OP176 Analog Devices, OP176 Datasheet

no-image

OP176

Manufacturer Part Number
OP176
Description
Bipolar/JFET, Audio Operational Amplifier
Manufacturer
Analog Devices
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
OP176G
Manufacturer:
AD
Quantity:
5 510
Part Number:
OP176G
Manufacturer:
MITSUBISHI
Quantity:
5 510
Part Number:
OP176G
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Part Number:
OP176GP
Manufacturer:
a
Quantity:
4
Part Number:
OP176GS
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Part Number:
OP176GSZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
a
GENERAL DESCRIPTION
The OP176 is a low noise, high output drive op amp that
features the Butler Amplifier front-end. This new front-end
design combines both bipolar and JFET transistors to attain
amplifiers with the accuracy and low noise performance of
bipolar transistors, and the speed and sound quality of JFETs.
Total Harmonic Distortion plus Noise equals previous audio
amplifiers, but at much lower supply currents.
Improved dc performance is also provided with bias and offset
currents greatly reduced over purely bipolar designs. Input
offset voltage is guaranteed at 1 mV and is typically less than
*Protected by U.S. Patent No. 5101126.
REV. 0
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
FEATURES
Low Noise: 6 nV/ Hz
High Slew Rate: 25 V/ s
Wide Bandwidth: 10 MHz
Low Supply Current: 2.5 mA
Low Offset Voltage: 1 mV
Unity Gain Stable
SO-8 Package
APPLICATIONS
Line Driver
Active Filters
Fast Amplifiers
Integrators
JB1
Z1
CB1
QB4
QB1
QB2
RB1
RB2
QB3
CC1
2
R1A
R1L
J1
Q3
R1P2
Q1
RB4
RB3
R1P1
QB5
1
R1S
Z2
Q5
QB8
Simplified Schematic
R2S
QB6
RB5
5
Q2
R2P1
R2P2
Q4
200 V. This allows the OP176 to be used in many dc coupled
or summing applications without the need for special selections
or the added noise of additional offset adjustment circuitry.
The output is capable of driving 600
maintaining low distortion. THD + Noise at 3 V rms is a low
0.0006%.
The OP176 is specified over the extended industrial (–40 C to
+85 C) temperature range. OP176s are available in both plastic
DIP and SO-8 packages. SO-8 packages are available in 2500
piece reels. Many audio amplifiers are not offered in SO-8
surface mount packages for a variety of reasons, however, the
OP176 was designed so that it would offer full performance in
surface mount packaging.
One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A.
Tel: 617/329-4700
RB7
8-Lead Narrow-Body SO
J2
R2A
R2L
NULL
QS3
+IN
–IN
V–
3
Audio Operational Amplifier
2
3
1
4
(S Suffix)
OP176
QB9
Q6
R3
CCB
CF
PIN CONNECTIONS
7
8
6
5
V+
NC
OUT
NULL
Q8
Q9
Q7
QB7
RB6
R4
CC2
NULL
–IN
+IN
V–
7
4
Q10
Q11
8-Lead Epoxy DIP
RS1
Bipolar/JFET,
1
2
3
4
loads to 10 V rms while
(P Suffix)
OP-482
OP176
QS1
OP176*
QS2
RS2
R5
Fax: 617/326-8703
6
7
5
8
6
V+
OUT
NULL
NC

Related parts for OP176

OP176 Summary of contents

Page 1

... V– 4 200 V. This allows the OP176 to be used in many dc coupled or summing applications without the need for special selections or the added noise of additional offset adjustment circuitry. The output is capable of driving 600 maintaining low distortion. THD + Noise rms is a low 0.0006%. ...

Page 2

... OP176–SPECIFICATIONS ELECTRICAL CHARACTERISTICS Parameter INPUT CHARACTERISTICS Offset Voltage Offset Voltage Input Bias Current Input Offset Current Input Voltage Range Common-Mode Rejection Large Signal Voltage Gain Offset Voltage Drift OUTPUT CHARACTERISTICS Output Voltage Swing Output Short Circuit Current POWER SUPPLY Power Supply Rejection Ratio ...

Page 3

... V Output Short-Circuit Duration to GND . . . . . . . . . . Indefinite Storage Temperature Range P, S Package . . . . . . . . . . . . . . . . . . . . . . . . – +150 C Operating Temperature Range OP176G . . . . . . . . . . . . . . . . . . . . . . . . . . . . – +85 C Junction Temperature Range P, S Package . . . . . . . . . . . . . . . . . . . . . . . . – +150 C Lead Temperature Range (Soldering, 60 sec +300 C 3 ...

Page 4

... OP176–Typical Characteristics 120 100 80 BASED ON 300 OP AMPS – V/° Figure 1. Input Offset Voltage Drift Distribution @ 18V 18V, – 600 15V 15V, – 15V 15V, – 600 –50 – TEMPERATURE – °C Figure 2. Output Swing vs. Temperature 300 250 200 150 100 ...

