Datasheet LTC6915 (Analog Devices) - 3
| Hersteller | Analog Devices |
| Beschreibung | Zero Drift, Precision Instrumentation Amplifier with Digitally Programmable Gain |
| Seiten / Seite | 18 / 3 — elecTrical characTerisTics. The. denotes the specifications which apply … |
| Dateiformat / Größe | PDF / 297 Kb |
| Dokumentensprache | Englisch |
elecTrical characTerisTics. The. denotes the specifications which apply over the full operating
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LTC6915
elecTrical characTerisTics The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS V+ = 3V, V– = 0V, VREF = 200mV
Gain Error (Note 2) AV = 1 (RL =10k) l –0.075 0 0.075 % Gain Error (Note 2) AV = 2 to 32 (RL = 10k) l –0.5 0 0.5 % Gain Error (Note 2) AV = 64 to 1024 (RL = 10k) l –0.6 –0.1 0.6 % Gain Error (Note 2) AV = 2048, 4096 (RL = 10k) l –1 –0.2 1.0 % Gain Nonlinearity AV = 1 l 3 15 ppm VOS Input Offset Voltage (Note 3) VCM = 200mV –3 ±10 µV Average Input Offset Drift (Note 3) TA = –40°C to 85°C l ±50 nV/°C TA = 85°C to 125°C l ±100 nV/°C IB Average Input Bias Current (Note 4) VCM = 1.2V l 5 10 nA IOS Average Input Offset Current (Note 4) VCM = 1.2V l 1.5 3 nA en Input Noise Voltage DC to 10Hz 2.5 µVP-P
V+ = 3V, V– = 0V, VREF = 200mV
CMRR Common Mode Rejection Ratio AV = 1024, VCM = 0V to 3V, LTC6915C l 100 119 dB AV = 1024, VCM = 0.1V to 2.9V, LTC6915I l 100 119 dB AV = 1024, VCM = 0V to 3V, LTC6915I l 95 119 dB AV = 1024, VCM = 0.1V to 2.9V, LTC6915H l 100 dB AV = 1024, VCM = 0V to 2.97V, LTC6915H l 85 dB PSRR Power Supply Rejection Ratio (Note 5) VS = 2.7V to 6V l 110 116 dB Output Voltage Swing High (Referenced to V–) Sourcing 200µA l 2.95 2.98 V Sourcing 2mA l 2.75 2.87 V Output Voltage Swing Low (Referenced to V–) Sinking 200µA l 18 50 mV Sinking 2mA l 130 300 mV Supply Current, Parallel Mode No Load at OUT, VCM = 200mV l 0.88 1.3 mA Supply Current, Serial Mode (Note 6) No Load at OUT, Capacitive Load at l 1.1 1.65 mA DOUT (CL) = 15pF, Continuous CLK Frequency = 4MHz, CS = LOW, Gain Control Code = 0001 Supply Current Shutdown VSHDN = 2.7V (Hardware Shutdown) l 1 4 µA VSHDN = 1V, Gain Control Code = 0000 l 125 180 µA (Software Shutdown) SHDN Input High l 2.7 V SHDN Input Low l 1 V SHDN and HOLD_THRU Input Current (Note 2) l 5 µA Internal Op Amp Gain Bandwidth 200 kHz Slew Rate 0.2 V/µs Internal Sampling Frequency 3 kHz
V+ = 5V, V– = 0V, VREF = 200mV
Gain Error (Note 2) AV = 1 (RL = 10k) l –0.075 0 0.075 % Gain Error (Note 2) AV = 2 to 32 (RL= 10k) l –0.5 0 0.5 % Gain Error (Note 2) AV = 64 to 1024 (RL = 10k) l –0.6 –0.1 0.6 % Gain Error (Note 2) AV = 2048, 4096 (RL = 10k) l –1 –0.2 1 % Gain Nonlinearity AV = 1 l 3 15 ppm 6915fb 3 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagrams Timing Diagram Operation Typical Application Package Description Revision History Typical Application Related Parts
elecTrical characTerisTics The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS V+ = 3V, V– = 0V, VREF = 200mV
Gain Error (Note 2) AV = 1 (RL =10k) l –0.075 0 0.075 % Gain Error (Note 2) AV = 2 to 32 (RL = 10k) l –0.5 0 0.5 % Gain Error (Note 2) AV = 64 to 1024 (RL = 10k) l –0.6 –0.1 0.6 % Gain Error (Note 2) AV = 2048, 4096 (RL = 10k) l –1 –0.2 1.0 % Gain Nonlinearity AV = 1 l 3 15 ppm VOS Input Offset Voltage (Note 3) VCM = 200mV –3 ±10 µV Average Input Offset Drift (Note 3) TA = –40°C to 85°C l ±50 nV/°C TA = 85°C to 125°C l ±100 nV/°C IB Average Input Bias Current (Note 4) VCM = 1.2V l 5 10 nA IOS Average Input Offset Current (Note 4) VCM = 1.2V l 1.5 3 nA en Input Noise Voltage DC to 10Hz 2.5 µVP-P
V+ = 3V, V– = 0V, VREF = 200mV
CMRR Common Mode Rejection Ratio AV = 1024, VCM = 0V to 3V, LTC6915C l 100 119 dB AV = 1024, VCM = 0.1V to 2.9V, LTC6915I l 100 119 dB AV = 1024, VCM = 0V to 3V, LTC6915I l 95 119 dB AV = 1024, VCM = 0.1V to 2.9V, LTC6915H l 100 dB AV = 1024, VCM = 0V to 2.97V, LTC6915H l 85 dB PSRR Power Supply Rejection Ratio (Note 5) VS = 2.7V to 6V l 110 116 dB Output Voltage Swing High (Referenced to V–) Sourcing 200µA l 2.95 2.98 V Sourcing 2mA l 2.75 2.87 V Output Voltage Swing Low (Referenced to V–) Sinking 200µA l 18 50 mV Sinking 2mA l 130 300 mV Supply Current, Parallel Mode No Load at OUT, VCM = 200mV l 0.88 1.3 mA Supply Current, Serial Mode (Note 6) No Load at OUT, Capacitive Load at l 1.1 1.65 mA DOUT (CL) = 15pF, Continuous CLK Frequency = 4MHz, CS = LOW, Gain Control Code = 0001 Supply Current Shutdown VSHDN = 2.7V (Hardware Shutdown) l 1 4 µA VSHDN = 1V, Gain Control Code = 0000 l 125 180 µA (Software Shutdown) SHDN Input High l 2.7 V SHDN Input Low l 1 V SHDN and HOLD_THRU Input Current (Note 2) l 5 µA Internal Op Amp Gain Bandwidth 200 kHz Slew Rate 0.2 V/µs Internal Sampling Frequency 3 kHz
V+ = 5V, V– = 0V, VREF = 200mV
Gain Error (Note 2) AV = 1 (RL = 10k) l –0.075 0 0.075 % Gain Error (Note 2) AV = 2 to 32 (RL= 10k) l –0.5 0 0.5 % Gain Error (Note 2) AV = 64 to 1024 (RL = 10k) l –0.6 –0.1 0.6 % Gain Error (Note 2) AV = 2048, 4096 (RL = 10k) l –1 –0.2 1 % Gain Nonlinearity AV = 1 l 3 15 ppm 6915fb 3 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagrams Timing Diagram Operation Typical Application Package Description Revision History Typical Application Related Parts