Datasheet LT6657 (Analog Devices) - 7
| Manufacturer | Analog Devices |
| Description | 1.5ppm/°C Drift, Low Noise, Buffered Reference |
| Pages / Page | 24 / 7 — Typical perForMance characTerisTics The test conditions are TA = … |
| File Format / Size | PDF / 1.2 Mb |
| Document Language | English |
Typical perForMance characTerisTics The test conditions are TA = 25°C,VIN = VOUT + 0.5V,
Model Line for this Datasheet
- LT6657AHMS8-1.25#PBF LT6657AHMS8-1.25#TRPBF LT6657AHMS8-2.5#PBF LT6657AHMS8-2.5#TRPBF LT6657AHMS8-3#PBF LT6657AHMS8-3#TRPBF LT6657AHMS8-4.096#PBF LT6657AHMS8-4.096#TRPBF LT6657AHMS8-5#PBF LT6657AHMS8-5#TRPBF LT6657BHMS8-1.25#PBF LT6657BHMS8-1.25#TRPBF LT6657BHMS8-2.5#PBF LT6657BHMS8-2.5#TRPBF LT6657BHMS8-3#PBF LT6657BHMS8-3#TRPBF LT6657BHMS8-4.096#PBF LT6657BHMS8-4.096#TRPBF LT6657BHMS8-5#PBF LT6657BHMS8-5#TRPBF
Text Version of Document
LT6657
Typical perForMance characTerisTics The test conditions are TA = 25°C,VIN = VOUT + 0.5V, VSHDN = 1.6V, IOUT = 0, CIN = 0.1µF, COUT = 1µF. For LT6657-1.25 VSHDN = 1.45V, CIN = 1µF, COUT = 2.7µF, unless otherwise noted. 2.5V Line Regulation 2.5V Load Regulation (Sourcing) 2.5V Load Regulation (Sinking)
2.5010 40 40 PART SELF HEATING 125°C MS8 PACKAGE PART SELF MS8 PACKAGE PART SELF IS INCLUDED 25°C 30 HEATING IS INCLUDED 30 HEATING IS INCLUDED –40°C V) V) 2.5005 20 20 10 10 TAGE (V) 2.5000 0 0 TAGE CHANGE (µ TAGE CHANGE (µ –10 –10 OUTPUT VOL 2.4995 –20 125°C –20 125°C OUTPUT VOL 25°C OUTPUT VOL 25°C –30 –40°C –30 –40°C –55°C –55°C 2.4990 –40 –40 0 10 20 30 40 0.1 1 10 0.1 1 10 INPUT VOLTAGE (V) OUTPUT CURRENT (mA) OUTPUT CURRENT (mA) 6657 G19 6657 G20 6657 G21
2.5V Minimum VIN to VOUT 2.5V Minimum VIN to VOUT 2.5V Power Supply Rejection Differential (Sourcing) Differential (Sinking) Ratio vs Frequency
10 10 120 125°C COUT = 1µF 25°C COUT = 10µF –40°C 100 –55°C TIO (dB) 80 1 1 60 Y REJECTION RA 40 OUTPUT CURRENT (mA) 125°C OUTPUT CURRENT (mA) 25°C 20 –40°C POWER SUPPL –55°C VIN < VOUT 0.1 0.1 0 0 100 200 300 400 500 –300 –250 –200 –150 –100 –50 0 50 0.1 1 10 100 1000 INPUT-OUTPUT VOLTAGE (mV) INPUT-OUTPUT VOLTAGE (mV) FREQUENCY (kHz) 6657 G22 6657 G23 6657 G11
2.5V Output Impedance Supply and Ground Currents Shutdown Voltage Thresholds vs Frequency vs Load Current vs Temperature
