Datasheet

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LT6202/LT6203/LT6204

620234fd

TYPICAL APPLICATION

DESCRIPTION

Single/Dual/Quad 100MHz,

Rail-to-Rail Input and Output,

Ultralow 1.9nV/√Hz Noise, Low Power Op Amps

The LT

6202/LT6203/LT6204 are single/dual/quad low

noise, rail-to-rail input and output unity gain stable op amps

that feature 1.9nV/√Hz noise voltage and draw only 2.5mA

of supply current per amplifier. These amplifiers combine

very low noise and supply current with a 100MHz gain

bandwidth product, a 25V/µs slew rate, and are optimized

for low supply signal conditioning systems.

These amplifiers maintain their performance for supplies

from 2.5V to 12.6V and are specified at 3V, 5V and ±5V

supplies. Harmonic distortion is less than –80dBc at

1MHz making these amplifiers suitable in low power data

acquisition systems.

The LT6202 is available in the 5-pin TSOT-23 and the 8-pin

SO, while the LT6203 comes in 8-pin SO and MSOP pack-

ages with standard op amp pinouts. For compact layouts

the LT6203 is also available in a tiny fine line leadless

package (DFN), while the quad LT6204 is available in the

16-pin SSOP and 14-pin SO packages. These devices

can be used as plug-in replacements for many op amps

to improve input/output range and noise performance.

Low Noise 4- to 2-Wire Local Echo Cancellation Differential Receiver

FEATURES

APPLICATIONS

Low Noise Voltage: 1.9nV/√Hz (100kHz)

Low Supply Current: 3mA/Amp Max

Gain Bandwidth Product: 100MHz

Dual LT6203 in Tiny DFN Package

Low Distortion: –80dB at 1MHz

Low Offset Voltage: 500µV Max

Wide Supply Range: 2.5V to 12.6V

Input Common Mode Range Includes Both Rails

Output Swings Rail-to-Rail

Common Mode Rejection Ratio 90dB Typ

Unity Gain Stable

Low Noise Current: 1.1pA/√Hz

Output Current: 30mA Min

Operating Temperature Range –40°C to 125°C

Low Profile (1mm) SOT-23 (ThinSOT

™

) Package

Low Noise, Low Power Signal Processing

Active Filters

Rail-to-Rail Buffer Amplifiers

Driving A/D Converters

DSL Receivers

Battery Powered/Battery Backed Equipment

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

Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other

trademarks are the property of their respective owners.

1:1

••

100Ω

LINE

50Ω

1k 1k

LINE

RECEIVER

1k 1k

6203 TA01a

–

LINE

DRIVER

1/2 LT6203

1/2 LT1739

BANDWIDTH (kHz)

INTEGRATED NOISE (µV

RMS

)

5.0

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

100

6203 • TA01b

20 60

120

140

160

Line Receiver Integrated Noise 25kHz to 150kHz

Summary of content (28 pages)

