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THAT 1240 Series

Update Time ： 2018-06-26 View ： 9006

Features / Applications / Description

FEATURES

• High CMRR: typ. 90 dB at 60 Hz
typ 85 dB at 20kHz

• Excellent audio performance
- Wide bandwidth: > 8.6 MHz
- High slew rate: 12 V/µs
- Low distortion: 0.0006 % THD
- Low noise: -106 dBu

• Extremely precise internal resistor matching: typ 0.005%

• Low Current: 2 mA

• Three gain versions:
0 dB, ± 3 dB, & ± 6 dB

• Industry-standard pinout

Datasheet Download

1240-Series Datasheet (135 kB)
Balanced Line Receiver ICs

DESCRIPTION

The THAT 1240-series of precision differential amplifiers are designed primarily for use as audio balanced line receivers. Fabricated using THAT’s proprietary DI process, the THAT 1246 is drop-in compatible with the TI INA137 and Analog Devices SSM2143, while the THAT 1240 is pin compatible with the INA134 and the SSM2141. The parts are available in models which can be configured as differential amplifiers for 0dB, +/-3dB, and +/-6dB gain. The internal precision-trimmed thin film resistors enable a wide variety of circuits that are virtually impossible to build with discrete components.

APPLICATIONS

• Balanced Audio Line Receivers

• Instrumentation Amplifiers

• Differential Amplifiers

• Precision Sum and
Difference Networks

• M-S Matrices

• Precision Rectifiers

• Precision gain amplifiers

• Current Shunt Monitors

Key Specifications (see 1240 Series datasheet for complete specifications)

Parameter	Symbol	Conditions		Typical	Units
Gain		THAT 1240 THAT 1243 THAT 1246		0 ± 3 ± 6	dB
Common Mode Rejection Ratio	CMRR		60 Hz 20 kHz	90 85	dB
Input Voltage Range	—	Differential - equal & opposite swing	1240 1243 1246	21.5 24.4 27.5	dBu
Output Noise	—	BW = 20 kHz	1240 1243 1246	-104 -105 -106	dBu
Total Harmonic Distortion	THD	—		0.0006	%
Power Supply Voltage	—	—		± 3 to ± 18	V
Supply Current	—	—		2.0	mA

Model	Gain	Package	Order Number	Pricing (1000)	Min Order Quantity	Reference
1240	0 dB	8 pin DIP	1240P08-U	$1.75	50	Request Samples
		8 pin SO	1240S08-U	$1.62	98
		8 pin SO Tape & Reel	1240S08-UR	Contact us	2000
1243	3 dB	8 pin DIP	1243P08-U	$1.75	50
		8 pin SO	1243S08-U	$1.62	98
		8 pin SO Tape & Reel	1243S08-UR	Contact us	2000
1246	6 dB	8 pin DIP	1246P08-U	$1.75	50
		8 pin SO	1246S08-U	$1.62	98
		8 pin SO Tape & Reel	1246S08-UR	Contact us	2000
1240 Demo Board	—	—	1240DEMO	$100.00	1
All 1240-Series parts are RoHS compliant. Minimum order quantity (MOQ) is one tube or one reel. Parts must be ordered in multiples of the MOQ. Samples are available to qualified applicants. Pricing is subject to change.

Design Note 133 Achieving Optimum CMRR with Differential Input A/D Converters (53k)

Design Note 140 Input and Output Circuits for THAT Preamplifier ICs (244k)
1240 Series Device Model - Our SPICE macro models allow modeling of the important parameters of our ICs.

1240 Series Demo Board - The THAT 1240 Demonstration System (US$100) allows an engineer to test the performance of a THAT 1240 series IC quickly and easily. The 1240 Demo Board is self-contained circuit board with XLR connectors for signal input and output and a 3-pin header for connection to an external regulated DC power supply (not included). See the 1240 Demo Datasheet for more information.

Part Number Cross Reference - A chart of THAT part numbers cross-referenced to other IC manufacturers.

Line Receiver Selector - A side by side comparison of the features and specifications of our input stage ICs.

Harsh Environment Packaging - TT Semiconductor repackages THAT Corporation’s IC products in ruggidized plastic for the medical, aerospace, defense, and heavy industrial marketplaces.

1240 Series Material Data Declaration Sheet

Material Data Declaration Sheets (MDDS) disclose the hazardous materials in our integrated circuits as required by the European RoHS directive.

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THAT 1240 Series