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THAT Corporation

THAT1200 Datasheet Preview

THAT1200 Datasheet

(THAT1200 / THAT1203 / THAT1206) Ingenius High-cmrr Balanced Input Line Receiver

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FEATURES
High CMRR: typ. 90 dB at 60 Hz
Extremely high common-mode input
impedance
• Maintains balance under real-world
conditions
Transformer-like performance in an IC
Excellent audio performance
• Wide bandwidth: typ. > 22 MHz
• High slew rate: typ. 12 V/us
• Low distortion: typ. 0.0005 % THD
• Low noise: typ. -106 dBu
Several gains: 0 dB, -3 dB, & -6 dB
InGenius High-CMRR
Balanced Input Line Receiver ICs
THAT 1200, 1203, 1206
APPLICATIONS
Balanced Audio Line Receivers
Instrumentation Amplifiers
Differential Amplifiers
Transformer Front-End Replacements
ADC Front-Ends
Description
The THAT 1200-series InGenius balanced
line receivers overcome a serious limitation of
conventional balanced input stages: poor com-
mon mode rejection in real-world applications.
While conventional input stages measure well in
the lab and perform well on paper, they fail to
live up to their CMRR specs when fed from even
slightly unbalanced source impedances — a
common situation in almost any pro sound envi-
ronment. This is because conventional stages
have low common-mode input impedance, which
interacts with imbalances in source impedance to
unbalance common-mode signals, making them
indistinguishable from desired, balanced signals.
Developed by Bill Whitlock of Jensen Trans-
formers, the patented InGenius input stage uses
clever bootstrapping to raise its common-mode
input impedance into the megohm range without
the noise penalty from the obvious solution of
using high-valued resistors. Like transformers,
InGenius line receivers maintain their high
CMRR over a wide range of source impedance
imbalances — even when fed from single-ended
sources. But unlike transformers, these wide
bandwidth solid state devices offer dc-coupling,
low distortion, and transparent sound in a small
package at reasonable cost.
R6
IN-
R7
R8
IN+
R9
OA1
+1
R10
24K
R11
24K
+1
OA2
CM IN
R1
OA4
+1
R3
R2
OA3
-
+
R4
R5
24K
CM OUT
Vcc
Vee
Vout
REF
Part no.
THAT1200
THAT1203
THAT1206
Cb
R6 , R9
0
7k
7k
R7 , R8
24 k
17 k
17 k
R1 , R3
6k
6k
7k
R2 , R4
6k
6k
5k
Figure 1. THAT 1200-series equivalent circuit diagram
Pin Name
DIP Pin
SO Pin
Ref 1
1
In- 2
2
In+ 3
3
Vee 4
4
CM In
5
5
Vout
6
6
Vcc 7
7
CM Out
8
8
Table 1. 1200-series pin assignments
Gain
Plastic DIP Plastic SO
0 dB
1200P
1200S
-3 dB
1203P
1203S
-6 dB
1206P
1206S
Table 2. Ordering information
Protected under U.S. Patent Numbers, 5,568,561 and 6,160,451. Additional patents pending.
InGenius is a registered trademark of THAT Corporation.
THAT Corporation; 45 Sumner Street; Milford, Massachusetts 01757-1656; USA
Tel: +1 508 478-9200; Fax +1 508 478-0990; Web: www.thatcorp.com
Copyright © 2017, THAT Corporation; All rights reserved; Doc 600033 Rev 01




THAT Corporation

THAT1200 Datasheet Preview

THAT1200 Datasheet

(THAT1200 / THAT1203 / THAT1206) Ingenius High-cmrr Balanced Input Line Receiver

No Preview Available !

InGenius High-CMRR
Balanced Input Line Receiver ICs
Page 2 of 12
Document 600033 Rev 01
SPECIFICATIONS1
Absolute Maximum Ratings (TA = 25°C)
Positive Supply Voltage (VCC)
Negative Supply Voltage (VEE)
Storage Temperature Range (TST)
Input Voltage (VIN)
+20 V
-20 V
-40 to +125 ºC
THAT1200
± 25 V
Output Short-Circuit Duration (tSH)
Operating Temperature Range (TOP)
Junction Temperature (TJ)
THAT1203
THAT1206
± 31 V
± 31 V
Continuous
0 to +85 ºC
125 ºC
Parameter
Supply Current
Supply Voltage
Input Bias Current
Input Offset Current
Input Voltage Range
Electrical Characteristics2,3,4
Symbol
Conditions
Min
ICC No Signal —
VCC, VEE
±3
IB No signal; Either input —
connected to GND
IB-OFF
No signal
Typ Max
4.7 8.0
±18
700 1,400
— ±300
VIN-CM
VIN-DIFF
Common mode
Differential (equal and opposite swing)
THAT 1200
THAT 1203
THAT 1206
±12.5
21.0
24.0
24.0
±13.0
21.5
24.5
24.5
Input Impedance
ZIN-DIFF
ZIN-CM
Differential
Common mode
60 Hz
20 kHz
48.0
with bootstrap
10.0
3.2
Common Mode Rejection Ratio
CMRR1
Matched source impedances; VCM = ±10V
DC 70
60 Hz
70
20 kHz
90
90
85
Common Mode Rejection Ratio5
CMRRIEC
10Ω unmatched source impedances; VCM = ±10V
DC —
60 Hz
20 kHz
90
90
85
Common Mode Rejection Ratio
Power Supply Rejection Ratio6
CMRR2 600Ω unmatched source impedances; VCM = ±10V
60 Hz
— 70
20 kHz
— 65
PSRR
At 60 Hz, with VCC = -VEE
THAT 1200
THAT 1203
THAT 1206
— 82
— 80
— 80
Units
mA
V
nA
nA
V
dBu
dBu
dBu
kΩ
MΩ
MΩ
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
1 All specifications subject to change without notice.
2 Unless otherwise noted, TA = 25°C, VCC = +15V, VEE = -15V
3 See test circuit in Figure 2.
4 0 dBu = 0.775 Vrms
5 Per IEC Standard 60268-3 for testing CMRR of balanced
inputs.
6 Defined with respect to differential gain.
THAT Corporation; 45 Sumner Street; Milford, Massachusetts 01757-1656; USA
Tel: +1 508 478-9200; Fax +1 508 478-0990; Web: www.thatcorp.com
Copyright © 2017, THAT Corporation; All rights reserved.


Part Number THAT1200
Description (THAT1200 / THAT1203 / THAT1206) Ingenius High-cmrr Balanced Input Line Receiver
Maker THAT Corporation
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THAT1200 Datasheet PDF






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