Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLinear ICsLinear IC - Op-amp Multi-purpose SOIC 8

FEATURES

● Very Low Noise: 8nV/√Hz at 10kHz

● Low V

: 1mV max

● Low Drift: 10µV/°C max

● Low I

: 10pA max

● Fast Settling Time: 2µs to 0.01%

● Unity-Gain Stable

Precision Dual

Difet

Operational Amplifier

OPA2107

DESCRIPTION

The OPA2107 dual

operational amplifier provides precision

Difet

performance with the cost and space savings of a dual

op amp. It is useful in a wide range of precision and low-noise

analog circuitry and can be used to upgrade the performance

of designs currently using BIFET

type amplifiers.

The OPA2107 is fabricated on a proprietary dielectrically

isolated (

Difet

) process. This holds input bias currents to

very low levels without sacrificing other important param-

eters, such as input offset voltage, drift and noise. Laser-

trimmed input circuitry yields excellent dc performance. Su-

perior dynamic performance is achieved, yet quiescent cur-

rent is held to under 2.5mA per amplifier. The OPA2107 is

unity-gain stable.

The OPA2107 is available in DIP-8 and SO-8 packages.

Cascode

–In

(2, 6)

+In

(3, 5)

(8)

Output

(1, 7)

–V

(4)

APPLICATIONS

● Data Acquisition

● DAC Output Amplifiers

● Optoelectronics

● High-Impedance Sensor Amps

● High-Performance Audio Circuitry

● Medical Equipment, CT Scanners

OPA2107

SBOS161A – JANUARY 1989 – REVISED JULY 2003

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.

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.

Summary of content (14 pages)

PAGE 1
OPA2107 OPA 210 7 OPA 210 7 SBOS161A – JANUARY 1989 – REVISED JULY 2003 Precision Dual Difet ® Operational Amplifier FEATURES APPLICATIONS ● ● ● ● ● ● ● ● ● ● ● ● Very Low Noise: 8nV/√Hz at 10kHz Low VOS: 1mV max Low Drift: 10µV/°C max Low IB: 10pA max Fast Settling Time: 2µs to 0.
PAGE 2
ABSOLUTE MAXIMUM RATINGS(1) PIN CONFIGURATION Supply Voltage ................................................................................... ±18V Input Voltage Range ..................................................................... ±VS ±2V Differential Input Voltage ....................................................... Total VS ±4V Operating Temperature P and U Packages ........................................................ –25°C to + 85°C Storage Temperature P and U Packages .................
PAGE 3
ELECTRICAL CHARACTERISTICS At TA = +25°C, VS = ±15V, unless otherwise noted. OPA2107AP, AU PARAMETER CONDITION MIN TYP MAX UNITS 1 2 10 80 0.1 0.5 3 96 mV mV µV/°C dB 4 0.25 1 10 1.
PAGE 4
TYPICAL CHARACTERISTICS TA = +25°C, VS = ±15V unless otherwise noted. INPUT VOLTAGE AND CURRENT NOISE SPECTRAL DENSITY vs FREQUENCY TOTAL INPUT VOLTAGE NOISE SPECTRAL DENSITY at 1kHz vs SOURCE RESISTANCE 100 Current Noise 10 10 1 Current Noise Voltage Noise Voltage Noise, E O (n/V/ Hz) Voltage Noise 100 1k Current Noise (ƒA/ Hz) Voltage Noise (nV/ Hz) 1k EO RS 100 OPA2107 + Resistor 10 Resistor Noise Only 1 0.
PAGE 5
TYPICAL CHARACTERISTICS (Cont.) TA = +25°C, VS = ±15V unless otherwise noted.
PAGE 6
TYPICAL CHARACTERISTICS (Cont.) TA = +25°C, VS = ±15V unless otherwise noted. OPEN-LOOP GAIN vs SUPPLY VOLTAGE 120 140 110 RL = ∞ Voltage Gain (dB) Channel Separation (dB) CHANNEL SEPARATION vs FREQUENCY 150 130 RL = 2k Ω 120 100 90 80 110 70 10 100 1k 10k 100k 5 10 Frequency (Hz) 15 THD + NOISE vs FREQUENCY AND OUTPUT VOLTAGE TOTAL HARMONIC DISTORTION vs FREQUENCY 1 1 A V = +11V/V THD + Noise (%rms) THD + Noise (%rms) 6.5Vrms 2k Ω RS 0.1 A V = +101V/V 0.
PAGE 7
APPLICATIONS INFORMATION AND CIRCUITS –In The OPA2107 is unity-gain stable and has an excellent phase margin. This makes it easy to use in a wide variety of applications. INA105 RF 2 RG 6 3 25kΩ 5 1 1/2 OPA2107 FIGURE 2. FET Input Instrumentation Amplifier. E1 –In 1/2 OPA2107 3 1 A 2 INA106 RF 2 In 3 E2 +In 2 A 3 In A Out A 1 FIGURE 1. Connection of Input Guard.
PAGE 8
PACKAGE OPTION ADDENDUM www.ti.
PAGE 9
PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device OPA2107AU/2K5 Package Package Pins Type Drawing SOIC D 8 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 2500 330.0 12.4 Pack Materials-Page 1 6.4 B0 (mm) K0 (mm) P1 (mm) 5.2 2.1 8.0 W Pin1 (mm) Quadrant 12.
PAGE 10
PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) OPA2107AU/2K5 SOIC D 8 2500 367.0 367.0 35.
PAGE 11
PAGE 12
PAGE 13
PAGE 14
IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46C and to discontinue any product or service per JESD48B. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.