OPA365

Manufacturer Part NumberOPA365
ManufacturerTexas Instruments
OPA365 datasheet
 


Specifications of OPA365

Number Of Channels1Total Supply Voltage(min)(+5v=5, +/-5v=10)2.2
Total Supply Voltage(max)(+5v=5, +/-5v=10)5.5Iq Per Channel(max)(ma)5
Gbw(typ)(mhz)50Slew Rate(typ)(v/us)25
Vio (25c)(max)(mv)0.2Offset Drift(typ)(uv/c)1
Vn At 1khz(typ)(nv/rthz)13Iib(max)(pa)10
Cmrr(min)(db)100Rail-railIn/Out
Pin/package5SOT-23, 8SOIC  
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50MHz, Low-Distortion, High CMRR,
RRI/O, Single-Supply
OPERATIONAL AMPLIFIER
FEATURES
D
GAIN BANDWIDTH: 50MHz
D
ZERO−CROSSOVER DISTORTION TOPOLOGY:
− Excellent THD+N: 0.0004%
− CMRR: 100dB (min)
− Rail-to-Rail Input and Output
− Input 100mV Beyond Supply Rail
D
LOW NOISE: 4.5nV//Hz at 100kHz
D
SLEW RATE: 25V/µs
D
FAST SETTLING: 0.3µs to 0.01%
D
PRECISION:
− Low Offset: 100µV
− Low Input Bias Current: 0.2pA
D
2.2V TO 5.5V OPERATION
APPLICATIONS
D
SIGNAL CONDITIONING
D
DATA ACQUISITION
D
PROCESS CONTROL
D
ACTIVE FILTERS
D
TEST EQUIPMENT
D
AUDIO
D
WIDEBAND AMPLIFIERS
OPA365
V
IN
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.
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.
DESCRIPTION
The OPAx365 zer
performance, CMOS operational amplifiers are opti-
mized for very low voltage, single-supply applications.
Rail-to-rail input/output, low-noise (4.5nV/√Hz) and
high-speed operation (50MHz Gain Bandwidth) make
these devices ideal for driving sampling analog-to-digi-
tal converters (ADCs). Applications incude audio, sig-
nal conditioning, and sensor amplification. The OPA365
family of op amps are also well-suited for cell phone
power amplifier control loops.
Special features include an excellent common-mode
rejection ratio (CMRR), no input stage crossover distor-
tion, high input impedance, and rail-to-rail input and out-
put swing. The input common-mode range includes
both the negative and positive supplies. The output volt-
age swing is within 10mV of the rails.
The OPA365 (single version) is available in the micro-
SIZE SOT23-5 and SO-8 packages. The OPA2365
(dual version) is offered in the SO-8 package. All ver-
sions are specified for operation from −40°C to +125°C.
Single and dual versions have identical specifications
for maximum design flexibility.
R
2
2kΩ
C
2
2.2pF
V−
V−
SD1
BAT17
U1
OPA365
R
1
7.5Ω
V+
C
V+
1
10nF
Fast Settling Peak Detector
Copyright  2006−2009, Texas Instruments Incorporated
www.ti.com
OPA365
OPA2365
SBOS365D − JUNE 2006 − REVISED JUNE 2009
-crossover series, rail-to-rail, high-
U2
V
OUT

OPA365 Summary of contents

  • Page 1

    ... The input common-mode range includes both the negative and positive supplies. The output volt- age swing is within 10mV of the rails. The OPA365 (single version) is available in the micro- SIZE SOT23-5 and SO-8 packages. The OPA2365 (dual version) is offered in the SO-8 package. All ver- sions are specified for operation from − ...

  • Page 2

    ... OPA365 OPA365 OPA365 OPA2365 OPA2365 OPA2365 OPA2365 (1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI web site at www.ti.com. PIN CONFIGURATIONS Top View OPA365 OUT V− 2 −IN + SOT23− ...

  • Page 3

    ... 600Ω + 1kHz 10kΩ 5. 1MHz OPA365 OPA2365 SBOS365D − JUNE 2006 − REVISED JUNE 2009 OPAx365 MIN TYP MAX UNIT µV 100 200 µV/°C 1 µV/V 10 100 µV/V 0.2 ±0.2 ±10 ...

  • Page 4

    ... OPA365 OPA2365 SBOS365D − JUNE 2006 − REVISED JUNE 2009 TYPICAL CHARACTERISTICS +25° +5V, and C = 0pF, unless otherwise noted OPEN−LOOP GAIN/PHASE vs FREQUENCY 140 120 100 Phase Gain 20 0 −20 10 100 1k 10k 100k Frequency (Hz) OFFSET VOLTAGE PRODUCTION DISTRIBUTION ...

  • Page 5

    ... TYPICAL CHARACTERISTICS (continued +25° +5V, and C = 0pF, unless otherwise noted OPA365 OUTPUT VOLTAGE vs OUTPUT CURRENT −40_ C 0 +125 _ C +25_ C +125 _ C −1 −2 − Output Current (mA) SHORT−CIRCUIT CURRENT vs TEMPERATURE 70 60 ...

