Datasheet LTC2293, LTC2292, LTC2291 (Analog Devices) - 2

LTC2293/LTC2292/LTC2291
W W W U ABSOLUTE AXI U RATI GS OVDD = VDD (Notes 1, 2)
Supply Voltage (VDD) ... 4V Power Dissipation .. 1500mW Digital Output Ground Voltage (OGND) ... –0.3V to 1V Operating Temperature Range Analog Input Voltage (Note 3) ... –0.3V to (VDD + 0.3V) LTC2293C, LTC2292C, LTC2291C ... 0°C to 70°C Digital Input Voltage .. –0.3V to (VDD + 0.3V) LTC2293I, LTC2292I, LTC2291I ..–40°C to 85°C Digital Output Voltage .. –0.3V to (OVDD + 0.3V) Storage Temperature Range ..–65°C to 125°C
U W U PACKAGE/ORDER I FOR ATIO
TOP VIEW DD ORDER PART QFN PART* DD 64 GND 63 V 62 SENSEA 61 VCMA 60 MODE 59 SHDNA 58 OEA 57 OFA 56 DA11 55 DA10 54 DA9 53 DA8 52 DA7 51 DA6 50 OGND 49 OV NUMBER MARKING A + INA 1 48 DA5 A – INA 2 47 DA4 REFHA 3 46 DA3 REFHA 4 45 DA2 REFLA 5 44 DA1 LTC2293CUP LTC2293UP REFLA 6 43 DA0 VDD 7 42 NC LTC2293IUP LTC2293UP CLKA 8 41 NC 65 CLKB 9 40 OFB LTC2292CUP LTC2292UP VDD 10 39 DB11 REFLB 11 38 DB10 LTC2292IUP LTC2292UP REFLB 12 37 DB9 REFHB 13 36 DB8 LTC2291CUP LTC2291UP REFHB 14 35 DB7 A – LTC2291IUP LTC2291UP INB 15 34 DB6 A + INB 16 33 DB5 17 18 19 20 32 DD NC 24 NC 25 DD GND V OEB 23 DB0 26 DB1 27 DB2 28 DB3 29 DB4 30 VCMB MUX 21 OGND 31 OV
Order Options
Tape and Reel: Add #TR SENSEB SHDNB 22 UP PACKAGE Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF 64-LEAD (9mm × 9mm) PLASTIC QFN Lead Free Part Marking: http://www.linear.com/leadfree/ TJMAX = 125°C, θJA = 20°C/W EXPOSED PAD (PIN 65) IS GND AND MUST BE SOLDERED TO PCB Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
U CO VERTER CHARACTERISTICS The
●
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. (Note 4) LTC2293 LTC2292 LTC2291 PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
Resolution ● 12 12 12 Bits (No Missing Codes) Integral Linearity Error Differential Analog Input (Note 5) ● –1.4 ±0.3 1.4 –1.4 ±0.3 1.4 –1.3 ±0.3 1.3 LSB Differential Differential Analog Input ● –0.8 ±0.15 0.8 –0.7 ±0.15 0.7 –0.7 ±0.15 0.7 LSB Linearity Error Offset Error (Note 6) ● –12 ±2 12 –12 ±2 12 –12 ±2 12 mV Gain Error External Reference ● –2.5 ±0.5 2.5 –2.5 ±0.5 2.5 –2.5 ±0.5 2.5 %FS Offset Drift ±10 ±10 ±10 µV/°C Full-Scale Drift Internal Reference ±30 ±30 ±30 ppm/°C External Reference ±5 ±5 ±5 ppm/°C Gain Matching External Reference ±0.3 ±0.3 ±0.3 %FS Offset Matching ±2 ±2 ±2 mV Transition Noise SENSE = 1V 0.25 0.25 0.25 LSBRMS 229321fa 2