LTC2050 LINER | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 4

Technical content

n High Resolution Data Acquisition n DC Accurate RC Active Filters USA OPPLICATI n SOT-23 Package n Maximum Offset Voltage of 3mV n Maximum Offset Voltage Drift of 30nV/°C n Noise: 1.5mVP-P (0.1Hz to 10Hz Typ) n Voltage Gain: 140dB (Typ) n PSRR: 130dB (Typ) n CMRR: 130dB (Typ) n Supply Current: 0.8mA (Typ) n Single Supply Operation: 2.7V to 6V n Extended Common Mode Input Range n Output Swings Rail-to-Rail n Overload Recovery Time: 2ms (Typ) SFEATURE D UESCRIPTIO The LTC 2050 is a low drift operational amplifier available in the 5- or 6-lead SOT-23 and SO-8 packages. It operates from a single 2.7V supply while still supporting 5V appli- cations. The power consumption is 800 mA and the ver- sions in the 6-lead SOT-23 and SO-8 packages offer power shutdown (active low). The LTC2050, despite its miniature size, features uncom- promising DC performance. The typical input offset volt- age and offset drift are 0.5 mV and 10nV/ °C. The almost zero DC offset and drift are supported with a power supply rejection ratio (PSRR) and common mode rejection ratio (CMRR) of more than 130dB. The input common mode voltage ranges from the negative supply up to 1V from the positive supply. The LTC2050 also has an enhanced output stage capable of driving loads as low as 1kW to both supply rails. The open-loop gain, loaded with 1kW , is in excess of 140dB. The LTC2050 also features a 1.5mV P-P DC to 10Hz noise and a 3MHz gain bandwidth product. Input Referred Noise 0.1Hz to 10HzDifferential Bridge Amplifier UA OPPLICATITYPICAL , LTC and LT are registered trademarks of Linear Technology Corporation. 1000pF 18.2k 1000pF 18.2k 0.1mF AV = 100

2050 TA01

TIME (s) mV LT2050 TA02 2 4 6 10 VS = 5V Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. Final Electrical Specifications

The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VS = 3V unless otherwise noted. (Note 3) WU UPACKAGE/ORDER I FOR ATIO A UGWA WU WARBSOLUTEX I T I S ORDER PART NUMBER LTC2050CS5 TJMAX = 125°C, qJA = 190°CW S5 PART MARKING LTIN Specified Temperature Range (Note 3) .. – 40°C to 85°C TOP VIEW NC OUT NC SHDN –IN +IN V S8 PACKAGE 8-LEAD PLASTIC SO ORDER PART NUMBER LTC2050CS6 S6 PART MARKING LTIP ORDER PART NUMBER LTC2050CS8 LTC2050IS8 S8 PART MARKING 2050 2050I OUT 1 V– 2 TOP VIEW S5 PACKAGE 5-LEAD PLASTIC SOT-23 +IN 3 5 V+ 4 –IN TJMAX = 125°C, qJA = 230°CWTJMAX = 125°C, qJA = 250°CW OUT 1 V– 2 +IN 3 6 V+

5 SHDN

4 –IN TOP VIEW S6 PACKAGE 6-LEAD PLASTIC SOT-23 ELECTRICAL C CHARA TERISTICS PARAMETER CONDITIONS MIN TYP MAX UNITS Input Offset Voltage (Note 2) –0.5 –3 mV Average Input Offset Drift (Note 2) l –0.03 mV/°C Long-Term Offset Drift 50 nV/ Ömo Input Bias Current –20 –75 pA l –300 pA Input Offset Current –150 pA l –200 pA Input Noise Voltage R S = 100W , DC to 10Hz 1.5 mVP-P Common Mode Rejection Ratio V CM = V– to V+ – 1.3 115 130 dB l 110 130 dB Power Supply Rejection Ratio 120 130 dB l 115 130 dB Large-Signal Voltage Gain R L = 10k 120 140 dB l 115 140 dB Maximum Output Voltage Swing R L = 2k l 2.85 2.94 V RL = 10k l 2.95 2.98 V Slew Rate 2V / ms Gain Bandwidth Product 3 MHz Supply Current V SHDN = V+, No Load l 0.75 1.1 mA VSHDN = V– l 10 mA Consult factory for Military grade parts. (Note 1)