PAGE 1
LT6202/LT6203/LT6204 Single/Dual/Quad 100MHz, Rail-to-Rail Input and Output, Ultralow 1.9nV/√Hz Noise, Low Power Op Amps FEATURES DESCRIPTION n n n n n n n n n n n n n n n Low Noise Voltage: 1.9nV/√Hz (100kHz) Low Supply Current: 3mA/Amp Max Gain Bandwidth Product: 100MHz Dual LT6203 in Tiny DFN Package Low Distortion: –80dB at 1MHz Low Offset Voltage: 500µV Max Wide Supply Range: 2.5V to 12.
PAGE 2
LT6202/LT6203/LT6204 ABSOLUTE MAXIMUM RATINGS (Note 1) Total Supply Voltage (V+ to V–)............................... 12.6V Input Current (Note 2).......................................... ±40mA Output Short-Circuit Duration (Note 3)............. Indefinite Operating Temperature Range (Note 4) LT6202C/LT6203C/LT6204C.................–40°C to 85°C LT6202I/LT6203I/LT6204I....................–40°C to 85°C LT6202H/LT6203H..............................
PAGE 3
LT6202/LT6203/LT6204 ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE LT6202CS5#PBF LT6202CS5#TRPBF LTG6 5-Lead Plastic TSOT-23 0°C to 70°C LT6202IS5#PBF LT6202IS5#TRPBF LTG6 5-Lead Plastic TSOT-23 –40°C to 85°C LT6202HS5#PBF LT6202HS5#TRPBF LTG6 5-Lead Plastic TSOT-23 –40°C to 125°C LT6202CS8#PBF LT6202CS8#TRPBF 6202 8-Lead Plastic SO 0°C to 70°C LT6202IS8#PBF LT6202IS8#TRPBF 6202I 8-Lead Plastic SO –40°C to 85°C LT
PAGE 4
LT6202/LT6203/LT6204 ELECTRICAL CHARACTERISTICS TA = 25°C, VS =5V, 0V; VS = 3V, 0V; VCM = VOUT = half supply, SYMBOL PARAMETER CONDITIONS VOS Input Offset Voltage unless otherwise noted. MIN TYP MAX VS = 5V, 0V, VCM = Half Supply LT6203, LT6204, LT6202S8 LT6202 TSOT-23 0.1 0.1 0.5 0.7 mV mV VS = 3V, 0V, VCM = Half Supply LT6203, LT6204, LT6202S8 LT6202 TSOT-23 0.6 0.6 1.5 1.7 mV mV VS = 5V, 0V, VCM = V + to V – LT6203, LT6204, LT6202S8 LT6202 TSOT-23 0.25 0.25 2.0 2.
PAGE 5
LT6202/LT6203/LT6204 ELECTRICAL CHARACTERISTICS unless otherwise noted. TA = 25°C, VS =5V, 0V; VS = 3V, 0V; VCM = VOUT = half supply, SYMBOL PARAMETER CONDITIONS MIN TYP ISC Short-Circuit Current VS = 5V VS = 3V ±30 ±25 ±45 ±40 IS Supply Current per Amp VS = 5V VS = 3V 2.5 2.3 MAX UNITS mA mA 3.0 2.85 mA mA GBW Gain Bandwidth Product Frequency = 1MHz, VS = 5V 90 MHz SR Slew Rate VS = 5V, AV = –1, RL = 1k, VO = 4V 17 24 V/µs 1.8 2.
PAGE 6
LT6202/LT6203/LT6204 ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over 0°C < TA < 70°C temperature range. VS = 5V, 0V; VS = 3V, 0V; VCM = VOUT = half supply, unless otherwise noted.
PAGE 7
LT6202/LT6203/LT6204 ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over –40°C < TA < 85°C temperature range. VS = 5V, 0V; VS = 3V, 0V; VCM = VOUT = half supply, unless otherwise noted.
PAGE 8
LT6202/LT6203/LT6204 ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over –40°C < TA < 125°C temperature range. VS = 5V, 0V; VS = 3V, 0V; VCM = VOUT = half supply, unless otherwise noted. (Note 4) SYMBOL PARAMETER PSRR Match (Channel-to-Channel) (Note 5) CONDITIONS VS = 3V to 10V, VCM = 0V Minimum Supply Voltage (Note 6) MIN TYP l 70 100 l 3.
PAGE 9
LT6202/LT6203/LT6204 ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER TA = 25°C, VS = ±5V; VCM = VOUT = 0V, unless otherwise noted. CONDITIONS = V– to V+ MIN TYP MAX UNITS Common Mode Rejection Ratio VCM VCM = –2V to 2V 65 85 85 98 dB dB CMRR Match (Channel-to-Channel) (Note 5) VCM = –2V to 2V 85 120 dB Power Supply Rejection Ratio VS = ±1.25V to ±5V 60 74 dB PSRR Match (Channel-to-Channel) (Note 5) VS = ±1.
PAGE 10
LT6202/LT6203/LT6204 ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over 0°C < TA < 70°C temperature range. VS = ±5V; VCM = VOUT = 0V, unless otherwise noted. SYMBOL PARAMETER CONDITIONS PSRR Power Supply Rejection Ratio VS = ±1.5V to ±5V MIN TYP l 60 70 70 100 MAX UNITS dB PSRR Match (Channel-to-Channel) (Note 5) VS = ±1.
