Datasheet

LTC2298/LTC2297/LTC2296
2
229876fa
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
LTC2298UP
LTC2297UP
LTC2296UP
LTC2298CUP
LTC2298IUP
LTC2297CUP
LTC2297IUP
LTC2296CUP
LTC2296IUP
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)
LTC2298 LTC2297 LTC2296
PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
Resolution ● 14 14 14 Bits
(No Missing Codes)
Integral Linearity Error Differential Analog Input (Note 5) ● –5 ±1.2 5 –5 ±1.2 5 –5 ±1.2 5 LSB
Differential Differential Analog Input ● –1 ±0.5 1 –1 ±0.5 1 –1 ±0.5 1 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 ±0.3 ±0.3 ±0.3 %FS
Offset Matching ±2 ±2 ±2mV
Transition Noise SENSE = 1V 1 1 1 LSB
RMS
CO VERTER CHARACTERISTICS
U
TOP VIEW
65
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 DA7
47 DA6
46 DA5
45 DA4
44 DA3
43 DA2
42 DA1
41 DA0
40 OFB
39 DB13
38 DB12
37 DB11
36 DB10
35 DB9
34 DB8
33 DB7
64 GND 63 V
DD
62 SENSEA 61 VCMA 60 MODE 59 SHDNA 58 OEA 57 OFA 56 DA13 55 DA12 54 DA11 53 DA10 52 DA9 51 DA8 50 OGND 49 OV
DD
GND
17
V
DD
18
SENSEB
19
VCMB
20
MUX 21
SHDNB 22
OEB 23 DB0 24 DB1 25 DB2 26 DB3 27 DB4 28 DB5 29 DB6 30
OGND 31
OV
DD
32
Power Dissipation............................................ 1500mW
Operating Temperature Range
LTC2298C, LTC2297C, LTC2296C........... 0°C to 70°C
LTC2298I, LTC2297I, LTC2296I ..........–40°C to 85°C
Storage Temperature Range ..................–65°C to 125°C
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/