Datasheet LTC6432-15 (Analog Devices)
| Manufacturer | Analog Devices |
| Description | 100kHz to 1.4GHz Differential ADC Driver/IF Amplifier |
| Pages / Page | 20 / 1 — FEATURES. DESCRIPTION. 100kHz to 1400MHz Bandwidth. 54.4dBm OIP3 at 1MHz … |
| File Format / Size | PDF / 1.6 Mb |
| Document Language | English |
FEATURES. DESCRIPTION. 100kHz to 1400MHz Bandwidth. 54.4dBm OIP3 at 1MHz into a 100Ω Diff Load
Model Line for this Datasheet
Text Version of Document
LTC6432-15 100kHz to 1.4GHz Differential ADC Driver/IF Amplifier
FEATURES DESCRIPTION
n
100kHz to 1400MHz Bandwidth
The LTC®6432-15 is an ultra-high dynamic range differen- n
54.4dBm OIP3 at 1MHz into a 100Ω Diff Load
tial gain block amplifier designed to drive high resolution, n
48.0dBm OIP3 at 150MHz into a 100Ω Diff Load
high speed ADCs. It offers a full GHz of data bandwidth for n
Up to 15dBm Output Power
complex spectrally efficient modulations schemes or where n
NF = 3.0dB at 240MHz
resistance to blockers is critical. This unique device can n
Low 1/f Noise Corner
simultaneously achieve low noise, incomparable linearity n
User Defined Low Frequency
and flat gain over the 100kHz to 1GHz band. n
15.2dB Fixed Power Gain
Unlike wideband GaAs PHEMTs, MESFETs and GaN FETs, n
A-Grade 100% OIP3 Tested at 150MHz
this SiGe based amplifier exhibits low 1/f noise and can n 0.8 nV/√Hz Total Input Noise be used down to 100kHz. n >2.75VP-P Linear Output Swing n P1dB = 22.5dBm The LTC6432-15 is designed for ease of use requiring a n Insensitive to V minimum of support components. Impedance matching, CC Variation n Input/Output Internally Matched to 100Ω Differential temperature compensation and bias control are handled n Single 5V Supply internally to ensure consistent performance over environ- n DC Power = 850mW mental changes. n Unconditionally Stable All A-Grade LTC6432-15 devices are tested and guaran- teed for OIP3 at 150MHz. The LTC6432-15 is housed in
APPLICATIONS
a 4mm × 4mm, 24L, QFN package with an exposed pad for thermal management and low inductance. n Differential 1GHz Bandwidth ADC Driver n Wideband Test Instrument Amplifier For a single-ended 50Ω IF Gain Block with similar perfor- n Differential IF Amplifier mance, see the related LTC6433-15. n 50Ω/75Ω Balanced IF Amplifier L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Analog Devices, Inc. All other trademarks are the property of their respective owners.
TYPICAL APPLICATION
350Ω
OIP3 and S21 vs Frequency
470µH 250Ω 1µF 1µF 1µF 60 60 OIP3 S21 240nH 280Ω 50 50 +IN GND VCC DNC DNC +FDBK 1µF DNC +OUT 40 V GAIN S21 (dB) CC = 5V 40 1:2 DNC GND INPUT 1:1 T. OIP3 (dBm) POUT = 4dBm/TONE • • DNC +IN +OUT +IN DNC BALUN T P ZIN = ZOUT = 100Ω DIFF • 30 T 30 1µF DNC LTC6432-15 16-BIT ADC CASE = 30°C T_DIODE • LP FILTER NFILT2 DNC 1µF –IN –OUT –IN 20 20 –OUT NFILT1 10 10 1µF –IN GND V DNC DNC –FDBK OUTPUT INTERCEP CC 240nH 280Ω 0 0 0.1 1 10 100 1k 1µF 1µF 1µF FREQUENCY (MHz) 643215 TA01b 470µH 250Ω 1nF 1µF 350Ω 643215 TA01a VCC = 5V 643215f For more information www.linear.com/LTC6432-15 1 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information DC Electrical Characteristics AC Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Test Circuit A Operation Applications Information Differential S Parameters Package Description Typical Application Related Parts
FEATURES DESCRIPTION
n
100kHz to 1400MHz Bandwidth
The LTC®6432-15 is an ultra-high dynamic range differen- n
54.4dBm OIP3 at 1MHz into a 100Ω Diff Load
tial gain block amplifier designed to drive high resolution, n
48.0dBm OIP3 at 150MHz into a 100Ω Diff Load
high speed ADCs. It offers a full GHz of data bandwidth for n
Up to 15dBm Output Power
complex spectrally efficient modulations schemes or where n
NF = 3.0dB at 240MHz
resistance to blockers is critical. This unique device can n
Low 1/f Noise Corner
simultaneously achieve low noise, incomparable linearity n
User Defined Low Frequency
and flat gain over the 100kHz to 1GHz band. n
15.2dB Fixed Power Gain
Unlike wideband GaAs PHEMTs, MESFETs and GaN FETs, n
A-Grade 100% OIP3 Tested at 150MHz
this SiGe based amplifier exhibits low 1/f noise and can n 0.8 nV/√Hz Total Input Noise be used down to 100kHz. n >2.75VP-P Linear Output Swing n P1dB = 22.5dBm The LTC6432-15 is designed for ease of use requiring a n Insensitive to V minimum of support components. Impedance matching, CC Variation n Input/Output Internally Matched to 100Ω Differential temperature compensation and bias control are handled n Single 5V Supply internally to ensure consistent performance over environ- n DC Power = 850mW mental changes. n Unconditionally Stable All A-Grade LTC6432-15 devices are tested and guaran- teed for OIP3 at 150MHz. The LTC6432-15 is housed in
APPLICATIONS
a 4mm × 4mm, 24L, QFN package with an exposed pad for thermal management and low inductance. n Differential 1GHz Bandwidth ADC Driver n Wideband Test Instrument Amplifier For a single-ended 50Ω IF Gain Block with similar perfor- n Differential IF Amplifier mance, see the related LTC6433-15. n 50Ω/75Ω Balanced IF Amplifier L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Analog Devices, Inc. All other trademarks are the property of their respective owners.
TYPICAL APPLICATION
350Ω
OIP3 and S21 vs Frequency
470µH 250Ω 1µF 1µF 1µF 60 60 OIP3 S21 240nH 280Ω 50 50 +IN GND VCC DNC DNC +FDBK 1µF DNC +OUT 40 V GAIN S21 (dB) CC = 5V 40 1:2 DNC GND INPUT 1:1 T. OIP3 (dBm) POUT = 4dBm/TONE • • DNC +IN +OUT +IN DNC BALUN T P ZIN = ZOUT = 100Ω DIFF • 30 T 30 1µF DNC LTC6432-15 16-BIT ADC CASE = 30°C T_DIODE • LP FILTER NFILT2 DNC 1µF –IN –OUT –IN 20 20 –OUT NFILT1 10 10 1µF –IN GND V DNC DNC –FDBK OUTPUT INTERCEP CC 240nH 280Ω 0 0 0.1 1 10 100 1k 1µF 1µF 1µF FREQUENCY (MHz) 643215 TA01b 470µH 250Ω 1nF 1µF 350Ω 643215 TA01a VCC = 5V 643215f For more information www.linear.com/LTC6432-15 1 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information DC Electrical Characteristics AC Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Test Circuit A Operation Applications Information Differential S Parameters Package Description Typical Application Related Parts
