Datasheet LTC1292, LTC1297 (Analog Devices) - 5

LTC1292/LTC1297
W U TYPICAL PERFOR A CE CH C ARA TERISTICS LTC1297 Supply Current (Power Unadjusted Offset Voltage vs Change in Linearity vs Shutdown) vs CLK Frequency Reference Voltage Reference Voltage
25 0.9 1.25 VCC = 5V VCC = 5V VCC = 5V VREF = 5V 0.8 ) 20 CS HIGH REF 1.00 CMOS LOGIC LEVELS REF 0.7 × V µA) × V 0.6 0.75 15 0.5 10 0.50 0.4 VOS = 0.250mV SUPPLY CURRENT ( 0.3 5 OFFSET (LSB = 1/4096 0.25 LINEARITY (LSB = 1/4096 0.2 VOS = 0.125mV 0 0.1 0 0 200 400 600 800 1000 1 2 3 4 5 0 1 2 3 4 5 CLK FREQUENCY (kHz) REFERENCE VOLTAGE (V) REFERENCE VOLTAGE (V) LTC1292/7 G04 LTC1292/7 G05 LTC1292/7 G06
Change in Gain vs Change in Linearity vs Reference Voltage Change in Offset vs Temperature Temperature
0 0.5 0.5 VCC = 5V V ) CC = 5V VCC = 5V VREF = 5V VREF = 5V REF –0.2 0.4 CLK = 1MHz 0.4 CLK = 1MHz × V –0.4 0.3 0.3 –0.6 0.2 0.2 –0.8 0.1 0.1 –1.0 MAGNITUDE OF OFFSET CHANGE (LSB) CHANGE IN GAIN (LSB = 1/4096 MAGNITUDE OF LINEARITY CHANGE (LSB) –1.2 0 0 0 1 2 3 4 5 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 REFERENCE VOLTAGE (V) AMBIENT TEMPERATURE (°C) AMBIENT TEMPERATURE (°C) LTC1292/7 G07 LTC1292/7 G08 LTC1292/7 G09
Minimum Clock Rate for Change in Gain vs Temperature 0.1 LSB Error* DOUT Delay Time vs Temperature
0.5 250 VCC = 5V VCC = 5V VCC = 5V VREF = 5V 0.25 0.4 CLK = 1MHz ↓ (ns) 200 0.20 0.3 150 MSB FIRST DATA 0.15 0.2 100 LSB FIRST DATA 0.10 DELAY TIME FROM CLK 0.1 50 0.05 OUT MAGNITUDE OF GAIN CHANGE (LSB) MINIMUM CLK FREQUENCY (MHz) D 0 0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 AMBIENT TEMPERATURE (°C) AMBIENT TEMPERATURE (°C) AMBIENT TEMPERATURE (°C) LTC1292/7 G10 LTC1292/7 G11 LTC1292/7 G12 * AS THE CLK FREQUENCY IS DECREASED FROM 1MHz, MINIMUM CLK FREQUENCY (∆ERROR ≤ 0.1LSB) REPRESENTS THE FREQUENCY AT WHICH A 0.1LSB SHIFT IN ANY CODE TRANSITION FROM ITS 1MHz VALUE IS FIRST DETECTED (NOTE 9). 12927fb 5