PAGE 11
LT6202/LT6203/LT6204 ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over –40°C < TA < 85°C temperature range. VS = ±5V; VCM = VOUT = 0V, unless otherwise noted. (Note 4) SYMBOL PARAMETER CONDITIONS No Load ISOURCE = 5mA ISOURCE = 15mA MIN TYP MAX UNITS 70 130 360 130 250 640 mV mV mV VOH Output Voltage Swing HIGH Saturation (Note 7) ISC Short-Circuit Current IS Supply Current per Amp l 3.
PAGE 12
LT6202/LT6203/LT6204 ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over –40°C < TA < 125°C temperature range. VS = ±5V; VCM = VOUT = 0V, unless otherwise noted. (Note 4) SYMBOL PARAMETER TYP MAX l 3.8 5.3 Frequency = 1MHz l 90 Slew Rate AV = –1, RL = 1k, VO = 4V l 13 18 V/µs Full Power Bandwidth (Note 9) VOUT = 3VP-P l 1.4 1.
PAGE 13
LT6202/LT6203/LT6204 TYPICAL PERFORMANCE CHARACTERISTICS VOS Distribution, VCM = V+/2 45 60 VS = 5V, 0V S8 40 VOS Distribution, VCM = V+ VOS Distribution, VCM = V– 60 VS = 5V, 0V S8 50 50 30 25 20 15 10 40 NUMBER OF UNITS NUMBER OF UNITS 30 20 10 5 0 –250 –150 –50 0 50 150 INPUT OFFSET VOLTAGE (µV) 0 –800–600 –400 –200 0 200 400 600 800 1000 INPUT OFFSET VOLTAGE (µV) 250 Supply Current vs Supply Voltage (Both Amplifiers) TA = 125°C TA = –55°C 8 12 6 10 4 TOTAL SUPPLY VOLTAGE (V) TA = 25
PAGE 14
LT6202/LT6203/LT6204 TYPICAL PERFORMANCE CHARACTERISTICS Output Short-Circuit Current vs Power Supply Voltage Minimum Supply Voltage 6 4 TA = 125°C 2 TA = 25°C 0 –2 –4 TA = –55°C –6 –8 1 1.5 2 2.5 3 3.5 4 4.5 TOTAL SUPPLY VOLTAGE (V) SOURCING 60 1.5 TA = 25°C 20 TA = –55°C 0 SINKING TA = –55°C –20 TA = 25°C –40 –60 2 RL = 100Ω 0.5 –0.5 –1.5 –2.0 4 –2.
PAGE 15
LT6202/LT6203/LT6204 TYPICAL PERFORMANCE CHARACTERISTICS 12 BALANCED SOURCE RESISTANCE VS = 5V, 0V TA = 25°C PNP ACTIVE VCM = 0.5V 4 3 BOTH ACTIVE VCM = 2.5V 2 NPN ACTIVE VCM = 4.5V 1 0 100 10 1k 10k FREQUENCY (Hz) 10 6 BOTH ACTIVE VCM = 2.5V NPN ACTIVE VCM = 4.
PAGE 16
LT6202/LT6203/LT6204 TYPICAL PERFORMANCE CHARACTERISTICS Common Mode Rejection Ratio vs Frequency –40 100 80 TA = 25°C AV = 1 VS = ±5V –50 COMMON MODE REJECTION RATIO (dB) VS = 5V, 0V VCM = VS/2 –60 VOLTAGE GAIN (dB) 80 60 40 –70 –80 –90 –100 20 –110 0 10k 1M 10M FREQUENCY (Hz) 100k 100M 1G –120 0.
PAGE 17
LT6202/LT6203/LT6204 TYPICAL PERFORMANCE CHARACTERISTICS AV = 1 VS = ±5V VOUT = 2V(P-P) –60 –40 RL = 100Ω, 3RD DISTORTION (dBc) DISTORTION (dBc) –50 Distortion vs Frequency –30 RL = 100Ω, 2ND –70 –80 RL = 1k, 2ND –90 100k 1M FREQUENCY (Hz) –50 –50 RL = 100Ω, 3RD RL = 100Ω, 2ND –60 –70 –80 RL = 1k, 3RD –100 10k 10M LT6202/03/04 G35 AV = 2 RL = 100Ω, 3RD VS = ±5V VOUT = 2V(P-P) –60 RL = 100Ω, 2ND –70 –80 –90 –90 RL = 1k, 3RD –100 10k AV = 2 VS = ±2.
PAGE 18
LT6202/LT6203/LT6204 APPLICATIONS INFORMATION Amplifier Characteristics Figure 1 shows a simplified schematic of the LT6202/ LT6203/LT6204, which has two input differential amplifiers in parallel that are biased on simultaneously when the common mode voltage is at least 1.5V from either rail. This topology allows the input stage to swing from the positive supply voltage to the negative supply voltage. As the common mode voltage swings beyond VCC – 1.
PAGE 19
LT6202/LT6203/LT6204 APPLICATIONS INFORMATION Input Protection There are back-to-back diodes, D1 and D2, across the + and – inputs of these amplifiers to limit the differential input voltage to ±0.7V. The inputs of the LT6202/LT6203/ LT6304 do not have internal resistors in series with the input transistors. This technique is often used to protect the input devices from over voltage that causes excessive currents to flow.
PAGE 20
