Datasheet LTC2058 (Analog Devices)
| 制造商 | Analog Devices |
| 描述 | 36V, Low Noise Zero-Drift Operational Amplifier |
| 页数 / 页 | 28 / 1 — FEATURES. DESCRIPTION. Supply Voltage Range: 4.75V to 36V. Offset … |
| 文件格式/大小 | PDF / 2.0 Mb |
| 文件语言 | 英语 |
FEATURES. DESCRIPTION. Supply Voltage Range: 4.75V to 36V. Offset Voltage: 5μV (Maximum). Offset Voltage Drift: 0.025μV/°C
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LTC2058 36V, Low Noise Zero-Drift Operational Amplifier
FEATURES DESCRIPTION
n
Supply Voltage Range: 4.75V to 36V
The LTC®2058 is a dual, low noise, zero-drift operational n
Offset Voltage: 5μV (Maximum)
amplifier that offers precision DC performance over a n
Offset Voltage Drift: 0.025μV/°C
(
Maximum, –40°C
wide supply range of 4.75V to 36V. Offset voltage and 1/f
to 125°C)
noise are suppressed, allowing this amplifier to achieve n
Input Noise Voltage
a maximum offset voltage of 5μV and a DC to 10Hz input n
200nVP-P, DC to 10Hz (Typ)
noise voltage of 200nVP-P (Typ). The LTC2058’s self- n
9nV/√Hz, 1kHz (Typ)
calibrating circuitry results in low offset voltage drift with n Input Common Mode Range: V– – 0.1V to V+ – 1.5V temperature, 0.025μV/°C (Max), and practically zero drift n Rail-to-Rail Output over time. The amplifier also features an excellent power n Unity Gain Stable supply rejection ratio (PSRR) of 150dB and a common n Gain Bandwidth Product: 2.5MHz (Typ) mode rejection ratio (CMRR) of 150dB (Typ). n Slew Rate: 1.6V/μs (Typ) The LTC2058 provides rail-to-rail output swing and an n AVOL: 150dB (Typ) input common mode range that includes the V– rail. In n PSRR: 150dB (Typ) addition to low offset and noise, this amplifier features n CMRR: 150dB (Typ) a 2.5MHz (Typ) gain-bandwidth product and a 1.6V/μs n Shutdown Mode (Typ) slew rate.
APPLICATIONS
Wide supply range, combined with low noise, low offset, n High Resolution Data Acquisition and excellent PSRR and CMRR make the LTC2058 well n Reference Buffering suited for high dynamic-range test, measurement, and n Test and Measurement instrumentation systems. n Electronic Scales All registered trademarks and trademarks are the property of their respective owners. n Thermocouple Amplifiers n Strain Gauges n Low Side Current Sense n Automotive Monitors and Control
TYPICAL APPLICATION 18-Bit Voltage Output DAC with Software-Selectable Ranges 20V Step Response of DAC I to V Output Voltage Noise, ±10V Span, VOUT = 0V
V REF S = ±15V 5V DAC SPAN = ±10V
MEASUREMENT BANDWIDTH V
+
OUT NOISE
10kHz 12μV ½ LTC2058 RMS – /DIV) 100kHz 80μV 150pF RMS (5V V OUT RIN RCOM REF ROFS RFB 20pF 4 SPI WITH READBACK IOUT1 – LTC2756 5V 18-BIT DAC WITH SPAN SELECT ½ LTC2058 V 2058 TA01b + OUT I 15µs/DIV OUT2 VDD 0.1µF GND GND GE V ADJ OSADJ GAIN 2058 TA01a OFFSET ADJUST ADJUST Rev 0 Document Feedback For more information www.analog.com 1 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagrams Applications Information Typical Applications Package Description Typical Application Related Parts
FEATURES DESCRIPTION
n
Supply Voltage Range: 4.75V to 36V
The LTC®2058 is a dual, low noise, zero-drift operational n
Offset Voltage: 5μV (Maximum)
amplifier that offers precision DC performance over a n
Offset Voltage Drift: 0.025μV/°C
(
Maximum, –40°C
wide supply range of 4.75V to 36V. Offset voltage and 1/f
to 125°C)
noise are suppressed, allowing this amplifier to achieve n
Input Noise Voltage
a maximum offset voltage of 5μV and a DC to 10Hz input n
200nVP-P, DC to 10Hz (Typ)
noise voltage of 200nVP-P (Typ). The LTC2058’s self- n
9nV/√Hz, 1kHz (Typ)
calibrating circuitry results in low offset voltage drift with n Input Common Mode Range: V– – 0.1V to V+ – 1.5V temperature, 0.025μV/°C (Max), and practically zero drift n Rail-to-Rail Output over time. The amplifier also features an excellent power n Unity Gain Stable supply rejection ratio (PSRR) of 150dB and a common n Gain Bandwidth Product: 2.5MHz (Typ) mode rejection ratio (CMRR) of 150dB (Typ). n Slew Rate: 1.6V/μs (Typ) The LTC2058 provides rail-to-rail output swing and an n AVOL: 150dB (Typ) input common mode range that includes the V– rail. In n PSRR: 150dB (Typ) addition to low offset and noise, this amplifier features n CMRR: 150dB (Typ) a 2.5MHz (Typ) gain-bandwidth product and a 1.6V/μs n Shutdown Mode (Typ) slew rate.
APPLICATIONS
Wide supply range, combined with low noise, low offset, n High Resolution Data Acquisition and excellent PSRR and CMRR make the LTC2058 well n Reference Buffering suited for high dynamic-range test, measurement, and n Test and Measurement instrumentation systems. n Electronic Scales All registered trademarks and trademarks are the property of their respective owners. n Thermocouple Amplifiers n Strain Gauges n Low Side Current Sense n Automotive Monitors and Control
TYPICAL APPLICATION 18-Bit Voltage Output DAC with Software-Selectable Ranges 20V Step Response of DAC I to V Output Voltage Noise, ±10V Span, VOUT = 0V
V REF S = ±15V 5V DAC SPAN = ±10V
MEASUREMENT BANDWIDTH V
+
OUT NOISE
10kHz 12μV ½ LTC2058 RMS – /DIV) 100kHz 80μV 150pF RMS (5V V OUT RIN RCOM REF ROFS RFB 20pF 4 SPI WITH READBACK IOUT1 – LTC2756 5V 18-BIT DAC WITH SPAN SELECT ½ LTC2058 V 2058 TA01b + OUT I 15µs/DIV OUT2 VDD 0.1µF GND GND GE V ADJ OSADJ GAIN 2058 TA01a OFFSET ADJUST ADJUST Rev 0 Document Feedback For more information www.analog.com 1 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagrams Applications Information Typical Applications Package Description Typical Application Related Parts