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
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.
| 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 | |
| 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)
| 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.