LT6202/LT6203/LT6204 TYPICAL APPLICATIONS Low Noise, Low Power 1MΩ AC Photodiode Transimpedance Amplifier Figure 3 shows the LT6202 applied as a transimpedance amplifier (TIA). The LT6202 forces the BF862 ultralow-noise JFET source to 0V, with R3 ensuring that the JFET has an IDRAIN of 1mA. The JFET acts as a source follower, buffering the input of the LT6202 and making it suitable for the high impedance feedback elements R1 and R2. The BF862 has a minimum IDSS of 10mA and a pinchoff voltage between –0.
PAGE 21
LT6202/LT6203/LT6204 TYPICAL APPLICATIONS Single-Supply 16-Bit ADC Driver Figure 5 shows the LT6203 driving an LTC1864 unipolar 16-bit A/D converter. The bottom half of the LT6203 is in a gain-of-one configuration and buffers the 0V negative full-scale signal VLOW into the negative input of the LTC1864. The top half of the LT6203 is in a gain-of-ten configuration referenced to the buffered voltage VLOW and drives the positive input of the LTC1864.
PAGE 22
LT6202/LT6203/LT6204 PACKAGE DESCRIPTION Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings. DD Package 8-Lead Plastic DFN (3mm × 3mm) (Reference LTC DWG # 05-08-1698 Rev C) R = 0.125 TYP 5 0.40 ± 0.10 8 0.70 ±0.05 3.5 ±0.05 1.65 ±0.05 2.10 ±0.05 (2 SIDES) PACKAGE OUTLINE PIN 1 TOP MARK (NOTE 6) 4 0.25 ± 0.05 0.75 ±0.05 0.200 REF 0.25 ± 0.05 1.65 ± 0.10 (2 SIDES) 3.00 ±0.10 (4 SIDES) 0.50 BSC 2.38 ±0.05 1 (DD8) DFN 0509 REV C 0.50 BSC 2.38 ±0.
PAGE 23
LT6202/LT6203/LT6204 PACKAGE DESCRIPTION Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings. MS8 Package 8-Lead Plastic MSOP (Reference LTC DWG # 05-08-1660 Rev F) 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 7 6 5 0.52 (.0205) REF RECOMMENDED SOLDER PAD LAYOUT 0.254 (.010) 3.00 ± 0.102 (.118 ± .004) (NOTE 4) 4.90 ± 0.152 (.193 ± .
PAGE 24
LT6202/LT6203/LT6204 PACKAGE DESCRIPTION Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings. S8 Package 8-Lead Plastic Small Outline (Narrow .150 Inch) (Reference LTC DWG # 05-08-1610) .050 BSC .189 – .197 (4.801 – 5.004) NOTE 3 .045 ±.005 8 .245 MIN .160 ±.005 .010 – .020 × 45° (0.254 – 0.508) NOTE: 1. DIMENSIONS IN 5 .150 – .157 (3.810 – 3.988) NOTE 3 1 RECOMMENDED SOLDER PAD LAYOUT .053 – .069 (1.346 – 1.752) 0°– 8° TYP .016 – .050 (0.406 – 1.
PAGE 25
LT6202/LT6203/LT6204 PACKAGE DESCRIPTION Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings. S Package 14-Lead Plastic Small Outline (Narrow .150 Inch) (Reference LTC DWG # 05-08-1610) .337 – .344 (8.560 – 8.738) NOTE 3 .045 ±.005 .050 BSC 14 N 12 11 10 9 8 N .245 MIN .160 ±.005 .228 – .244 (5.791 – 6.197) 1 .030 ±.005 TYP 13 2 3 N/2 N/2 RECOMMENDED SOLDER PAD LAYOUT .010 – .020 × 45° (0.254 – 0.508) .008 – .010 (0.203 – 0.
PAGE 26
LT6202/LT6203/LT6204 PACKAGE DESCRIPTION Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings. 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.
PAGE 27
LT6202/LT6203/LT6204 REVISION HISTORY (Revision history begins at Rev C) REV DATE DESCRIPTION PAGE NUMBER C 5/11 Revised units to MΩ for Input Resistance Common Mode D 12/11 Corrected LT part number in the Description section 3 1 1-12 Added H-grade Removed DD package junction temperature and storage temperature range in Absolute Maximum Ratings and revised TJMAX value for S5 and DD packages and θJA for DD package Revised VOS conditions in the Electrical Characteristics table 2 7, 11 620234fd
PAGE 28
LT6202/LT6203/LT6204 TYPICAL APPLICATION Low Noise Differential Amplifier with Gain Adjust and Common Mode Control 0dB VIN– 6dB 12dB 0dB VIN+ 6dB 12dB C3 5pF C1 270pF R1 402Ω R2 200Ω C2 22pF R7, 402Ω VOUT+ R10, 402Ω V+ R3 100Ω – R4 402Ω R9 402Ω 1/2 LT6203 + 1/2 LT6203 RA V+ R5 200Ω + RB R6 100Ω – VOUT– 0.