Datasheet LT1801, LT1802 (Analog Devices)
| Hersteller | Analog Devices |
| Beschreibung | Quad 80MHz, 25V/µs Low Power Rail-to-Rail Input and Output Precision Op Amps |
| Seiten / Seite | 20 / 1 — FEATURES. DESCRIPTION. Gain Bandwidth Product: 80MHz. Input Common Mode … |
| Dateiformat / Größe | PDF / 354 Kb |
| Dokumentensprache | Englisch |
FEATURES. DESCRIPTION. Gain Bandwidth Product: 80MHz. Input Common Mode Range Includes Both Rails. Output Swings Rail-to-Rail
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LT1801/LT1802 Dual/Quad 80MHz, 25V/µs Low Power Rail-to-Rail Input and Output Precision Op Amps
FEATURES DESCRIPTION
n
Gain Bandwidth Product: 80MHz
The LT®1801/LT1802 are dual/quad, low power, high speed n
Input Common Mode Range Includes Both Rails
rail-to-rail input and output operational amplifi ers with n
Output Swings Rail-to-Rail
excellent DC performance. The LT1801/LT1802 feature n
Low Voltage Operation: Single or Split Supplies
reduced supply current, lower input offset voltage, lower
2.3V to 12.6V
input bias current and higher DC gain than other devices n
Low Quiescent Current: 2mA/Amplifi er Max
with comparable bandwidth. n
Input Offset Voltage: 350μV Max
Typically, the LT1801/LT1802 have an input offset voltage n
Input Bias Current: 250nA Max
of less than 100μV, an input bias current of less than 50nA n 3mm × 3mm × 0.8mm DFN Package and an open-loop gain of 85 thousand. n Large Output Current: 50mA Typ n Low Voltage Noise: 8.5nV/√Hz Typ The LT1801/LT1802 have an input range that includes n Slew Rate: 25V/μs Typ both supply rails and an output that swings within 20mV n Common Mode Rejection: 105dB Typ of either supply rail to maximize the signal dynamic range n Power Supply Rejection: 97dB Typ in low supply applications. n Open-Loop Gain: 85V/mV Typ The LT1801/LT1802 maintain their performance for sup- n Operating Temperature Range: – 40°C to 85°C plies from 2.3V to 12.6V and are specifi ed at 3V, 5V and n LT1801 is Available in 8-Lead SO, MS8 and DFN ±5V supplies. The inputs can be driven beyond the supplies Packages without damage or phase reversal of the output. n LT1802 is Available in 14-Lead SO Package The LT1801 is available in the MS8, SO-8 and the 3mm
APPLICATIONS
× 3mm × 0.8mm dual fi ne pitch leadless package (DFN) with the standard dual op amp pinout. The LT1802 features n Low Voltage, High Frequency Signal Processing the standard quad op amp confi guration and is available n Driving A/D Converters in the 14-pin plastic SO package. The LT1801/LT1802 can n Rail-to-Rail Buffer Amplifi ers be used as plug-in replacements for many op amps to n Active Filters improve input/output range and performance. n Video Line Driver For a single version of these amplifi ers, see the LT1800 L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. data sheet.
TYPICAL APPLICATION 1MHz Filter Frequency Response 3V, 1MHz, 4th Order Butterworth Filter
0 –20 909Ω 47pF –40 1.1k 22pF 909Ω 2.67k – GAIN (dB) –60 V 3V IN 1.1k 2.21k 220pF – 1/2 LT1801 –80 + 470pF 1/2 LT1801 VOUT –100 + VS/2 –120 18012 TA01 1k 10k 100k 1M 10M 100M FREQUENCY (Hz) 18012 TA02 18012fc 1
FEATURES DESCRIPTION
n
Gain Bandwidth Product: 80MHz
The LT®1801/LT1802 are dual/quad, low power, high speed n
Input Common Mode Range Includes Both Rails
rail-to-rail input and output operational amplifi ers with n
Output Swings Rail-to-Rail
excellent DC performance. The LT1801/LT1802 feature n
Low Voltage Operation: Single or Split Supplies
reduced supply current, lower input offset voltage, lower
2.3V to 12.6V
input bias current and higher DC gain than other devices n
Low Quiescent Current: 2mA/Amplifi er Max
with comparable bandwidth. n
Input Offset Voltage: 350μV Max
Typically, the LT1801/LT1802 have an input offset voltage n
Input Bias Current: 250nA Max
of less than 100μV, an input bias current of less than 50nA n 3mm × 3mm × 0.8mm DFN Package and an open-loop gain of 85 thousand. n Large Output Current: 50mA Typ n Low Voltage Noise: 8.5nV/√Hz Typ The LT1801/LT1802 have an input range that includes n Slew Rate: 25V/μs Typ both supply rails and an output that swings within 20mV n Common Mode Rejection: 105dB Typ of either supply rail to maximize the signal dynamic range n Power Supply Rejection: 97dB Typ in low supply applications. n Open-Loop Gain: 85V/mV Typ The LT1801/LT1802 maintain their performance for sup- n Operating Temperature Range: – 40°C to 85°C plies from 2.3V to 12.6V and are specifi ed at 3V, 5V and n LT1801 is Available in 8-Lead SO, MS8 and DFN ±5V supplies. The inputs can be driven beyond the supplies Packages without damage or phase reversal of the output. n LT1802 is Available in 14-Lead SO Package The LT1801 is available in the MS8, SO-8 and the 3mm
APPLICATIONS
× 3mm × 0.8mm dual fi ne pitch leadless package (DFN) with the standard dual op amp pinout. The LT1802 features n Low Voltage, High Frequency Signal Processing the standard quad op amp confi guration and is available n Driving A/D Converters in the 14-pin plastic SO package. The LT1801/LT1802 can n Rail-to-Rail Buffer Amplifi ers be used as plug-in replacements for many op amps to n Active Filters improve input/output range and performance. n Video Line Driver For a single version of these amplifi ers, see the LT1800 L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. data sheet.
TYPICAL APPLICATION 1MHz Filter Frequency Response 3V, 1MHz, 4th Order Butterworth Filter
0 –20 909Ω 47pF –40 1.1k 22pF 909Ω 2.67k – GAIN (dB) –60 V 3V IN 1.1k 2.21k 220pF – 1/2 LT1801 –80 + 470pF 1/2 LT1801 VOUT –100 + VS/2 –120 18012 TA01 1k 10k 100k 1M 10M 100M FREQUENCY (Hz) 18012 TA02 18012fc 1