Datasheet AD8273 (Analog Devices) - 3
| 制造商 | Analog Devices |
| 描述 | Very Low Distortion, Dual-Channel, High Precision Difference Amplifier |
| 页数 / 页 | 16 / 3 — AD8273. SPECIFICATIONS. Table 2. Parameter Conditions. Min. Typ. Max. Unit |
| 修订版 | B |
| 文件格式/大小 | PDF / 331 Kb |
| 文件语言 | 英语 |
AD8273. SPECIFICATIONS. Table 2. Parameter Conditions. Min. Typ. Max. Unit
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AD8273 SPECIFICATIONS
VS = ±15 V, VREF = 0 V, TA = 25°C, G = ½, RL = 2 kΩ, unless otherwise noted.
Table 2. Parameter Conditions Min Typ Max Unit
DYNAMIC PERFORMANCE Bandwidth 20 MHz Slew Rate 20 V/μs Settling Time to 0.1% 10 V step on output, CL = 100 pF 670 750 ns Settling Time to 0.01% 10 V step on output, CL = 100 pF 750 800 ns Channel Separation f = 1 kHz 130 dB NOISE/DISTORTION1 THD + Noise (THD + N) f = 1 kHz, VOUT = 10 V p-p, 600 Ω load 0.00025 % Noise Floor, RTO2 20 kHz BW −106 dBu Output Voltage Noise (Referred to Output) f = 20 Hz to 20 kHz 3.5 μV rms f = 1 kHz 26 nV/√Hz GAIN Gain Error 0.05 % Gain Drift −40°C to +85°C 2 10 ppm/°C Gain Nonlinearity VOUT = 10 V p-p, 600 Ω load 2 ppm INPUT CHARACTERISTICS Offset3 Referred to output 100 700 μV vs. Temperature −40°C to +85°C 3 μV/°C vs. Power Supply VS = ±2.5 V to ±18 V 2 5 μV/V Common-Mode Rejection Ratio VCM = ±40 V, RS = 0 Ω, referred to input 77 86 dB Input Voltage Range4 −3VS + 4.5 +3VS − 4.5 V Impedance5 Differential VCM = 0 V 36 kΩ Common Mode6 9 kΩ OUTPUT CHARACTERISTICS Output Swing −VS + 1.5 +VS − 1.5 V Short-Circuit Current Limit Sourcing 100 mA Sinking 60 mA Capacitive Load Drive G = ½ 200 pF G = 2 1200 pF POWER SUPPLY Supply Current (per Amplifier) 2.5 mA TEMPERATURE RANGE Specified Performance −40 +85 °C 1 Includes amplifier voltage and current noise, as well as noise of internal resistors. 2 dBu = 20 log (V rms/0.7746). 3 Includes input bias and offset current errors. 4 May also be limited by absolute maximum input voltage or by the output swing. See the Absolute Maximum Ratings section and Figure 9 through Figure 12 for details. 5 Internal resistors are trimmed to be ratio matched but have ±20% absolute accuracy. 6 Common mode is calculated looking into both inputs. Common-mode impedance looking into only one input is 18 kΩ. Rev. B | Page 3 of 16 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS MAXIMUM POWER DISSIPATION ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION CONFIGURATIONS POWER SUPPLIES OUTLINE DIMENSIONS ORDERING GUIDE
AD8273 SPECIFICATIONS
VS = ±15 V, VREF = 0 V, TA = 25°C, G = ½, RL = 2 kΩ, unless otherwise noted.
Table 2. Parameter Conditions Min Typ Max Unit
DYNAMIC PERFORMANCE Bandwidth 20 MHz Slew Rate 20 V/μs Settling Time to 0.1% 10 V step on output, CL = 100 pF 670 750 ns Settling Time to 0.01% 10 V step on output, CL = 100 pF 750 800 ns Channel Separation f = 1 kHz 130 dB NOISE/DISTORTION1 THD + Noise (THD + N) f = 1 kHz, VOUT = 10 V p-p, 600 Ω load 0.00025 % Noise Floor, RTO2 20 kHz BW −106 dBu Output Voltage Noise (Referred to Output) f = 20 Hz to 20 kHz 3.5 μV rms f = 1 kHz 26 nV/√Hz GAIN Gain Error 0.05 % Gain Drift −40°C to +85°C 2 10 ppm/°C Gain Nonlinearity VOUT = 10 V p-p, 600 Ω load 2 ppm INPUT CHARACTERISTICS Offset3 Referred to output 100 700 μV vs. Temperature −40°C to +85°C 3 μV/°C vs. Power Supply VS = ±2.5 V to ±18 V 2 5 μV/V Common-Mode Rejection Ratio VCM = ±40 V, RS = 0 Ω, referred to input 77 86 dB Input Voltage Range4 −3VS + 4.5 +3VS − 4.5 V Impedance5 Differential VCM = 0 V 36 kΩ Common Mode6 9 kΩ OUTPUT CHARACTERISTICS Output Swing −VS + 1.5 +VS − 1.5 V Short-Circuit Current Limit Sourcing 100 mA Sinking 60 mA Capacitive Load Drive G = ½ 200 pF G = 2 1200 pF POWER SUPPLY Supply Current (per Amplifier) 2.5 mA TEMPERATURE RANGE Specified Performance −40 +85 °C 1 Includes amplifier voltage and current noise, as well as noise of internal resistors. 2 dBu = 20 log (V rms/0.7746). 3 Includes input bias and offset current errors. 4 May also be limited by absolute maximum input voltage or by the output swing. See the Absolute Maximum Ratings section and Figure 9 through Figure 12 for details. 5 Internal resistors are trimmed to be ratio matched but have ±20% absolute accuracy. 6 Common mode is calculated looking into both inputs. Common-mode impedance looking into only one input is 18 kΩ. Rev. B | Page 3 of 16 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS MAXIMUM POWER DISSIPATION ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION CONFIGURATIONS POWER SUPPLIES OUTLINE DIMENSIONS ORDERING GUIDE