Datasheet LTC6244 (Analog Devices)
| Fabricante | Analog Devices |
| Descripción | Dual 50MHz, Low Noise, Rail-to-Rail, CMOS Op Amp |
| Páginas / Página | 26 / 1 — FEATURES. DESCRIPTION. Input Bias Current: 1pA (Typ at 25°C). Low Offset … |
| Formato / tamaño de archivo | PDF / 367 Kb |
| Idioma del documento | Inglés |
FEATURES. DESCRIPTION. Input Bias Current: 1pA (Typ at 25°C). Low Offset Voltage: 100μV Max. Low Offset Drift: 2.5μV/°C Max
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LTC6244 Dual 50MHz, Low Noise, Rail-to-Rail, CMOS Op Amp
FEATURES DESCRIPTION
n
Input Bias Current: 1pA (Typ at 25°C)
The LTC®6244 is a dual high speed, unity-gain stable CMOS n
Low Offset Voltage: 100μV Max
op amp that features a 50MHz gain bandwidth, 40V/μs slew n
Low Offset Drift: 2.5μV/°C Max
rate, 1pA of input bias current, low input capacitance and n 0.1Hz to 10Hz Noise: 1.5μVP-P rail-to-rail output swing. The 0.1Hz to 10Hz noise is just n Slew Rate: 40V/μs 1.5μVP-P and 1kHz noise is guaranteed to be less than n Gain Bandwidth Product: 50MHz 12nV/√Hz. This excellent AC and noise performance is n Output Swings Rail-to-Rail combined with wide supply range operation, a maximum n Supply Operation: offset voltage of just 100μV and drift of only 2.5μV/°C, 2.8V to 6V LTC6244 making it suitable for use in many fast signal processing 2.8V to ±5.25V LTC6244HV applications, such as photodiode amplifi ers. n Low Input Capacitance: 2.1pF This op amp has an output stage that swings within 35mV n Available in 8-Pin MSOP and Tiny DFN Packages of either supply rail to maximize the signal dynamic range in low supply applications. The input common mode range extends to the negative supply. It is fully specifi ed
APPLICATIONS
on 3V and 5V, and an HV version guarantees operation n Photodiode Amplifi ers on supplies of ±5V. n Charge Coupled Amplifi ers n The LTC6244 is available in the 8-pin MSOP, and for com- Low Noise Signal Processing n pact designs, it is packaged in the tiny dual fi ne pitch lead Active Filters n free (DFN) package. Medical Instrumentation n High Impedance Transducer Amplifi er L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners.
TYPICAL APPLICATION Very Low Noise Large Area Photodiode VOS Distribution
120 0.25pF LTC6244MS8 110 VS = 5V, 0V 5V PHILIPS 100 VCM = 2.5V BF862 T 1M 90 A = 25°C JFET 80 5V VOUT = 1M • IPD 70 4.99k BW = 350kHz 60 –5V – NOISE = 291nV AT 10kHz 1/2 50 I V PD LTC6244HV OUT 4.7μF* NUMBER OF UNITS 40 + 30 4.99k 20 V –5V BB 6244 TA01a 10 0 HAMAMATSU LARGE AREA –60 –40 –20 0 20 40 60 PHOTODIODE S1227-1010BQ INPUT OFFSET VOLTAGE (μV) CPD = 3000pF 6244 TA01b * CAN BE MICROPHONIC, FILM, X7R, IF NEEDED. 6244fb 1
FEATURES DESCRIPTION
n
Input Bias Current: 1pA (Typ at 25°C)
The LTC®6244 is a dual high speed, unity-gain stable CMOS n
Low Offset Voltage: 100μV Max
op amp that features a 50MHz gain bandwidth, 40V/μs slew n
Low Offset Drift: 2.5μV/°C Max
rate, 1pA of input bias current, low input capacitance and n 0.1Hz to 10Hz Noise: 1.5μVP-P rail-to-rail output swing. The 0.1Hz to 10Hz noise is just n Slew Rate: 40V/μs 1.5μVP-P and 1kHz noise is guaranteed to be less than n Gain Bandwidth Product: 50MHz 12nV/√Hz. This excellent AC and noise performance is n Output Swings Rail-to-Rail combined with wide supply range operation, a maximum n Supply Operation: offset voltage of just 100μV and drift of only 2.5μV/°C, 2.8V to 6V LTC6244 making it suitable for use in many fast signal processing 2.8V to ±5.25V LTC6244HV applications, such as photodiode amplifi ers. n Low Input Capacitance: 2.1pF This op amp has an output stage that swings within 35mV n Available in 8-Pin MSOP and Tiny DFN Packages of either supply rail to maximize the signal dynamic range in low supply applications. The input common mode range extends to the negative supply. It is fully specifi ed
APPLICATIONS
on 3V and 5V, and an HV version guarantees operation n Photodiode Amplifi ers on supplies of ±5V. n Charge Coupled Amplifi ers n The LTC6244 is available in the 8-pin MSOP, and for com- Low Noise Signal Processing n pact designs, it is packaged in the tiny dual fi ne pitch lead Active Filters n free (DFN) package. Medical Instrumentation n High Impedance Transducer Amplifi er L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners.
TYPICAL APPLICATION Very Low Noise Large Area Photodiode VOS Distribution
120 0.25pF LTC6244MS8 110 VS = 5V, 0V 5V PHILIPS 100 VCM = 2.5V BF862 T 1M 90 A = 25°C JFET 80 5V VOUT = 1M • IPD 70 4.99k BW = 350kHz 60 –5V – NOISE = 291nV AT 10kHz 1/2 50 I V PD LTC6244HV OUT 4.7μF* NUMBER OF UNITS 40 + 30 4.99k 20 V –5V BB 6244 TA01a 10 0 HAMAMATSU LARGE AREA –60 –40 –20 0 20 40 60 PHOTODIODE S1227-1010BQ INPUT OFFSET VOLTAGE (μV) CPD = 3000pF 6244 TA01b * CAN BE MICROPHONIC, FILM, X7R, IF NEEDED. 6244fb 1