Datasheet

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LT6205/LT6206/LT6207

620567fc

TYPICAL APPLICATION

FEATURES

APPLICATIONS

DESCRIPTION

Single/Dual/Quad

Single Supply 3V,

100MHz Video Op Amps

The LT

6205/LT6206/LT6207 are low cost single/dual/

quad voltage feedback ampliﬁ ers that feature 100MHz

gain-bandwidth product, 450V/μs slew rate and 50mA

output current. These ampliﬁ ers have an input range that

includes ground and an output that swings within 60mV

of either supply rail, making them well suited for single

supply operation.

These ampliﬁ ers maintain their performance for supplies

from 2.7V to 12.6V and are speciﬁ ed at 3V, 5V and ±5V.

The inputs can be driven beyond the supplies without

damage or phase reversal of the output. Isolation between

channels is high, over 90dB at 10MHz.

The LT6205 is available in the 5-pin SOT-23, and the LT6206

is available in an 8-lead MSOP package with standard op

amp pinouts. For compact layouts the quad LT6207 is

available in the 16-pin SSOP package. These devices are

speciﬁ ed over the commercial, industrial and automotive

temperature ranges.

Baseband Video Splitter/Cable Driver

450V/μs Slew Rate

100MHz Gain Bandwidth Product

Wide Supply Range 2.7V to 12.6V

Output Swings Rail-to-Rail

Input Common Mode Range Includes Ground

High Output Drive: 50mA

Channel Separation: 90dB at 10MHz

Speciﬁ ed on 3V, 5V and ±5V Supplies

Input Offset Voltage: 1mV

Low Power Dissipation: 20mW per Ampliﬁ er on

Single 5V

Operating Temperature Range: –40°C to 125°C

Low Proﬁ le (1mm) SOT-23 (ThinSOT™) Package

Video Line Driver

Automotive Displays

RGB Ampliﬁ ers

Coaxial Cable Drivers

Low Voltage High Speed Signal Processing

Output Step Response

–

LT6206

1μF

75Ω

OUT1

OUT2

3.3V

499Ω 499Ω

3dB

z 50MHz

b 25mA

620567 TA01a

OUT

20ns/DIV

= 3.3V

= 0.1V TO 1.1V

f = 10MHz

620567 TA01b

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and

ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property

of their respective owners.

Summary of content (18 pages)