Page 5

... Figure 11. Open-Loop Gain vs. Temperature +25° ±15V 10M 100M 100 Figure 12. Closed-Loop Output Impedance vs. Frequency –5– OP176 T = +25°C A +PSRR V = 15V S –PSRR 1k 10k 100k FREQUENCY – 15V 10V O –GAIN +GAIN –GAIN 600 ...

Page 6

... OP176 140 120 100 100 1k 10k FRERQUENCY – Hz Figure 13. Common-Mode Rejection vs. Frequency 100 V = 15V NEGATIVE SWING V = 100mVp POSITIVE SWING 100 200 300 400 500 600 LOAD CAPACITANCE – pF Figure 14. Small Signal Overshoot vs. Load Capacitance ±15V +25° SR+ AND SR– 0.4 0.8 1.2 DIFFERENTIAL INPUT VOLTAGE – ...

Page 7

... TIME –100ns/DIV Figure 20. Small Signal Transient Response REV. 0 2.5 2.0 1.5 1.0 0 10k Figure 21. Current Noise Density vs. Frequency V OUT (5V/DIV) 100nS Figure 22. Large Signal Transient Response –7– OP176 V = ±15V +25°C A 100 1k FREQUENCY – Hz 100 500nS 5V TIME – 500ns/DIV 10k ...

Page 8

... Figure 25. THD + Noise vs. Output Amplitude (V rms) The output of the OP176 is designed to maintain low harmonic distortion while driving 600 loads with very high output swings results in higher distortion if clipping occurs. To attain low harmonic distortion with large output swings, supply voltages may be increased. Figure 26 shows the perfor- mance of the OP176 driving 600 varying from 18 volts to 20 volts ...

Page 9

... Noise The voltage noise density of the OP176 is below 6 nV/ Hz from 30 Hz. This enables low noise designs to have good perfor- mance throughout the full audio range. Figure 27 shows a typical OP176 with a 1/f corner 80.0 µV FS MKR: 15.9 µ MKR: 5.4 Hz BW: Figure 27 ...

Page 10

... This recovery time is impor- tant in applications where the amplifier must recover quickly after a large abnormal transient event. The circuit shown in Figure 32 was used to evaluate the OP176’s overload recovery time. The OP176 takes approximately recover to V +10 V and approximately 900 ns to recover ...

Page 11

... For capacitive loads greater than 400 pF, overshoot exceeds 40% and is roughly equivalent phase margin. If the applica- tion requires the OP176 to drive loads larger than 400 pF, then external compensation should be used. Figure 37 shows a simple circuit which uses an in-the-loop compensation technique that allows the OP176 to drive any capacitive load ...

Page 12

... However, rated only for higher loads, this makes driving 600 loads somewhat limited with the SSM2017 alone. A pair of OP176s are used in the circuit as a high current output buffer (U2) and a DC servo stage (U3). The OP176’s high output current drive capability ...

Page 13

... OS the dc performance of this circuit is quite good and will not compromise voltage reference accuracy and/or drift. Also, the OP176 has a typical current limit can provide higher output currents when compared to a typical IC reference alone. REV Differential ADC Driver ...

Page 14

... R3 several reasons: One, at audio frequencies, using an amplifier with a 10 MHz bandwidth such as the OP176, these filters 34 dB), exhibit reasonably low sensitivities for unity gain and high damping (low Q). Second, as voltage followers, they are also inherently gain accurate within their pass band ...

Page 15

... values for a given . The slew rate of the OP176 will support 20 V p-p outputs above 100 kHz with low distortion. The frequency response resulting with this filter is shown as the dotted HP portion of Figure 45 ...

Page 16

... OS caveat here is that the additional resistors can increase noise substantially. For example resistor generates ~ 12 nV noise and is about twice that of the OP176. These resistors can be ac bypassed to eliminate their noise using a simple shunt capacitor chosen such that its reactance (X much less than R at the lowest frequency of interest. ...

Page 17

... CM2 – +IN CM1 REV Figure 47. OP176 Spice Model Schematic –17– OP176 REF D10 98 ...

Page 18

... OP176 OP176 SPICE Model * * Node Assignments * Noninverting Input * | Inverting Input * | | Positive Supply * | | | Negative Supply * | | | | * | | | | * | | | | .SUBCKT OP176 INPUT STAGE & POLE AT 100 MHz * 2.487 2.487 CIN 1 2 3.7E-12 CM1 1 98 7.5E-12 CM2 2 98 7.5E- 320E- 100E-3 IOS 1 2 1E-9 EOS 9 3 POLY(1) ...

Page 19

... BSC –19– OP176 0.195 (4.95) 0.115 (2.93) 0.0196 (0.50) ° 0.0099 (0.25) 0.0500 (1.27) 0.0160 (0.41) ...

Page 20

–20– ...

Page 21

... C to +85 C OP176GS – +85 C OP176GSR – +85 C OP176GBC +25 C *For outline information see Package Information section. REV. 0 FOR CATALOG ORDERING GUIDE Package Description Package Option* 8-Pin Plastic DIP N-8 8-Pin SOIC SO-8 SO-8 Reel, 2500 Pieces DICE –21– OP176 ...

Related keywords