Datasheet

LTC2288/LTC2287/LTC2286
2
228876fa
TOP VIEW
UP PACKAGE
64-LEAD (9mm × 9mm) PLASTIC QFN
T
JMAX
= 125°C, θ
JA
= 20°C/W
EXPOSED PAD (PIN 65) IS GND AND MUST BE SOLDERED TO PCB
A
INA
+
1
A
INA
–
2
REFHA 3
REFHA 4
REFLA 5
REFLA 6
V
DD
7
CLKA
8
CLKB 9
V
DD
10
REFLB 11
REFLB 12
REFHB 13
REFHB 14
A
INB
–
15
A
INB
+
16
48 DA3
47 DA2
46 DA1
45 DA0
44 NC
43 NC
42 NC
41 NC
40 OFB
39 DB9
38 DB8
37 DB7
36 DB6
35 DB5
34 DB4
33 DB3
65
64 GND 63 V
DD
62 SENSEA 61 VCMA 60 MODE 59 SHDNA 58 OEA 57 OFA 56 DA9 55 DA8 54 DA7 53 DA6 52 DA5 51 DA4 50 OGND 49 OV
DD
GND
17
V
DD
18
SENSEB
19
VCMB
20
MUX 21
SHDNB 22
OEB 23
NC 24 NC 25 NC 26 NC 27
DB0 28 DB1 29 DB2 30
OGND 31
OV
DD
32
ABSOLUTE AXI U RATI GS
W
WW
U
PACKAGE/ORDER I FOR ATIO
UUW
OV
DD
= V
DD
(Notes 1, 2)
Supply Voltage (V
DD
) ................................................. 4V
Digital Output Ground Voltage (OGND) ....... –0.3V to 1V
Analog Input Voltage (Note 3) ..... –0.3V to (V
DD
+ 0.3V)
Digital Input Voltage .................... –0.3V to (V
DD
+ 0.3V)
Digital Output Voltage ................ –0.3V to (OV
DD
+ 0.3V)
ORDER PART
NUMBER
QFN PART*
MARKING
LTC2288UP
LTC2288UP
LTC2287UP
LTC2287UP
LTC2286UP
LTC2286UP
LTC2288CUP
LTC2288IUP
LTC2287CUP
LTC2287IUP
LTC2286CUP
LTC2286IUP
Consult LTC Marketing for parts specified with wider operating temperature ranges.
*The temperature grade is identified by a label on the shipping container.
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. (Note 4)
LTC2288 LTC2287 LTC2286
PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
Resolution ● 10 10 10 Bits
(No Missing Codes)
Integral Linearity Error Differential Analog Input (Note 5) ● –0.6 ±0.1 0.6 –0.6 ±0.1 0.6 –0.6 ±0.1 0.6 LSB
Differential Differential Analog Input ● –0.5 ±0.05 0.5 –0.5 ±0.05 0.5 –0.5 ±0.05 0.5 LSB
Linearity Error
Offset Error (Note 6) ● –12 ±212–12±212–12±212 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 ±2mV
Transition Noise SENSE = 1V 0.07 0.07 0.07 LSB
RMS
CO VERTER CHARACTERISTICS
U
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/
Power Dissipation............................................ 1500mW
Operating Temperature Range
LTC2288C, LTC2287C, LTC2286C........... 0°C to 70°C
LTC2288I, LTC2287I, LTC2286I ..........–40°C to 85°C
Storage Temperature Range ..................–65°C to 125°C