  • Page 6

    ... OPA365 OPA2365 SBOS365D − JUNE 2006 − REVISED JUNE 2009 TYPICAL CHARACTERISTICS (continued +25° +5V, and C = 0pF, unless otherwise noted TOTAL HARMONIC DISTORTION + NOISE vs FREQUENCY 0.01 = 600 Ω 10 0.001 600Ω L 0.0001 10 100 1k Frequency (Hz) OVERSHOOT vs CAPACITIVE LOAD ...

  • Page 7

    ... TYPICAL CHARACTERISTICS (continued +25° +5V, and C = 0pF, unless otherwise noted LARGE−SIGNAL STEP RESPONSE 600Ω ± 2 Time (250ns/div) OPA365 OPA2365 SBOS365D − JUNE 2006 − REVISED JUNE 2009 7 ...

  • Page 8

    ... Typical Characteris- tics. GENERAL LAYOUT GUIDELINES The OPA365 is a wideband amplifier. To realize the full operational performance of the device, good high-fre- quency printed circuit board (PCB) layout practices are required. Low-loss, 0.1µF bypass capacitors must be connected between each supply pin and ground as close to the device as possible ...

  • Page 9

    ... This topology also allows the OPA365 to provide superi- or common-mode performance over the entire input range, which extends 100mV beyond both power-sup- ply rails, as shown in Figure 4. When driving ADCs, the ...

  • Page 10

    ... When operating in the unity-gain configuration, the OPA365 remains stable with a pure capacitive load up to approximately 1nF. The equivalent series resistance (ESR) of some very large capacitors (C cient to alter the phase characteristics in the feedback loop such that the amplifier remains stable ...

  • Page 11

    ... CMOS output stage. When a pull-down resistor is connected from the ampli- fier output to a negative voltage source, the OPA365 can achieve an output level of 0V, and even a few milli- volts below 0V. Below this limit, nonlinearity and limiting conditions become evident ...

  • Page 12

    ... ADC minus full-scale input level. The 0V level is achieved by powering the OPA365 V− pin with a small negative volt- age established by the diode forward voltage drop. A small, signal-switching diode or Schottky diode provides a suitable negative supply voltage of − ...

  • Page 13

    ... V+ ( 100Ω −IN OPA365 ( +IN V− 1nF +2.5V 480kΩ Figure 11. Driving the ADS8361 OPA365 OPA2365 SBOS365D − JUNE 2006 − REVISED JUNE 2009 and included be and C val +5V ADS8361 16−Bit 100kSPS REF OUT REF 20kΩ ...

  • Page 14

    ... OPA365 OPA2365 SBOS365D − JUNE 2006 − REVISED JUNE 2009 Figure 12 illustrates the OPA2365 dual op amp provid- ing signal conditioning within an ADS1258 bridge sen- sor circuit. It follows the ADS1258 16:1 multiplexer and is connected as a differential in/differential out amplifier. The voltage gain for this stage is approximately 10V/V. ...

  • Page 15

    DATE REV PAGE SECTION 6/09 6/ Front Page Front Page NOTE : Page numbers for previous revisions may differ from page numbers in the current version. SBOS365D − JUNE 2006 − REVISED JUNE 2009 Revision ...

  • Page 16

    ... OPA365AIDBVR ACTIVE SOT-23 OPA365AIDBVRG4 ACTIVE SOT-23 OPA365AIDBVT ACTIVE SOT-23 OPA365AIDBVTG4 ACTIVE SOT-23 OPA365AIDG4 ACTIVE SOIC OPA365AIDR ACTIVE SOIC OPA365AIDRG4 ACTIVE SOIC (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. ...

  • Page 17

    ... TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold Customer on an annual basis. OTHER QUALIFIED VERSIONS OF OPA365 : Automotive: OPA365-Q1 • ...

  • Page 18

    ... TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Type Drawing OPA2365AIDR SOIC OPA365AIDBVR SOT-23 DBV OPA365AIDBVT SOT-23 DBV OPA365AIDR SOIC PACKAGE MATERIALS INFORMATION Pins SPQ Reel Reel Diameter Width (mm) W1 (mm 2500 330.0 12.4 5 3000 178.0 9.0 5 250 178 ...

  • Page 19

    ... Device Package Type OPA2365AIDR SOIC OPA365AIDBVR SOT-23 OPA365AIDBVT SOT-23 OPA365AIDR SOIC PACKAGE MATERIALS INFORMATION Package Drawing Pins SPQ Length (mm 2500 DBV 5 3000 DBV 5 250 D 8 2500 Pack Materials-Page 2 12-Aug-2011 Width (mm) Height (mm) 346.0 346.0 29.0 180.0 180 ...

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  • Page 24

    ... Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’ ...