SSM2018P Analog Devices Inc, SSM2018P Datasheet

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SSM2018P

Manufacturer Part Number
SSM2018P
Description
IC AMP AUDIO MONO CLASS AB 16DIP
Manufacturer
Analog Devices Inc
Type
Volt Controlled Ampr
Datasheets

Specifications of SSM2018P

Rohs Status
RoHS non-compliant
Amplifier Type
Audio
Number Of Circuits
1
Slew Rate
5 V/µs
Gain Bandwidth Product
14MHz
Current - Input Bias
250nA
Voltage - Input Offset
1000µV
Current - Supply
11mA
Voltage - Supply, Single/dual (±)
10 V ~ 36 V, ±5 V ~ 18 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Through Hole
Package / Case
16-DIP (0.300", 7.62mm)
Number Of Channels
1
Number Of Elements
3
Power Supply Requirement
Dual
Unity Gain Bandwidth Product (typ)
14MHz
Input Resistance
4@±15VMohm
Input Offset Voltage
1(Typ)@±15VmV
Input Bias Current
0.25@±15VnA
Single Supply Voltage (typ)
Not RequiredV
Dual Supply Voltage (typ)
±9/±12/±15V
Power Supply Rejection Ratio
80dB
Rail/rail I/o Type
No
Single Supply Voltage (min)
Not RequiredV
Single Supply Voltage (max)
Not RequiredV
Dual Supply Voltage (min)
±5V
Dual Supply Voltage (max)
±18V
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Through Hole
Pin Count
16
Package Type
PDIP
Output Type
-
Current - Output / Channel
-
-3db Bandwidth
-
Lead Free Status / RoHS Status
Not Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SSM2018P
Manufacturer:
AD
Quantity:
101
Part Number:
SSM2018PZ
Manufacturer:
MICROCHIP
Quantity:
1 001
a
GENERAL DESCRIPTION
The SSM2018T represents continuing evolution of the Frey
Operational Voltage Controlled Element (OVCE) topology that
permits flexibility in the design of high performance volume
control systems. The SSM2018T is laser trimmed for gain core
symmetry and offset. As a result, the SSM2018T is the first
professional audio quality VCA to offer trimless operation.
Due to careful gain core layout, the SSM2018T combines the
low noise of Class AB topologies with the low distortion of
Class A circuits to offer an unprecedented level of sonic trans-
REV. B
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 that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
FEATURES
117 dB Dynamic Range
0.006% Typical THD+N (@ 1 kHz, Unity Gain)
140 dB Gain Range
No External Trimming Required
Differential Inputs
Complementary Gain Outputs
Buffered Control Port
I–V Converter On-Chip
Low External Parts Count
Low Cost
parency. Additional features include differential inputs, a 140 dB
(–100 dB to +40 dB) gain range and a high impedance control
port. The SSM2018T provides an internal current-to-voltage
converter. Thus no external active components are required.
This device is offered in 16-lead plastic DIP and SOIC packages
and guaranteed for operation over the extended industrial tempera-
ture range of –40∞C to +85∞C.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
Voltage Controlled Amplifiers
–IN
+IN
V
C
FUNCTIONAL BLOCK DIAGRAM
CORE
GAIN
1–G
G
SSM2018T
SSM2018T
©Analog Devices, Inc., 2002
Trimless
www.analog.com
V
V
–I
–I
G
1–G
1–G
G

Related parts for SSM2018P

SSM2018P Summary of contents

Page 1

FEATURES 117 dB Dynamic Range 0.006% Typical THD kHz, Unity Gain) 140 dB Gain Range No External Trimming Required Differential Inputs Complementary Gain Outputs Buffered Control Port I–V Converter On-Chip Low External Parts Count Low Cost GENERAL ...

Page 2

SSM2018T–SPECIFICATIONS ELECTRICAL SPECIFICATIONS circuit with 18 k resistors, –V floating, and Class AB gain core bias (R IN specifications apply C.) A Parameter AUDIO PERFORMANCE Noise Headroom Total Harmonic Distortion plus Noise INPUT AMPLIFIER Bias Current ...

Page 3

ABSOLUTE MAXIMUM RATINGS Supply Voltage Dual Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 4

SSM2018T–Typical Performance Characteristics 0 + 15V 18k +20dB 0.010 AV = –20dB AV = 0dB 0.001 20 100 1k FREQUENCY – Hz TPC 1. SSM2018T THD + N ...

Page 5

15V S 400 300 200 100 0 10 100 1k FREQUENCY – Hz TPC 7. SSM2018T Noise Density vs. Frequency (Unity Gain, Referred to Input +25 C ...

Page 6

SSM2018T –20 –40 –60 –80 100 1k 10k 100k FREQUENCY – Hz TPC 13. SSM2018T Gain vs. Frequency 0.06 0. 10dBu IN 0. –20dB V AND V = –10dBu IN 0.03 A ...

Page 7

V = 15V S –25 –30 –35 –40 –40 – TEMPERATURE – °C TPC 19. SSM2018T Gain Constant vs. Temperature – + 15V S –29 –30 –31 –32 –33 –80 ...

Page 8

SSM2018T APPLICATIONS The SSM2018T is a trimless Voltage Controlled Amplifier (VCA) for volume control in audio systems. The SSM2018T is identi- cal to the original SSM2018 in functionality and pinout; how- ever the first professional quality audio VCA ...

Page 9

COMP 2 COMPENSATION –IN +IN V– shown later in the data sheet. Thus, for the Basic VCA circuit or the OVCE circuit, COMP3 should be left open. A compensation capacitor does need to be added between COMP1 and COMP2. Because ...

Page 10

SSM2018T Proper Operating Mode for the SSM2018T The SSM2018T has the flexibility of operating in either Class A or Class AB. This is accomplished by adjusting the amount of current flowing in the gain core (I in Figure 2). The ...

Page 11

As explained above, the gain constant has a –3500 ppm/∞C that is due to its reciprocal dependence on absolute temperature. This will cause the gain to vary over the temperature range from –40∞C to +85∞C when the ...

Page 12

SSM2018T If a symmetry trim performed, it should precede the control feedthrough trim and be done as follows: 1. Apply a 1 kHz sine wave of 10 dBu to the input with the control voltage set for ...

Page 13

Plastic DIP (N-16) Package 16 9 0.280 (7.11) PIN 1 0.240 (6.10 0.840 (21.33) 0.745 (18.93) 0.060 (1.52) 0.210 0.015 (0.38) (5.33) MAX 0.160 (4.06) 0.115 (2.93) SEATING 0.070 (1.77) 0.022 (0.558) 0.100 (2.54) PLANE 0.045 (1.15) ...

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