Datasheet LTC6406 (Analog Devices)
| Manufacturer | Analog Devices |
| Description | 3GHz, Low Noise, Rail-to-Rail Input Differential Amplifier/Driver |
| Pages / Page | 24 / 1 — FEATURES. DESCRIPTION. Low Noise: 1.6nV/√Hz RTI. Low Power: 18mA at 3V. … |
| File Format / Size | PDF / 333 Kb |
| Document Language | English |
FEATURES. DESCRIPTION. Low Noise: 1.6nV/√Hz RTI. Low Power: 18mA at 3V. Low Distortion (HD2/HD3):. –80dBc/–69dBc at 50MHz, 2VP-P
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LTC6406 3GHz, Low Noise, Rail-to-Rail Input Differential Amplifi er/Driver
FEATURES DESCRIPTION
n
Low Noise: 1.6nV/√Hz RTI
The LTC®6406 is a very low noise, low distortion, fully n
Low Power: 18mA at 3V
differential input/output amplifi er optimized for 3V, single n
Low Distortion (HD2/HD3):
supply operation. The LTC6406 input common mode range
–80dBc/–69dBc at 50MHz, 2VP-P
is rail-to-rail, while the output common mode voltage is
–104dBc/–90dBc at 20MHz, 2VP-P
independently adjustable by applying a voltage on the n
Rail-to-Rail Differential Input
VOCM pin. This makes the LTC6406 ideal for level-shifting n 2.7V to 3.5V Supply Voltage Range signals with a wide common mode range for driving 12-bit n Fully Differential Input and Output to 16-bit single supply, differential input ADCs. n Adjustable Output Common Mode Voltage A 3GHz gain-bandwidth product results in 70dB linearity for n 800MHz –3dB Bandwidth with AV = 1 50MHz input signals. The LTC6406 is unity-gain stable and n Gain-Bandwidth Product: 3GHz the closed-loop bandwidth extends from DC to 800MHz. n Low Power Shutdown The output voltage swing extends from near ground to n Available in 8-Lead MSOP and Tiny 16-Lead 2V, to be compatible with a wide range of ADC converter 3mm × 3mm × 0.75mm QFN Packages input requirements. The LTC6406 draws only 18mA, and has a hardware shutdown feature which reduces current
APPLICATIONS
consumption to 300μA. n Differential Input ADC Driver The LTC6406 is available in a compact 3mm × 3mm 16-pin n Single-Ended to Differential Conversion leadless QFN package as well as an 8-lead MSOP package, n Level-Shifting Ground-Referenced Signals and operates over a –40°C to 85°C temperature range. n Level-Shifting VCC-Referenced Signals L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear n High Linearity Direct Conversion Receivers Technology Corporation. All other trademarks are the property of their respective owners.
TYPICAL APPLICATION ADC Driver: Single-Ended Input to Differential Output with Common Mode Level Shifting Harmonic Distortion vs Frequency
1.8pF –30 VS = 3V VOCM = VICM = 1.25V –40 V RLOAD = 800Ω IN 150Ω 150Ω VOUTDIFF = 2VP-P –50 3V DIFFERENTIAL INPUTS 3V –60 2ND, R V I = RF = 150Ω DD – + 2ND, R +INA TION (dBc) –70 I = RF = 500Ω 3RD, RI = RF = 150Ω VOCM LTC6406 LTC22xx ADC 3RD, RI = RF = 500Ω 1.25V –80 DISTOR + – –INA –90 GND –100 150Ω 150Ω –110 6406 TA01 1 10 100 FREQUENCY (MHz) 6406 TA01b 1.8pF 6406fc 1
FEATURES DESCRIPTION
n
Low Noise: 1.6nV/√Hz RTI
The LTC®6406 is a very low noise, low distortion, fully n
Low Power: 18mA at 3V
differential input/output amplifi er optimized for 3V, single n
Low Distortion (HD2/HD3):
supply operation. The LTC6406 input common mode range
–80dBc/–69dBc at 50MHz, 2VP-P
is rail-to-rail, while the output common mode voltage is
–104dBc/–90dBc at 20MHz, 2VP-P
independently adjustable by applying a voltage on the n
Rail-to-Rail Differential Input
VOCM pin. This makes the LTC6406 ideal for level-shifting n 2.7V to 3.5V Supply Voltage Range signals with a wide common mode range for driving 12-bit n Fully Differential Input and Output to 16-bit single supply, differential input ADCs. n Adjustable Output Common Mode Voltage A 3GHz gain-bandwidth product results in 70dB linearity for n 800MHz –3dB Bandwidth with AV = 1 50MHz input signals. The LTC6406 is unity-gain stable and n Gain-Bandwidth Product: 3GHz the closed-loop bandwidth extends from DC to 800MHz. n Low Power Shutdown The output voltage swing extends from near ground to n Available in 8-Lead MSOP and Tiny 16-Lead 2V, to be compatible with a wide range of ADC converter 3mm × 3mm × 0.75mm QFN Packages input requirements. The LTC6406 draws only 18mA, and has a hardware shutdown feature which reduces current
APPLICATIONS
consumption to 300μA. n Differential Input ADC Driver The LTC6406 is available in a compact 3mm × 3mm 16-pin n Single-Ended to Differential Conversion leadless QFN package as well as an 8-lead MSOP package, n Level-Shifting Ground-Referenced Signals and operates over a –40°C to 85°C temperature range. n Level-Shifting VCC-Referenced Signals L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear n High Linearity Direct Conversion Receivers Technology Corporation. All other trademarks are the property of their respective owners.
TYPICAL APPLICATION ADC Driver: Single-Ended Input to Differential Output with Common Mode Level Shifting Harmonic Distortion vs Frequency
1.8pF –30 VS = 3V VOCM = VICM = 1.25V –40 V RLOAD = 800Ω IN 150Ω 150Ω VOUTDIFF = 2VP-P –50 3V DIFFERENTIAL INPUTS 3V –60 2ND, R V I = RF = 150Ω DD – + 2ND, R +INA TION (dBc) –70 I = RF = 500Ω 3RD, RI = RF = 150Ω VOCM LTC6406 LTC22xx ADC 3RD, RI = RF = 500Ω 1.25V –80 DISTOR + – –INA –90 GND –100 150Ω 150Ω –110 6406 TA01 1 10 100 FREQUENCY (MHz) 6406 TA01b 1.8pF 6406fc 1