10 12 1.40 C 125°C V OUT = 1µF TH(RISING) C V OUT = 10µF 25°C 1.35 TH(FALLING) C 8 OUT = 100µF –40°C –55°C 1.30 4 SUPPLY PIN CURRENT 1.25 1 0 TAGE THRESHOLDS (V) 1.15 GROUND PIN CURRENT –4 1.10 OUTPUT IMPEDANCE (Ω) Y AND GROUND CURRENTS (mA) –8 1.05 SUPPL CURRENTS GOING INTO SHUTDOWN VOL THE PART ARE POSITIVE 0.1 –12 1.00 1 10 100 1k –10 –5 0 5 10 –50 0 50 100 150 FREQUENCY (kHz) LOAD CURRENT (mA) TEMPERATURE (°C) 6657 G25 6657 G26 6657 G27 6657fd For more information www.linear.com/LT6657 7
Typical perForMance characTerisTics The test conditions are TA = 25°C,VIN = VOUT + 0.5V, VSHDN = 1.6V, IOUT = 0, CIN = 0.1µF, COUT = 1µF. For LT6657-1.25 VSHDN = 1.45V, CIN = 1µF, COUT = 2.7µF, unless otherwise noted. 2.5V Line Regulation 2.5V Load Regulation (Sourcing) 2.5V Load Regulation (Sinking)
2.5010 40 40 PART SELF HEATING 125°C MS8 PACKAGE PART SELF MS8 PACKAGE PART SELF IS INCLUDED 25°C 30 HEATING IS INCLUDED 30 HEATING IS INCLUDED –40°C V) V) 2.5005 20 20 10 10 TAGE (V) 2.5000 0 0 TAGE CHANGE (µ TAGE CHANGE (µ –10 –10 OUTPUT VOL 2.4995 –20 125°C –20 125°C OUTPUT VOL 25°C OUTPUT VOL 25°C –30 –40°C –30 –40°C –55°C –55°C 2.4990 –40 –40 0 10 20 30 40 0.1 1 10 0.1 1 10 INPUT VOLTAGE (V) OUTPUT CURRENT (mA) OUTPUT CURRENT (mA) 6657 G19 6657 G20 6657 G21
2.5V Minimum VIN to VOUT 2.5V Minimum VIN to VOUT 2.5V Power Supply Rejection Differential (Sourcing) Differential (Sinking) Ratio vs Frequency
10 10 120 125°C COUT = 1µF 25°C COUT = 10µF –40°C 100 –55°C TIO (dB) 80 1 1 60 Y REJECTION RA 40 OUTPUT CURRENT (mA) 125°C OUTPUT CURRENT (mA) 25°C 20 –40°C POWER SUPPL –55°C VIN < VOUT 0.1 0.1 0 0 100 200 300 400 500 –300 –250 –200 –150 –100 –50 0 50 0.1 1 10 100 1000 INPUT-OUTPUT VOLTAGE (mV) INPUT-OUTPUT VOLTAGE (mV) FREQUENCY (kHz) 6657 G22 6657 G23 6657 G11
2.5V Output Impedance Supply and Ground Currents Shutdown Voltage Thresholds vs Frequency vs Load Current vs Temperature
10 12 1.40 C 125°C V OUT = 1µF TH(RISING) C V OUT = 10µF 25°C 1.35 TH(FALLING) C 8 OUT = 100µF –40°C –55°C 1.30 4 SUPPLY PIN CURRENT 1.25 1 0 TAGE THRESHOLDS (V) 1.15 GROUND PIN CURRENT –4 1.10 OUTPUT IMPEDANCE (Ω) Y AND GROUND CURRENTS (mA) –8 1.05 SUPPL CURRENTS GOING INTO SHUTDOWN VOL THE PART ARE POSITIVE 0.1 –12 1.00 1 10 100 1k –10 –5 0 5 10 –50 0 50 100 150 FREQUENCY (kHz) LOAD CURRENT (mA) TEMPERATURE (°C) 6657 G25 6657 G26 6657 G27 6657fd For more information www.linear.com/LT6657 7
