TS615IPWT(2004) View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

TS615IPWT
(Rev.:2004)

Dual Wide-Band Operational Amplifier with High Output Current

STMicroelectronics 

TS615

Intermodulation Distortion Product

The following graphs show the IM2 and the IM3 of the amplifier in different configurations. The two-tone

input signal is created by a Marconi 2026 multisource generator. Each tone has the same amplitude. The

measurement was carried out using an HP3585A spectrum analyzer.

Figure 47. Intermodulation vs. output

amplitude: 370 kHz & 400 kHz,

AV = +1.5, Rfb = 1 kΩ, RL = 14 Ω diff.,

VCC = ±2.5 V

-30

Figure 48. Intermodulation vs. output

amplitude: 370 kHz & 400 kHz,

AV = +1.5, Rfb = 1 kΩ, RL = 28 Ω diff.,

VCC = ±2.5 V

-30

-40

-40

-50

IM2

-60

770kHz

IM3

-70 340kHz, 430kHz

IM2

30kHz

-50

-60

IM3

IM2

-70

340kHz, 430kHz

30kHz

IM2

770kHz

-80

-80

-90

-100

0

IM3

1140kHz, 1170kHz

1

2

3

4

5

6

7

8

Differential Output Voltage (Vp-p)

-90

-100

0

IM3

1140kHz, 1170kHz

1

2

3

4

5

6

7

8

Differential Output Voltage (Vp-p)

Figure 49. Intermodulation vs. gain: 370kHz &

400kHz, RL=20Ω diff., Vout=6Vpp, VCC=±2.5V

-30

-40

IM3

-50

340kHz, 430kHz, 1140kHz, 1170kHz

-60

IM2

30kHz

IM2

-70

770kHz

-80

-90

-100

-110

1.0

1.5

2.0

2.5

3.0

3.5

4.0

Closed Loop Gain (Linear)

Figure 50. Intermodulation vs. Load: 370kHz & 400kHz,

AV=+1.5, Rfb=1kΩ, Vout=6.5Vpp, VCC=±2.5V

-30

-40

IM3

-50

340kHz, 430kHz, 1140kHz, 1170kHz

-60

IM2

30kHz

IM2

-70

770kHz

-80

-90

-100

-110

0

20 40 60 80 100 120 140 160 180 200

Differential Load (Ω)

18/36

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