Datasheet LTC2255, LTC2254 (Analog Devices) - 2

LTC2255/LTC2254
W W W U U W U ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO OVDD = VDD (Notes 1, 2)
Supply Voltage (V TOP VIEW ORDER PART DD) ... 4V Digital Output Ground Voltage (OGND) ... –0.3V to 1V DD CM NUMBER 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 LTC2255CUH Digital Input Voltage .. –0.3V to (V AIN+ 1 24 D10 DD + 0.3V) LTC2255IUH Digital Output Voltage .. –0.3V to (OV AIN– 2 23 D9 DD + 0.3V) REFH 3 22 D8 LTC2254CUH Power Dissipation .. 1500mW REFH 4 21 OVDD LTC2254IUH Operating Temperature Range 33 REFL 5 20 OGND LTC2255C, LTC2254C ... 0°C to 70°C REFL 6 19 D7 LTC2255I, LTC2254I ...–40°C to 85°C V 7 18 DD D6 QFN PART* Storage Temperature Range ..–65°C to 125°C GND 8 17 D5 MARKING 9 10 11 12 13 14 15 16 2255 OE D0 D1 D2 D3 D4 CLK SHDN 2254 UH PACKAGE 32-LEAD (5mm × 5mm) PLASTIC QFN TJMAX = 125°C, θJA = 34°C/W EXPOSED PAD (PIN 33) IS GND MUST BE SOLDERED TO PCB
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) LTC2255 LTC2254 PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
Resolution (No Missing Codes) ● 14 14 Bits Integral Linearity Error Differential Analog Input (Note 5) ● –5 ±1 5 –5.5 ±1 5.5 LSB Differential Linearity Error Differential Analog Input ● –1 ±0.5 1 –1 ±0.5 1 LSB Offset Error (Note 6) ● –12 ±2 12 –12 ±2 12 mV Gain Error External Reference ● –2.5 ±0.5 2.5 –2.5 ±0.5 2.5 %FS Offset Drift ±10 ±10 µV/°C Full-Scale Drift Internal Reference ±30 ±30 ppm/°C External Reference ±5 ±5 ppm/°C Transition Noise SENSE = 1V 1.3 1.3 LSBRMS 22554fa 2