LTC6400CUD-8-PBF LINER [Linear Technology], LTC6400CUD-8-PBF Datasheet
LTC6400CUD-8-PBF
Related parts for LTC6400CUD-8-PBF
LTC6400CUD-8-PBF Summary of contents
Page 1
FEATURES n 2.2GHz –3dB Bandwidth n Fixed Gain of 2.5V/V (8dB) n –99dBc IMD3 at 70MHz (Equivalent OIP3 = 53.4dBm) n –61dBc IMD3 at 300MHz (Equivalent OIP3 = 34.8dBm) n 1nV/√Hz Internal Op Amp Noise n 7.6dB Noise Figure n ...
Page 2
... ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL LTC6400CUD-8#PBF LTC6400CUD-8#TRPBF LTC6400IUD-8#PBF LTC6400IUD-8#TRPBF Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi label on the shipping container. Consult LTC Marketing for information on non-standard lead based fi nish parts. ...
Page 3
DC ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T otherwise noted. SYMBOL PARAMETER Input/Output Characteristic G Gain DIFF TC Gain Temperature Drift GAIN V Output Swing Low SWINGMIN V Output Swing High SWINGMAX V Maximum Differential Output Swing ...
Page 4
LTC6400-8 AC ELECTRICAL CHARACTERISTICS ENABLE = 0V unless otherwise noted. L SYMBOL PARAMETER –3dBBW –3dB Bandwidth 0.5dBBW Bandwidth for 0.5dB Flatness 0.1dBBW Bandwidth for 0.1dB Flatness 1/f 1/f Noise Corner SR Slew Rate t 1% Settling Time S1% ...
Page 5
AC ELECTRICAL CHARACTERISTICS ENABLE = 0V unless otherwise noted. L SYMBOL PARAMETER P1dB,140M 1dB Compression Point NF140M Noise Figure e Input Referred Voltage Noise Density IN,140M e Output Referred Voltage Noise Density ON,140M 240MHz Input Signal HD2,240M/ Second-Order ...
Page 6
LTC6400-8 TYPICAL PERFORMANCE CHARACTERISTICS Frequency Response 14 TEST CIRCUIT –2 –4 10 100 1000 3000 FREQUENCY (MHz) 64008 G01 Input and Output Refl ection and Reverse Isolation vs Frequency 0 TEST CIRCUIT ...
Page 7
TYPICAL PERFORMANCE CHARACTERISTICS Overdrive Recovery Response 87.5Ω PER OUTPUT L TEST CIRCUIT – +IN 0 +OUT –1 –2 –3 –4 –OUT – 100 120 140 160 180 ...
Page 8
LTC6400-8 TYPICAL PERFORMANCE CHARACTERISTICS Turn-On Time 3.5 3.0 2.5 2.0 +OUT 1.5 –OUT 1.0 0 87.5Ω PER OUTPUT L –0.5 – TIME (ns) PIN FUNCTIONS + V (Pins 1, 3, 10): Positive Power Supply (Normally ...
Page 9
BLOCK DIAGRAM APPLICATIONS INFORMATION Circuit Operation The LTC6400 low noise and low distortion fully differential op amp/ADC driver with: • Operation from DC to 2.2GHz –3dB bandwidth • Fixed gain of 2.5V/V (8dB) • Differential input impedance 400Ω ...
Page 10
LTC6400-8 APPLICATIONS INFORMATION 25Ω 200Ω 500Ω 13 +IN IN+ OUT– +IN + 57.6Ω – 15 –IN IN– OUT+ 25Ω 200Ω 500Ω 16 –IN Figure 1. Input Termination for Differential 50Ω Input Impedance Using Shunt Resistor 500Ω 25Ω ...
Page 11
APPLICATIONS INFORMATION Output Impedance Match and Filter The LTC6400-8 can drive an ADC directly without external output impedance matching. Alternatively, the differential output impedance of 25Ω can be made larger, e.g. 50Ω, by series resistors or LC network. The internal ...
Page 12
LTC6400-8 APPLICATIONS INFORMATION Figure 8 summarizes the IMD3 performance of the whole system as shown in Figure 7. –40 SINGLE-ENDED INPUT F = 122.8Msps S –50 DRIVER COMPOSITE OUT P-P –60 –70 –80 –90 –100 –110 0 ...
Page 13
... V CC C10 C9 C12 0.1μF 1000pF 1000pF C7 0.1μF C23 C5 0.1μF 0.1μF R21 R22 (1) (1) C24 C6 0.1μF 0.1μ LTC6400CUD-8 200Ω MINI-CIRCUITS TCM4-19 (1:4) LTC6400-8 C18 0.1μF R10 R14 86.6Ω (1) R12 TCM 4: (1) 0.1μF 1:4 2 SL2 R7 R11 (2) ( 0.1μF 86.6Ω ...
Page 14
LTC6400-8 TYPICAL APPLICATIONS PORT 1 (50Ω) 0.1μF 1/2 AGILENT 133Ω E5O71A PORT 2 (50Ω) 0.1μF 14 Test Circuit B, 4-Port Analysis + V 1000pF 0.1μF V – ENABLE + BIAS CONTROL ...
Page 15
PACKAGE DESCRIPTION 3.50 0.05 1.45 0.05 (4 SIDES) 2.10 0.05 RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS 3.00 0.10 PIN 1 TOP MARK (NOTE 6) NOTE: 1. DRAWING CONFORMS TO JEDEC PACKAGE OUTLINE MO-220 VARIATION (WEED-2) 2. DRAWING NOT TO SCALE ...
Page 16
LTC6400-8 RELATED PARTS PART NUMBER DESCRIPTION High-Speed Differential Amplifi ers/Differential Op Amps ® LT 1993-2 800MHz Differential Amplifi er/ADC Driver LT1993-4 900MHz Differential Amplifi er/ADC Driver LT1993-10 700MHz Differential Amplifi er/ADC Driver LT1994 Low Noise, Low Distortion Differential Op Amp ...