout (typ) (A) 0.035 Architecture Bipolar Input common mode headroom (to negative supply) (typ) (V) 2 Input common mode headroom (to positive supply) (typ) (V) -2 Output swing headroom (to negative supply) (typ) (V) 0.5 Output swing headroom (to positive supply) (typ) (V) -1.2 THD + N at 1 kHz (typ) (%) 0.002
Number of channels 2 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 36 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4 Vos (offset voltage at 25°C) (max) (mV) 0.02 Offset drift (typ) (µV/°C) 0.1 Input bias current (max) (pA) 1000 GBW (typ) (MHz) 1 Features Small Size Slew rate (typ) (V/µs) 0.8 Rail-to-rail No Iq per channel (typ) (mA) 0.79 Vn at 1 kHz (typ) (nV√Hz) 8 CMRR (typ) (dB) 140 Rating Catalog Operating temperature range (°C) -40 to 85 Iout (typ) (A) 0.035 Architecture Bipolar Input common mode headroom (to negative supply) (typ) (V) 2 Input common mode headroom (to positive supply) (typ) (V) -2 Output swing headroom (to negative supply) (typ) (V) 0.5 Output swing headroom (to positive supply) (typ) (V) -1.2 THD + N at 1 kHz (typ) (%) 0.002
PDIP (P) 8 92.5083 mm² (9.81 mm × 9.43 mm) VSON (DRM) 8 16 mm² (4 mm × 4 mm) SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm)
  • Ultra-low offset voltage: 10 µV
  • Ultra-low drift: ±0.1 µV/°C
  • High open-loop gain: 134 dB
  • High common-mode rejection: 140 dB
  • High power-supply rejection: 130 dB
  • Low bias current: 1-nA maximum
  • Wide supply range: ±2 V to ±18 V
  • Low quiescent current: 800 µA/amplifier
  • Single, dual, and quad versions
  • Replaces OP-07, OP-77, and OP-177
  • For similar performance with ±40-V overvoltage protection, see the OPA2206
  • Ultra-low offset voltage: 10 µV
  • Ultra-low drift: ±0.1 µV/°C
  • High open-loop gain: 134 dB
  • High common-mode rejection: 140 dB
  • High power-supply rejection: 130 dB
  • Low bias current: 1-nA maximum
  • Wide supply range: ±2 V to ±18 V
  • Low quiescent current: 800 µA/amplifier
  • Single, dual, and quad versions
  • Replaces OP-07, OP-77, and OP-177
  • For similar performance with ±40-V overvoltage protection, see the OPA2206

The OPAx277 series of precision operational amplifiers replace the industry standard OP-177. The OPAx277 devices 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.

The OPAx277 operate from ±2-V to ±18-V supplies with excellent performance. Unlike most op amps that are specified at only one supply voltage, the OPAx277 series is specified for real-world applications; a single limit applies over the ±5-V (10-V) to ±15-V (30-V) supply range. High performance is maintained as the amplifiers swing to the specified limits. Because the initial offset voltage (±20 µV, maximum) is so low, user adjustment is usually not required. However, the single version (OPA277) provides external trim pins for special applications.

The OPAx277 are easy to use and free from phase inversion and the overload problems found in some other op amps. These devices are unity-gain stable and provide excellent dynamic behavior over a wide range of load conditions. Dual and quad versions feature completely independent circuitry for lowest crosstalk and freedom from interaction, even when overdriven or overloaded.

The OPAx277 series of precision operational amplifiers replace the industry standard OP-177. The OPAx277 devices 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.

The OPAx277 operate from ±2-V to ±18-V supplies with excellent performance. Unlike most op amps that are specified at only one supply voltage, the OPAx277 series is specified for real-world applications; a single limit applies over the ±5-V (10-V) to ±15-V (30-V) supply range. High performance is maintained as the amplifiers swing to the specified limits. Because the initial offset voltage (±20 µV, maximum) is so low, user adjustment is usually not required. However, the single version (OPA277) provides external trim pins for special applications.

The OPAx277 are easy to use and free from phase inversion and the overload problems found in some other op amps. These devices are unity-gain stable and provide excellent dynamic behavior over a wide range of load conditions. Dual and quad versions feature completely independent circuitry for lowest crosstalk and freedom from interaction, even when overdriven or overloaded.

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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt OPAx277 High-Precision Operational Amplifiers datasheet (Rev. C) PDF | HTML 21.02.2023
Anwendungshinweis Impact of Current Noise in CMOS and JFET Amplifiers PDF | HTML 04.05.2023
E-book The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML 28.03.2017
Anwendungshinweis High-Voltage Signal Conditioning for Low-Voltage ADCs (Rev. B) PDF | HTML 18.05.2015
Anwendungshinweis OPA277, OPA2277, OPA4277 EMI Immunity Performance (Rev. A) 31.10.2012
Anwendungshinweis Precision Absolute Value Circuits 02.10.2000

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