PAGE 1
LT6205/LT6206/LT6207 Single/Dual/Quad Single Supply 3V, 100MHz Video Op Amps DESCRIPTION FEATURES n n n n n n n n n n n n 450V/μs Slew Rate 100MHz Gain Bandwidth Product Wide Supply Range 2.7V to 12.
PAGE 2
LT6205/LT6206/LT6207 ABSOLUTE MAXIMUM RATINGS (Note 1) Total Supply Voltage (V + to V–) ..............................12.6V Input Current .......................................................±10mA Input Voltage Range (Note 2)....................................±VS Output Short-Circuit Duration (Note 3) ........... Indeﬁnite Pin Current While Exceeding Supplies (Note 9) ...±25mA Operating Temperature Range (Note 4) LT6205C/LT6206C/LT6207C, LT6205I/LT6206I/LT6207I ....................
PAGE 3
LT6205/LT6206/LT6207 ELECTRICAL CHARACTERISTICS The l denotes speciﬁcations which apply over the speciﬁed temperature range, otherwise speciﬁcations are at TA = 25°C. VS = 3V, 0V; VS = 5V, 0V; VCM = VOUT = 1V, unless otherwise noted. LT6205C/LT6206C/LT6207C LT6205I/LT6206I/LT6207I SYMBOL PARAMETER VOS Input Offset Voltage IB IOS MIN CONDITIONS l TYP MAX 1 3.
PAGE 4
LT6205/LT6206/LT6207 ELECTRICAL CHARACTERISTICS The l denotes speciﬁcations which apply over the speciﬁed temperature range, otherwise speciﬁcations are at TA = 25°C. VS = ±5V; VCM = VOUT = 0V, unless otherwise noted. LT6205C/LT6206C/LT6207C LT6205I/LT6206I/LT6207I SYMBOL PARAMETER VOS Input Offset Voltage MIN CONDITIONS l TYP MAX 1 4.
PAGE 5
LT6205/LT6206/LT6207 ELECTRICAL CHARACTERISTICS The l denotes speciﬁcations which apply over the full speciﬁed temperature range, –40°C ≤ TA ≤ 125°C, otherwise speciﬁcations are at TA = 25°C. VS = 3V, 0V; VS = 5V, 0V; VCM = VOUT = 1V, unless otherwise noted. LT6205H SYMBOL IOS PARAMETER CONDITIONS MIN TYP l Input Offset Current MAX 5 UNITS μA Input Noise Voltage 0.
PAGE 6
LT6205/LT6206/LT6207 ELECTRICAL CHARACTERISTICS The l denotes speciﬁcations which apply over the full speciﬁed temperature range, –40°C ≤ TA ≤ 125°C, otherwise speciﬁcations are at TA = 25°C. VS = ±5V; VCM = VOUT = 0V, unless otherwise noted. LT6205H SYMBOL PARAMETER CONDITIONS IB Input Bias Current l 50 μA IOS Input Offset Current l 5 μA MIN TYP MAX UNITS Input Noise Voltage 0.
PAGE 7
LT6205/LT6206/LT6207 TYPICAL PERFORMANCE CHARACTERISTICS Supply Current per Ampliﬁer vs Supply Voltage VOS Distribution 30 25 20 15 10 5 0 100 TA = 125°C 4 TA = 25°C 3 TA = –55°C 2 1 0 –3 –2 –1 0 1 2 INPUT OFFSET VOLTAGE (mV) 3 0 1 2 TA = 25°C 200 TA =125°C 0 –4 –5 –6 TA = 125°C –7 –8 TA = 25°C –9 –10 5 0 TA = 125°C 1 TA = 25°C 0.01 0.01 TA = –55°C 0.1 1 10 LOAD CURRENT (mA) 100 620567 G07 OUTPUT SATURATION VOLTAGE (V) OUTPUT SATURATION VOLTAGE (V) 10 0.
PAGE 8
LT6205/LT6206/LT6207 TYPICAL PERFORMANCE CHARACTERISTICS Short-Circuit Current vs Temperature Open-Loop Gain Open-Loop Gain 500 VS = p5V VS = 5V, 0V VCM = 1V TA = 25°C 400 80 INPUT VOLTAGE (μV) 70 SOURCING 60 50 40 3O –50 100 RL = 1k –100 RL = 150Ω –200 0 25 50 75 TEMPERATURE (°C) 100 80 VS = 5V, 0V 60 40 20 0 25 16 20 15 10 5 1k 10k FREQUENCY (Hz) 10 8 6 4 2 1k 10k FREQUENCY (Hz) 100k Gain Bandwidth and Phase Margin vs Supply Voltage 70 140 PHASE 60 50 100 30 20 40 10 0 –10 60
PAGE 9
LT6205/LT6206/LT6207 TYPICAL PERFORMANCE CHARACTERISTICS Gain Bandwidth and Phase Margin vs Temperature 50 700 45 35 VS = 3V, 0V VS = p5V 120 110 80 –50 –25 0 25 50 75 TEMPERATURE (°C) FALLING VS = p5V 550 RISING VS = 5V, 0V 500 FALLING VS = 5V, 0V 400 100 350 –50 125 GAIN (dB) 0 VS = 3V VCM = 1V OUTPUT IMPEDANCE (Ω) VS = p5V VCM = 0V 3 –9 0 25 50 75 TEMPERATURE (°C) 100 125 1M 10M FREQUENCY (Hz) 100M AV = 10 AV = 1 AV = 2 10 1 0.
