Amplifiers. THAT2180C Datasheet

THAT2180C Datasheet PDF

Part THAT2180C
Description Pre-Trimmed IC Voltage-Controlled Amplifiers
Feature THAT2180C; FEATURES • Wide Dynamic Range: >120 dB • Wide Gain Range: >130 dB • Exponential (dB) Gain Control • .
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FEATURES • Wide Dynamic Range: >120 dB • Wide Gain Range: >1 THAT2180C Datasheet





THAT2180C
FEATURES
• Wide Dynamic Range: >120 dB
• Wide Gain Range: >130 dB
• Exponential (dB) Gain Control
• Low Distortion: < 0.01 % (2180A)
• Wide Gain-Bandwidth: 20 MHz
• Dual Gain-Control Ports (pos/neg)
• Pin-Compatible with 2150-Series
Blackmer® Pre-Trimmed IC
Voltage Controlled Amplifiers
THAT 2180A, 2180B, 2180C
APPLICATIONS
• Faders
• Panners
• Compressors
• Expanders
• Equalizers
• Filters
• Oscillators
• Automation Systems
Description
THAT 2180 Series integrated-circuit voltage
controlled amplifiers (VCAs) are very high-
performance current-in/current-out devices
with two opposing-polarity, voltage-sensitive
control ports. They offer wide-range exponen-
tial control of gain and attenuation with low
signal distortion. The parts are trimmed at
wafer stage for low THD and control-voltage
feedthrough without further adjustment.
The VCA design takes advantage of a fully
complementary dielectric isolation process
which offers closely matched NPN/PNP pairs, to
deliver discrete performance at IC prices. The
parts are available in three grades, selected for
factory trimmed distortion, allowing the user to
optimize cost vs. performance. The 2180 Series
is available in an 8-pin single-in-line (SIP)
package.
BIAS CURRENT
COMPENSATION
Input
1
6
Gnd
7
2k Vcc
Vbe
MULTI-
PLIER
2
Ec+
25
Ec-
3
8
Output
4
Sym
Iadj
Iset
V-
5
Figure 1. 2180-series equivalent circuit diagram
Pin Name
Pin Number
Input
1
Ec+ 2
Ec- 3
Sym
4
V- 5
Gnd 6
V+ 7
Output
8
Table 1. Pin assignments
Max THD @ 1V,
1 kHz, 0 dB
0.01%
Plastic SIP
2180AL08-U
0.02%
2180BL08-U
0.05%
2180CL08-U
Table 2. Ordering information
THAT Corporation; 45 Sumner Street; Milford, MA 01757-1656; USA
Tel: +1 508 478 9200; Fax: +1 508 478 0990; Web: www.thatcorp.com
Copyright © 2008, THAT Corporation Document 600029 Rev 02



