iT3021 Iterra, iT3021 Datasheet

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iT3021

Manufacturer Part Number
iT3021
Description
2.5-Gb/s high-sensitivity limiter amplifier
Manufacturer
Iterra
Datasheet
1.IT3021.pdf (7 pages)
www.DataSheet4U.com
www.iterrac.com
Recommended
Description
Conditions
Operating
Maximum
Absolute
Features
Ratings
Symbol
T c
Vee1
Vee2
Iee1+Iee2
Voffset (+)
Voffset (-)
Vctrl
Vd
Vm
Vindc
This is a Production data sheet. See “Product Status Definitions”
on Web site or catalog for product development status.
February 23, 2006 Doc. 4041 Rev 1
2.5 Gb/s High-Sensitivity Limiter Amplifier
The iT3021 is a limiting amplifier for use as a post amplifier in optical receivers. Signals as small
as +/-7 mVpp differential can be amplified to 1.28 Vpp differential. Offset correction and output
voltage control are provided. Both AC and DC coupling are allowed at the input and output. The
high sensitivity allows the device to be used at the output of a transimpedance amplifier.
S ymbol
Vee1,2
Vd
Vm
Ioffset(+),(-) Offset control current
T ch
T stg
3-dB bandwidth: 2.5 GHz
Differential gain: 42 dB
Saturated output: 640 mVpp on each output into 50 ohms
Single bias supply: -5.2 V
Power consumption: 494 mW
Bias current: 95 mA
DC offset correction
Amplitude voltage control
Low RMS jitter
Low-cost JEDEC QFP-N (MO-220) package
Parameters/conditions
Operating temperature range (T case)
Power supply voltage
Power supply voltage
T otal bias supply current
Offset control voltage
Offset control voltage
Amplitude voltage control
Applied peak to peak voltage at data input (differential)
Applied peak to peak voltage at data input (single ended)
Input/output interface
DC input voltage (with DC-coupled input)
Parameters/conditions
Power supply voltage
Applied voltage at data input (differential)
Applied voltage at data input (single ended)
Maximum channel temperature
Storage temperature
1
Min.
-5.45
-5.45
Min.
-5.2
-0.5
2400 Geng Road, Ste. 100, Palo Alto, CA 94303
80
14
-5
-5
0
7
-65
-8
Phone (650) 424-1937, Fax (650) 424-1938
AC and DC coupled
Max.
Typ.
150
150
1.5
-5.2
-5.2
95
0
3
5
iTerra Communications
Units
mA
o
°C
Max.
-4.95
-4.95
V
V
V
1000
1000
C
110
iT3021
0.5
85
5
5
0
Units
mA
mV
mV
o
V
V
V
V
V
V
C

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iT3021 Summary of contents

Page 1

... Gb/s High-Sensitivity Limiter Amplifier The iT3021 is a limiting amplifier for use as a post amplifier in optical receivers. Signals as small as +/-7 mVpp differential can be amplified to 1.28 Vpp differential. Offset correction and output voltage control are provided. Both AC and DC coupling are allowed at the input and output. The high sensitivity allows the device to be used at the output of a transimpedance amplifier ...

Page 2

... Output peak to peak voltage (either Q or /Q) Vout (Vctrl=0V for max. output voltage) Δ Vout Vout sensitivity vs. bias (Vee=-5.2 V +/-5%) Voutdc Output DC voltage (DC coupled to 50 ohm load) Trse Rise time (20% - 80%) Tfse Fall time (20% - 80%) Jpp Jitter peak to peak iT3021 Single Ended Gain 50.0 45.0 40.0 35.0 30.0 25.0 20.0 15.0 10.0 5.0 0.0 0.0 ...

Page 3

... Bit rate: 2.5 Gb/s Vin =+/-10 mVpp, Vout = +/-670 mVpp Bit rate: 2.5 Gb/s Vin =+/-100 mVpp, Vout = +/-672 mVpp Input sensitivity = +/-3 mVpp differential input, 2.5 Gb/s Output voltage = 333 mVpp single-ended iTerra Communications 2400 Geng Road, Ste. 100, Palo Alto, CA 94303 Phone (650) 424-1937, Fax (650) 424-1938 3 iT3021 ...

Page 4

... Input Amplitude (mVpp) Fall Time vs Input Voltage @ 2.5Gb/s 120 100 100 1000 Imput Amplitude (+/-mVpp) iTerra Communications 2400 Geng Road, Ste. 100, Palo Alto, CA 94303 Phone (650) 424-1937, Fax (650) 424-1938 4 iT3021 1000 1000 1000 ...

Page 5

... February 23, 2006 Doc. 4041 Rev 1 Power Supply Current 100 Control Voltage (Volts) Bit rate: 2.5 Gb/s, Vctrl =-2.7 V Vin =+/-200 mVpp, Vout =+/-167mVpp iTerra Communications 2400 Geng Road, Ste. 100, Palo Alto, CA 94303 Phone (650) 424-1937, Fax (650) 424-1938 5 iT3021 - ...

Page 6

... Web site or catalog for product development status. February 23, 2006 Doc. 4041 Rev 1 Vctrl 560pF VL2 Q RF output /Q Vee2 Vc b 0.1μF 560pF 0.1μF iTerra Communications 2400 Geng Road, Ste. 100, Palo Alto, CA 94303 Phone (650) 424-1937, Fax (650) 424-1938 6 iT3021 0.1μF Vee= -5.2 V ...

Page 7

... This is a Production data sheet. See “Product Status Definitions” on Web site or catalog for product development status. February 23, 2006 Doc. 4041 Rev 1 (voltage control) iTerra Communications 2400 Geng Road, Ste. 100, Palo Alto, CA 94303 Phone (650) 424-1937, Fax (650) 424-1938 7 iT3021 ...

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