Datasheet LTC1250 (Analog Devices) - 3
| Manufacturer | Analog Devices |
| Description | Very Low Noise Zero-Drift Bridge Amplifier |
| Pages / Page | 12 / 3 — ELECTRICAL CHARACTERISTICS The. denotes the specifications which apply … |
| File Format / Size | PDF / 184 Kb |
| Document Language | English |
ELECTRICAL CHARACTERISTICS The. denotes the specifications which apply over the full operating. temperature range, VIN =
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LTC1250
ELECTRICAL CHARACTERISTICS The
●
denotes the specifications which apply over the full operating temperature range, VIN =
±
5V, otherwise specifications are at TA LTC1250M LTC1250C SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
fS Internal Sampling Frequency TA = 25°C 4.75 4.75 kHz VOS Input Offset Voltage TA = 25°C (Note 2) ±2 ±5 ±2 ±5 µV ∆VOS Average Input Offset Drift (Note 2) ● ±0.01 ±0.05 ±0.01 ±0.05 µV/°C en Input Noise Voltage (Note 3) TA = 25°C, 0.1Hz to 10Hz 1.0 1.0 µVP-P TA = 25°C, 0.1Hz to 1Hz 0.3 0.3 µVP-P IB Input Bias Current TA = 25°C (Note 4) ±20 ±100 ±20 ±100 pA IOS Input Offset Current TA = 25°C (Note 4) ±40 ±200 ±40 ±200 pA Maximum Output Voltage Swing RL = 1k 4.0 4.3 4.0 4.3 V RL = 100k 4.95 4.95 V IS Supply Current TA = 25°C 1.8 2.5 1.8 2.5 mA fS Sampling Frequency TA = 25°C 3 3 kHz
Note 1:
Absolute Maximum Ratings are those values beyond which the life filter at 0.1Hz. The LTC1250 is sample tested for noise; for 100% tested of a device may be impaired. parts contact LTC Marketing Dept.
Note 2:
These parameters are guaranteed by design. Thermocouple effects
Note 4:
At T ≤ 0°C these parameters are guaranteed by design and not preclude measurement of these voltage levels during automated testing. tested.
Note 3:
0.1Hz to 10Hz noise is specified DC coupled in a 10s window; 0.1Hz to 1Hz noise is specified in a 100s window with an RC high-pass
W U TYPICAL PERFOR A CE CH C ARA TERISTICS Sampling Frequency vs Supply Input Noise vs Supply Voltage Supply Current vs Supply Voltage Voltage
1.6 4.0 6 T T T A = 25°C A = 25°C A = 25°C 1.4 3.5 1.2 3.0 5 ) P-PV 1.0 2.5 µ 0.8 0.1Hz TO 10Hz 2.0 4 0.6 1.5 INPUT NOISE ( SUPPLY CURRENT (mA) 0.4 1.0 3 SAMPLING FREQUENCY (kHz) 0.1Hz TO 1Hz 0.2 0.5 0 0 2 4 6 8 10 12 14 16 4 6 8 10 12 14 16 4 6 8 10 12 14 16 TOTAL SUPPLY VOLTAGE, V+ TO V– (V) TOTAL SUPPLY VOLTAGE, V+ TO V– (V) TOTAL SUPPLY VOLTAGE, V+ TO V– (V) 1250 G03 1250 G01 1250 G02 1250fb 3
ELECTRICAL CHARACTERISTICS The
●
denotes the specifications which apply over the full operating temperature range, VIN =
±
5V, otherwise specifications are at TA LTC1250M LTC1250C SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
fS Internal Sampling Frequency TA = 25°C 4.75 4.75 kHz VOS Input Offset Voltage TA = 25°C (Note 2) ±2 ±5 ±2 ±5 µV ∆VOS Average Input Offset Drift (Note 2) ● ±0.01 ±0.05 ±0.01 ±0.05 µV/°C en Input Noise Voltage (Note 3) TA = 25°C, 0.1Hz to 10Hz 1.0 1.0 µVP-P TA = 25°C, 0.1Hz to 1Hz 0.3 0.3 µVP-P IB Input Bias Current TA = 25°C (Note 4) ±20 ±100 ±20 ±100 pA IOS Input Offset Current TA = 25°C (Note 4) ±40 ±200 ±40 ±200 pA Maximum Output Voltage Swing RL = 1k 4.0 4.3 4.0 4.3 V RL = 100k 4.95 4.95 V IS Supply Current TA = 25°C 1.8 2.5 1.8 2.5 mA fS Sampling Frequency TA = 25°C 3 3 kHz
Note 1:
Absolute Maximum Ratings are those values beyond which the life filter at 0.1Hz. The LTC1250 is sample tested for noise; for 100% tested of a device may be impaired. parts contact LTC Marketing Dept.
Note 2:
These parameters are guaranteed by design. Thermocouple effects
Note 4:
At T ≤ 0°C these parameters are guaranteed by design and not preclude measurement of these voltage levels during automated testing. tested.
Note 3:
0.1Hz to 10Hz noise is specified DC coupled in a 10s window; 0.1Hz to 1Hz noise is specified in a 100s window with an RC high-pass
W U TYPICAL PERFOR A CE CH C ARA TERISTICS Sampling Frequency vs Supply Input Noise vs Supply Voltage Supply Current vs Supply Voltage Voltage
1.6 4.0 6 T T T A = 25°C A = 25°C A = 25°C 1.4 3.5 1.2 3.0 5 ) P-PV 1.0 2.5 µ 0.8 0.1Hz TO 10Hz 2.0 4 0.6 1.5 INPUT NOISE ( SUPPLY CURRENT (mA) 0.4 1.0 3 SAMPLING FREQUENCY (kHz) 0.1Hz TO 1Hz 0.2 0.5 0 0 2 4 6 8 10 12 14 16 4 6 8 10 12 14 16 4 6 8 10 12 14 16 TOTAL SUPPLY VOLTAGE, V+ TO V– (V) TOTAL SUPPLY VOLTAGE, V+ TO V– (V) TOTAL SUPPLY VOLTAGE, V+ TO V– (V) 1250 G03 1250 G01 1250 G02 1250fb 3