PAGE 10
LT6205/LT6206/LT6207 TYPICAL PERFORMANCE CHARACTERISTICS Series Output Resistor vs Capacitive Load VS = 5V, 0V AV = 2 TA = 25°C 9 RS = 10Ω, RL = d OVERSHOOT (%) 30 25 20 RS = 20Ω, RL = d 15 10 RL = RS = 50Ω 5 0 100 CAPACITIVE LOAD (pF) AV = –1 8 6 5 4 3 2 VS = p5V TA = 25°C HD2, HD3 < –30dBc –70 RL = 1k, 2ND RL = 150Ω, 2ND RL = 150Ω, 3RD –80 RL = 1k, 3RD 1 10 FREQUENCY (MHz) 100 –100 0.01 AV = +1 VO = 2VP-P VS = p5V –40 RL = 150Ω, 3RD –50 0.
PAGE 11
LT6205/LT6206/LT6207 TYPICAL PERFORMANCE CHARACTERISTICS 620567 G37 50ns/DIV VS = ±5V AV = 1 RL = 150Ω 0V 0V VOUT (2V/DIV 0V Output-Overdrive Recovery VIN (1V/DIV Small Signal Response VS = ±5V 50mV/DIV 1V/DIV Large Signal Response VS = ±5V 620567 G38 50ns/DIV VS = ±5V AV = 1 RL = 150Ω 0V 100ns/DIV VS = 5V, 0V AV = 2 620567 G39 APPLICATIONS INFORMATION V+ I1 I2 R2 I3 R3 Q13 Q9 Q2 V+ Q5 CM V+ R1 RIN 150Ω DESD1 Q3 Q10 Q7 Q1 +IN DESD2 D1 D3 D2 D4 Q4 DESD5 Q6 COMPLEMENTA
PAGE 12
LT6205/LT6206/LT6207 APPLICATIONS INFORMATION Ampliﬁer Characteristics Figure 1 shows a simpliﬁed schematic of the LT6205/ LT6206/LT6207. The input stage consists of transistors Q1 to Q8 and resistor R1. This topology allows for high slew rates at low supply voltages. The input common mode range extends from ground to typically 1.75V from VCC, and is limited by 2 VBEs plus a saturation voltage of a current source.
PAGE 13
LT6205/LT6206/LT6207 APPLICATIONS INFORMATION black intensity, thereby causing scan retrace activity to be invisible on a CRT. The black level of the waveform is at (or set up very slightly above) the upper limit of the sync information. Waveform content above the black level is intensity information, with peak brightness represented at the maximum signal level.
PAGE 14
LT6205/LT6206/LT6207 TYPICAL APPLICATION 3.3V 1k 0.1μF 75Ω 1k VIDEO OUT 2.4k 4 C1 4.7μF – 75Ω 5 LT6205 COMPOSITE VIDEO IN 1VP-P 3 + 1 2 BAT54 10k IS b 19mA C2 4.7μF 470Ω 620567 TA02 Figure 2.
PAGE 15
LT6205/LT6206/LT6207 PACKAGE DESCRIPTION S5 Package 5-Lead Plastic TSOT-23 (Reference LTC DWG # 05-08-1635) 0.62 MAX 0.95 REF 2.90 BSC (NOTE 4) 1.22 REF 1.4 MIN 3.85 MAX 2.62 REF 2.80 BSC 1.50 – 1.75 (NOTE 4) PIN ONE RECOMMENDED SOLDER PAD LAYOUT PER IPC CALCULATOR 0.30 – 0.45 TYP 5 PLCS (NOTE 3) 0.95 BSC 0.80 – 0.90 0.20 BSC 0.01 – 0.10 1.00 MAX DATUM ‘A’ 0.30 – 0.50 REF 0.09 – 0.20 (NOTE 3) NOTE: 1. DIMENSIONS ARE IN MILLIMETERS 2. DRAWING NOT TO SCALE 3.
PAGE 16
LT6205/LT6206/LT6207 PACKAGE DESCRIPTION MS8 Package 8-Lead Plastic MSOP (Reference LTC DWG # 05-08-1660) 0.889 ± 0.127 (.035 ± .005) 5.23 (.206) MIN 3.20 – 3.45 (.126 – .136) 3.00 ± 0.102 (.118 ± .004) (NOTE 3) 0.65 (.0256) BSC 0.42 ± 0.038 (.0165 ± .0015) TYP 8 0.52 (.0205) REF 7 6 5 RECOMMENDED SOLDER PAD LAYOUT 3.00 ± 0.102 (.118 ± .004) (NOTE 4) 4.90 ± 0.152 (.193 ± .006) DETAIL “A” 0.254 (.010) 0° – 6° TYP GAUGE PLANE 1 0.53 ± 0.152 (.021 ± .006) 2 3 4 1.10 (.043) MAX DETAIL “A” 0.
PAGE 17
LT6205/LT6206/LT6207 REVISION HISTORY (Revision history begins at Rev C) REV DATE DESCRIPTION PAGE NUMBER C 3/10 C Grade Speciﬁed Temperature Range Changed in the Order Information Section 2 620567fc Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use.
PAGE 18
LT6205/LT6206/LT6207 TYPICAL APPLICATION YPBPR to RGB Converter 5V 1μF 36Ω CMPD6001S FMMT3906 150Ω R 4.7k 165Ω 499Ω 4 1 2 – – 75Ω 150Ω 16 15 499Ω 150Ω 3 Y + 75Ω B 107Ω 150Ω 75Ω LT6207 5 6 365Ω 499Ω PB 95.3Ω + 14 + + – – 12 80.6Ω 11 499Ω 10 7 150Ω 13 174Ω 150Ω G 75Ω PR 1μF 133Ω F3dB z 40MHz IS b 60mA BLACK LEVELS z 0V –5V R = Y + 1.4 • PR B = Y + 1.8 • PB G = Y – 0.34 • PB – 0.