Features

• Good CMRR: typ. 50 dB
• Low-cost, Self-contained dual line receiver
• Excellent audio performance
– Wide bandwidth: > 7.6 MHz
– High slew rate: 14 V/µs
– Low distortion: 0.0006 % THD
– Low noise: -107 dBu
• Low Current: 3 mA (per amplifier)
• Three gain versions: 0 dB, ± 3 dB, & ± 6 dB

Datasheet Download

Datasheet Download
1290-Series Datasheet (129 kB)
Dual Balanced Line Receiver ICs

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

Description

The THAT 1290 series of low-cost dual precision differential amplifiers was designed primarily for use as balanced line receivers for audio applications.

These devices include on-board precision thin-film resistors which offer good matching and excellent tracking due to their monolithic construction.

The 1290 series is available in a 16-pin QSOP package which features a very small footprint.

Key Specifications (see 1290 Series datasheet for complete specifications)
Parameter
Symbol
Conditions
Typical
Units
Gain  
THAT 1290
THAT 1293
THAT 1296
0
± 3
± 6
dB
Common Mode Rejection Ratio
CMRR
 
 
50
dB
Input Voltage Range
Differential – equal & opposite swing
1290
1293
1296
21.5
24.5
27.5
dBu
Output Noise
BW = 20 kHz
1290
1293
1296
-104
-105.5
-107
dBu
Total Harmonic Distortion
THD
0.0006
%
Power Supply Voltage
± 3 to ± 18
V
Supply Current
6.0
mA
Supply Rejection Ratio 90 dB
Slew Rate 15 V/µs
Small Signal Bandwidth RL = 2kΩ, CL = 10pF 1290
1293
1296
7.6
9.6
11.6
MHz
Capacitive Load 200 pF
Channel Separation f = 1 kHz 120 dB
Packaging/Pricing/Samples
Model Gain Package Order Number Pricing (1000) Min Order Quantity Reference
1290 0 dB 16 pin QSOP 1290Q16-U $1.38 98 Request Samples
16 pin QSOP Tape & Reel 1290Q16-UR Contact us 2000
1293 -3 dB 16 pin QSOP 1293Q16-U $1.38 98
16 pin QSOP Tape & Reel 1293Q16-UR Contact us 2000
1296 -6 dB 16 pin QSOP 1296Q16-U $1.38 98
16 pin QSOP Tape & Reel 1296Q16-UR Contact us 2000
All 1290-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. ICs designated -UR are available on tape and reel for a modest increase in price and require an extended lead time. Please contact our sales department for pricing and current lead time.

Design Notes

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)

Related Products
Other Balanced Line Receivers
THAT 1240 Series Single Channel Balanced Line Receivers 1240 Series Datasheet
THAT 1250 Series Low-Cost Single Channel Balanced Line Receivers 1250 Series Datasheet
THAT 1280 Series Dual Channel Balanced Line Receivers 1280 Series Datasheet
THAT 1290 Series Low-Cost Dual Channel Balanced Line Receivers 1290 Series Datasheet
Balanced Line Drivers
THAT 1606/1646 OutSmarts® Balanced Line Driver 1606/1646 Datasheet

Additional Resources

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

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

1290-series Surface Mount Adapter Board
– For our integrated circuits which are only available in surface mount packages THAT Corporation offers adapter boards which allow one of these surface-mount ICs to interface to a circuit board via traditional thru-hole mounting. These adapters make it easy for a design engineer to evaluate our surface-mount products on a prototype board without having to employ SMT technology. Adapter boards are available to qualified applicants.

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.