Note 1: Absolute Maximum Ratings are those values beyond which the life of the device may be impaired. Note 2: These parameters are guaranteed by design. Thermocouple effects preclude measurements of these voltage levels during automated testing. The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VS = 5V unless otherwise noted. (Note 3) PARAMETER CONDITIONS MIN TYP MAX UNITS Input Offset Voltage (Note 2) –0.5 –3 mV Average Input Offset Drift (Note 2) l –0.03 mV/°C Long-Term Offset Drift 50 nV/ Ömo Input Bias Current –150 pA l –300 pA Input Offset Current –300 pA l –400 pA Input Noise Voltage R S = 100W , DC to 10Hz 1.5 mVP-P Common Mode Rejection Ratio V CM = V– to V+ – 1.3 120 130 dB l 115 130 dB Power Supply Rejection Ratio 120 130 dB l 115 130 dB Large-Signal Voltage Gain R L = 10k 125 140 dB l 120 140 dB Maximum Output Voltage Swing R L = 2k l 4.85 4.94 V RL = 10k l 4.95 4.98 V Slew Rate 2V / ms Gain Bandwidth Product 3 MHz Supply Current V SHDN = V+, No Load l 0.8 1.2 mA VSHDN = V– l 10 mA Shutdown Pin Input Low Voltage l V– + 0.5 V Shutdown Pin Input High Voltage l V+ – 0.5 V Shutdown Pin Input Current V SHDN = V– l –0.5 –5 mA Internal Sampling Frequency 7.5 kHz The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VS = 3V unless otherwise noted. (Note 3) ELECTRICAL C CHARA TERISTICS PARAMETER CONDITIONS MIN TYP MAX UNITS Shutdown Pin Input Low Voltage l V– + 0.5 V Shutdown Pin Input High Voltage l V+ – 0.5 V Shutdown Pin Input Current V SHDN = V– l –0.5 –3 mA Internal Sampling Frequency 7.5 kHz Note 3: The LTC2050C is guaranteed to meet specified performance from 0°C to 70°C and is designed, characterized and expected to meet these extended temperature limits, but is not tested at –40 °C and 85°C. The LTC2050I is guaranteed to meet the extended temperature limits.

ª LINEAR TECHNOLOGY CORPORATION 1 999 2050i LT/TP 1199 4K • PRINTED IN USA Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 l FAX: (408) 434-0507 l www.linear-tech.com PACKAGE DESCRIPTIONU Dimensions in inches (millimeters) unless otherwise noted. 6-Lead Plastic SOT-23 (LTC DWG # 05-08-1634) 8-Lead Plastic Small Outline (Narrow 0.150) (LTC DWG # 05-08-1610) 1.50 – 1.75 (0.059 – 0.069) 0.35 – 0.55 (0.014 – 0.020) SIX PLACES (NOTE 2) S6 SOT-23 0898 0.90 – 1.45 (0.035 – 0.057) 0.90 – 1.30 (0.035 – 0.051) 0.00 – 0.15 (0.00 – 0.006) 0.09 – 0.20 (0.004 – 0.008) (NOTE 2) 2.6 – 3.0 (0.110 – 0.118) NOTE: 1. DIMENSIONS ARE IN MILLIMETERS 2. DIMENSIONS ARE INCLUSIVE OF PLATING 3. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR 4. MOLD FLASH SHALL NOT EXCEED 0.254mm 5. PACKAGE EIAJ REFERENCE IS SC-74A (EIAJ) 0.95 (0.037) REF 2.80 – 3.00 (0.110 – 0.118) (NOTE 3) 1.90 (0.074) REF 0.016 – 0.050 (0.406 – 1.270) 0.010 – 0.020 0°– 8° TYP 0.008 – 0.010 (0.203 – 0.254) SO8 1298 0.053 – 0.069 (1.346 – 1.752) 0.014 – 0.019 (0.355 – 0.483) TYP 0.004 – 0.010 (0.101 – 0.254) 0.050 (1.270) BSC 1 2 3 4 0.150 – 0.157** (3.810 – 3.988) 8 7 6 5 0.189 – 0.197* (4.801 – 5.004) 0.228 – 0.244 (5.791 – 6.197) DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE 5-Lead Plastic SOT-23 (LTC DWG # 05-08-1633) 1.50 – 1.75 (0.059 – 0.069) 0.35 – 0.55 (0.014 – 0.020) FIVE PLACES (NOTE 2) S5 SOT-23 0599 0.90 – 1.45 (0.035 – 0.057) 0.90 – 1.30 (0.035 – 0.051) 0.00 – 0.15 (0.00 – 0.006) 0.09 – 0.20 (0.004 – 0.008) (NOTE 2) 2.60 – 3.00 (0.102 – 0.118) NOTE: 1. DIMENSIONS ARE IN MILLIMETERS 2. DIMENSIONS ARE INCLUSIVE OF PLATING 3. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR 4. MOLD FLASH SHALL NOT EXCEED 0.254mm 5. PACKAGE EIAJ REFERENCE IS SC-74A (EIAJ) 0.95 (0.037) REF 2.80 – 3.00 (0.110 – 0.118) (NOTE 3) 1.90 (0.074) REF RELATED PARTS PART NUMBER DESCRIPTION COMMENTS LTC1049 Low Power Zero-Drift Op Amp Low Supply Current 200 mA LTC1050 Precision Zero-Drift Op Amp Single Supply Operation 4.75V to 16V, Noise Tested and Guaranteed LTC1051/LTC1053 Precision Zero-Drift Op Amp Dual/Quad LTC1150 –15V Zero-Drift Op Amp High Voltage Operation –18V LTC1152 Rail-to-Rail Input and Output Zero-Drift Op Amp Single Zero-Drift Op Amp with Rail-to-Rail Input and Output and Shutdown