Datasheet LT1818, LT1819 (Analog Devices)
| Manufacturer | Analog Devices |
| Description | 400MHz, 2500V/μs, 9mA Single Operational Amplifiers |
| Pages / Page | 18 / 1 — FEATURES. DESCRIPTION. 400MHz Gain Bandwidth Product. 2500V/μs Slew Rate. … |
| File Format / Size | PDF / 1.2 Mb |
| Document Language | English |
FEATURES. DESCRIPTION. 400MHz Gain Bandwidth Product. 2500V/μs Slew Rate. –85dBc Distortion at 5MHz
Model Line for this Datasheet
Text Version of Document
LT1818/LT1819 400MHz, 2500V/µs, 9mA Single/Dual Operational Amplifi ers
FEATURES DESCRIPTION
n
400MHz Gain Bandwidth Product
The LT®1818/LT1819 are single/dual wide bandwidth, high n
2500V/μs Slew Rate
slew rate, low noise and distortion operational amplifi ers n
–85dBc Distortion at 5MHz
with excellent DC performance. The LT1818/LT1819 have n
9mA Supply Current Per Amplifi er
been designed for wider bandwidth and slew rate, much n 6nV/√Hz Input Noise Voltage lower input offset voltage and lower noise and distortion n Unity-Gain Stable than devices with comparable supply current. The circuit n 1.5mV Maximum Input Offset Voltage topology is a voltage feedback amplifi er with the excellent n 8μA Maximum Input Bias Current slewing characteristics of a current feedback amplifi er. n 800nA Maximum Input Offset Current The output drives a 100Ω load to ±3.8V with ±5V sup- n 40mA Minimum Output Current, VOUT = ±3V plies. On a single 5V supply, the output swings from 1V n ±3.5V Minimum Input CMR, VS = ±5V to 4V with a 100Ω load connected to 2.5V. The amplifi er n Specifi ed at ±5V, Single 5V Supplies is unity-gain stable with a 20pF capacitive load without the n Operating Temperature Range: –40°C to 85°C need for a series resistor. Harmonic distortion is –85dBc n Low Profi le (1mm) TSOT-23 (ThinSOT™) Package up to 5MHz for a 2VP-P output at a gain of 2.
APPLICATIONS
The LT1818/LT1819 are manufactured on Linear Tech- nology’s advanced low voltage complementary bipolar n Wideband Amplifi ers process. The LT1818 (single op amp) is available in n Buffers TSOT-23 and SO-8 packages; the LT1819 (dual op amp) n Active Filters is available in MSOP-8 and SO-8 packages. n Video and RF Amplifi cation L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear n Communication Receivers Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. n Cable Drivers n Data Acquisition Systems
TYPICAL APPLICATION FFT of Single Supply ADC Driver
0
Single Supply Unity-Gain ADC Driver for Oversampling Applications
fIN = 5.102539MHz –10 fS = 50Msps –20 VIN = 300mVP-P SFDR = 78dB 5V 5V –30 8192 POINT FFT 2.5VDC –40 NO WINDOWING + OR AVERAGING ±1VAC 51.1Ω LTC1744 –50 LT1818 A + IN 14 BITS –60 50Msps – 18pF 2.5V A – (SET FOR 2VP-P IN –70 FULL SCALE) AMPLITUDE (dBc) 2 3 –80 –90 18189 TA01 –100 –110 0 5M 10M 15M 20M 25M FREQUENCY (Hz) 18189 TA02 18189fb 1 Document Outline FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION ORDER INFORMATION E LECTRICAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS APPLICATIONS INFORMATION TYPICAL APPLICATION SIMPLIFIED SCHEMATIC PACKAGE DESCRIPTION REVISION HISTORY TYPICAL APPLICATION RELATED PARTS
FEATURES DESCRIPTION
n
400MHz Gain Bandwidth Product
The LT®1818/LT1819 are single/dual wide bandwidth, high n
2500V/μs Slew Rate
slew rate, low noise and distortion operational amplifi ers n
–85dBc Distortion at 5MHz
with excellent DC performance. The LT1818/LT1819 have n
9mA Supply Current Per Amplifi er
been designed for wider bandwidth and slew rate, much n 6nV/√Hz Input Noise Voltage lower input offset voltage and lower noise and distortion n Unity-Gain Stable than devices with comparable supply current. The circuit n 1.5mV Maximum Input Offset Voltage topology is a voltage feedback amplifi er with the excellent n 8μA Maximum Input Bias Current slewing characteristics of a current feedback amplifi er. n 800nA Maximum Input Offset Current The output drives a 100Ω load to ±3.8V with ±5V sup- n 40mA Minimum Output Current, VOUT = ±3V plies. On a single 5V supply, the output swings from 1V n ±3.5V Minimum Input CMR, VS = ±5V to 4V with a 100Ω load connected to 2.5V. The amplifi er n Specifi ed at ±5V, Single 5V Supplies is unity-gain stable with a 20pF capacitive load without the n Operating Temperature Range: –40°C to 85°C need for a series resistor. Harmonic distortion is –85dBc n Low Profi le (1mm) TSOT-23 (ThinSOT™) Package up to 5MHz for a 2VP-P output at a gain of 2.
APPLICATIONS
The LT1818/LT1819 are manufactured on Linear Tech- nology’s advanced low voltage complementary bipolar n Wideband Amplifi ers process. The LT1818 (single op amp) is available in n Buffers TSOT-23 and SO-8 packages; the LT1819 (dual op amp) n Active Filters is available in MSOP-8 and SO-8 packages. n Video and RF Amplifi cation L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear n Communication Receivers Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. n Cable Drivers n Data Acquisition Systems
TYPICAL APPLICATION FFT of Single Supply ADC Driver
0
Single Supply Unity-Gain ADC Driver for Oversampling Applications
fIN = 5.102539MHz –10 fS = 50Msps –20 VIN = 300mVP-P SFDR = 78dB 5V 5V –30 8192 POINT FFT 2.5VDC –40 NO WINDOWING + OR AVERAGING ±1VAC 51.1Ω LTC1744 –50 LT1818 A + IN 14 BITS –60 50Msps – 18pF 2.5V A – (SET FOR 2VP-P IN –70 FULL SCALE) AMPLITUDE (dBc) 2 3 –80 –90 18189 TA01 –100 –110 0 5M 10M 15M 20M 25M FREQUENCY (Hz) 18189 TA02 18189fb 1 Document Outline FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION ORDER INFORMATION E LECTRICAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS APPLICATIONS INFORMATION TYPICAL APPLICATION SIMPLIFIED SCHEMATIC PACKAGE DESCRIPTION REVISION HISTORY TYPICAL APPLICATION RELATED PARTS
