K305(2004) 查看數據表（PDF） - STMicroelectronics

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K305
(Rev.:2004)

550 MHz, Low Noise Current Feedback Amplifier

STMicroelectronics 

Electrical Characteristics

TSH350

2 Electrical Characteristics

Table 3: Electrical characteristics for VCC = ±2.5Volts, Tamb = 25°C (unless otherwise specified)

Symbol

Parameter

Test Condition

DC performance

Input Offset Voltage

Vio Offset Voltage between both inputs

∆Vio Vio drift vs. Temperature

Tamb

Tmin. < Tamb < Tmax.

Tmin. < Tamb < Tmax.

Iib+

Iib-

CMR

SVR

PSR

ICC

Non Inverting Input Bias Current

Tamb

DC current necessary to bias the input + Tmin. < Tamb < Tmax.

Inverting Input Bias Current

Tamb

DC current necessary to bias the input - Tmin. < Tamb < Tmax.

Common Mode Rejection Ratio

∆Vic = ±1V

20 log (∆Vic/∆Vio)

Tmin. < Tamb < Tmax.

Supply Voltage Rejection Ratio

∆Vcc=+3.5V to +5V

20 log (∆Vcc/∆Vio)

Tmin. < Tamb < Tmax.

Power Supply Rejection Ratio

20 log (∆Vcc/∆Vout)

AV = +1, ∆Vcc=±100mV

at 1kHz

Tmin. < Tamb < Tmax.

Positive Supply Current

DC consumption with no input signal

No load

Dynamic performance and output characteristics

Transimpedance

∆Vout = ±1V, RL = 100Ω

Output Voltage/Input Current Gain in

ROL open loop of a CFA.

Tmin. < Tamb < Tmax.

For a VFA, the analog of this feature is

the Open Loop Gain (AVD)

-3dB Bandwidth

Small Signal Vout=20mVp-p

Frequency where the gain is 3dB below AV = +1, RL = 100Ω

the DC gain AV

AV = +2, RL = 100Ω

Note: Gain Bandwidth Product criterion is AV = +10, RL = 100Ω

Bw not applicable for Current-Feedback- AV = -2, RL = 100Ω

Amplifiers

Gain Flatness @ 0.1dB

Small Signal Vout=100mVp

Band of frequency where the gain varia- AV = +1, RL = 100Ω

tion does not exceed 0.1dB

Slew Rate

SR Maximum output speed of sweep in

large signal

Vout = 2Vp-p, AV = +2,

RL = 100Ω

High Level Output Voltage

VOH

Low Level Output Voltage

VOL

RL = 100Ω

Tmin. < Tamb < Tmax.

RL = 100Ω

Tmin. < Tamb < Tmax.

Min.

56

68

170

250

1.44

Typ.

0.8

1

0.9

12

13

1

2.5

60

58

81

78

51

48

4.1

270

250

550

390

125

370

65

940

1.56

1.49

-1.53

-1.49

Max.

4

35

20

4.9

-1.44

Unit

mV

µV/°C

µA

µA

dB

dB

dB

mA

kΩ

kΩ

MHz

V/µs

V

V

3/21

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