Datasheet LTC2249 (Analog Devices) - 2

LTC2249
W W W U U W U ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO OVDD = VDD (Notes 1, 2)
Supply Voltage (VDD) ... 4V TOP VIEW Digital Output Ground Voltage (OGND) ... –0.3V to 1V DD CM V V SENSE MODE OF D13 D12 D11 Analog Input Voltage (Note 3) ... –0.3V to (VDD + 0.3V) 32 31 30 29 28 27 26 25 Digital Input Voltage .. –0.3V to (VDD + 0.3V) AIN+ 1 24 D10 Digital Output Voltage .. –0.3V to (OVDD + 0.3V) AIN– 2 23 D9 Power Dissipation .. 1500mW REFH 3 22 D8 Operating Temperature Range REFH 4 21 OVDD 33 LTC2249C ... 0°C to 70°C REFL 5 20 OGND REFL 6 19 D7 LTC2249I ...–40°C to 85°C V 7 18 DD D6 Storage Temperature Range ..–65°C to 125°C GND 8 17 D5 9 10 11 12 13 14 15 16 OE D0 D1 D2 D3 D4 CLK SHDN UH PACKAGE 32-LEAD (5mm × 5mm) PLASTIC QFN TJMAX = 125°C, θJA = 34°C/W EXPOSED PAD IS GND (PIN 33) MUST BE SOLDERED TO PCB ORDER PART NUMBER QFN PART MARKING* LTC2249CUH 2249 LTC2249IUH
Order Options
Tape and Reel: Add #TR Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF Lead Free Part Marking: http://www.linear.com/leadfree/ 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) PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution (No Missing Codes) ● 14 Bits Integral Linearity Error Differential Analog Input (Note 5) ● –4 ±1 4 LSB Differential Linearity Error Differential Analog Input ● –1 ±0.5 1 LSB Offset Error (Note 6) ● –12 ±2 12 mV Gain Error External Reference ● –2.5 ±0.5 2.5 %FS Offset Drift ±10 µV/°C Full-Scale Drift Internal Reference ±30 ppm/°C External Reference ±5 ppm/°C Transition Noise SENSE = 1V 1.2 LSBRMS 2249fa 2