THAT2180C
Document 600029 Rev 02
Page 2 of 12
THAT 2180 Series
Blackmer® Pre-trimmed IC VCAs
Positive Supply Voltage (VCC)
Negative Supply Voltage (VEE)
Supply Current (ICC)
Maximum EC EC+ - (EC-)
SPECIFICATIONS1
Absolute Maximum Ratings2,3
+20 V
-20 V
10 mA
±1V
Power Dissipation (PD) (TA = 75 ºC)
Operating Temperature Range (TOP)
Storage Temperature Range (TST)
330 mW
0 to +70 ºC
-40 to +125 ºC
Parameter
Recommended Operating Conditions
Symbol
Conditions
2180A
2180B
Min Typ Max Min Typ Max
2180C
Min Typ Max Units
Positive Supply Voltage VCC
Negative Supply Voltage VEE
Bias Current
ISET
Signal Current
IIN + IOUT
VCC - VEE = 30 V
ISET = 2.4 mA
+4 +15 +18
-4 -15 -18
1 2.4 5
— 0.35 1.5
+4 +15
-4 -15
1 2.4
— 0.35
+18
-18
5
1.5
+4 +15 +18 V
-4 -15 -18 V
1 2.4 5 mA
— 0.35 1.5 mArms
Parameter
Symbol
Electrical Characteristics2
Conditions
2180A
2180B
Min Typ Max Min Typ Max
2180C
Min Typ Max Units
Supply Current
ICC
No signal
— 2.4 4 — 2.4 4 — 2.4 4 mA
Equiv. Input Bias Current IB
Input Offset Voltage
VOFF(IN)
Output Offset Voltage VOFF(OUT)
No Signal
No Signal
Rout = 20 k
0 dB gain
+15 dB gain
+30 dB gain
— 2 10 — 2 12 — 2 15 nA
— ±5 — — ±5 — — ±5 — mV
— 0.5 1 — 1
2 — 1.5 3 mV
—1
3 — 1.5 4 — 3 10 mV
— 3 12 — 5 15 — 9 30 mV
Gain Cell Idling Current IIDLE
Gain-Control Constant
TA =25°C (TCHIP35°C)
-60 dB < gain < +40 dB
EC+ /Gain (dB) Pin 2 (Fig. 14)
EC- /Gain (dB)
Pin 3
Gain-Control TempCo EC /TCHIP Ref TCHIP = 27°C
— 20 —
6.0 6.1 6.2
-6.2 -6.1 -6.0
— +0.33 —
— 20 —
6.0 6.1 6.2
-6.2 -6.1 -6.0
— +0.33 —
— 20 — µA
6.0 6.1 6.2 mV/dB
-6.2 -6.1 -6.0 mV/dB
— +0.33 — %/°C
Gain-Control Linearity
-60 to +40 dB gain
— 0.5 2 — 0.5 2 — 0.5 2 %
1 kHz Off Isolation
Output Noise
EC+= -360mV,EC-=+360mV 110 115 — 110 115 — 110 115 — dB
en(OUT)
20 Hz ~ 20 kHz
Rout = 20k
0 dB gain
+15 dB gain
— -98 -97 — -98 -96 — -98 -95 dBV
— -88 -86 — -88 -85 — -88 -84 dBV
Voltage at V-
VV-
No Signal
-3.1 -2.85 -2.6 -3.1 -2.85 -2.5 -3.1 -2.85 -2.6 V
1. All specifications are subject to change without notice.
2. Unless otherwise noted, TA=25ºC, VCC=+15V, VEE= -15V.
3. Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only; the functional operation of
the device at these or any other conditions above those indicated in the operational sections of this specification is not impli ed. Exposure to absolute maximum rating condi-
tions for extended periods may affect device reliability.
THAT Corporation; 45 Sumner Street; Milford, MA 01757-1656; USA
Tel: +1 508 478 9200; Fax: +1 508 478 0990; Web: www.thatcorp.com
Copyright © 2008, THAT Corporation



THAT2180C
THAT 2180 Series
Blackmer® Pre-trimmed IC VCAs
Page 3 of 12
Document 600029 Rev 02
Parameter
Electrical Characteristics (con’t)2
Symbol
Conditions
2180A
2180B
Min Typ Max Min Typ Max
2180C
Min Typ Max Units
Total Harmonic Distortion THD 1 kHz, No External Trim
VIN = 0 dBV, 0 dB gain — 0.005 0.010
VIN = +10 dBV, -15 dB gain — 0.020 0.030
VIN = -5 dBV, +15 dB gain — 0.020 0.030
Slew Rate
RIN = ROUT = 20 k
— 12 —
— 0.010 0.020
— 0.030 0.040
— 0.030 0.040
— 12 —
— 0.030 0.050
— 0.040 0.070
— 0.040 0.070
%
%
%
— 12 — V/µs
Gain at 0 V Control Voltage
EC- = 0 mV
-0.1 0.0 +0.1 -0.15 0.0 +0.15 -0.2 0.0 +0.2 dB
Vcc
2180
Ec-
Series
22p
VCA
7
V+ 3
20k
-IN
10u
20k
1 Ec- OUT
-IN SYM
Ec+
GND
V- 6
2
4
8
5 NC
OP275
+
Power Supplies
Vcc = +15 V
Vee = -15 V
5.1k
Vee
Figure 2. Typical Application Circuit
OUT
Figure 3. 2180-series Frequency Response vs. Gain
Figure 4. 2180-series Noise (20kHz NBW) vs. Gain
THAT Corporation; 45 Sumner Street; Milford, MA 01757-1656; USA
Tel: +1 508 478 9200; Fax: +1 508 478 0990; Web: www.thatcorp.com
Copyright © 2008, THAT Corporation






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