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参数资料
型号： DC790A
厂商： Linear Technology
文件页数： 20/28页
文件大小： 0K
描述： BOARD DELTA SIGMA ADC LTC2439-1
软件下载： QuikEval System
设计资源： DC790A Design File
DC790A Schematic
标准包装： 1
系列： QuikEval™
ADC 的数量： 1
位数： 16
采样率（每秒）： 6.8
数据接口： MICROWIRE?，串行，SPI?
工作温度： 0°C ~ 70°C
已用 IC / 零件： LTC2439-1
已供物品： 板
相关产品： LTC2439-1CGN#PBF-ND - IC ADC 16BIT 16CH MCRPWR 28SSOP
LTC2439-1IGN#PBF-ND - IC ADC 16BIT 16CH MCRPWR 28SSOP
LTC2439-1CGN#TRPBF-ND - IC ADC 16BIT 16CH MCRPWR 28SSOP
LTC2439-1IGN#TRPBF-ND - IC ADC 16BIT 16CH MCRPWR 28SSOP
LTC2439-1CGN-ND - IC ADC 16BIT 16CH MCRPWR 28SSOP
LTC2439-1IGN-ND - IC ADC 16BIT 16CH MCRPWR 28SSOP
LTC2439-1IGN#TR-ND - IC ADC 16BIT 16CH MCRPWR 28SSOP
LTC2439-1CGN#TR-ND - IC ADC 16BIT 16CH MCRPWR 28SSOP
LTC2439-1
27
24391fa
OUTPUT DATA RATE (READINGS/SEC)
0
102030405060708090 100
OFFSET
ERROR
(LSB)
24361 F24
30
15
0
TA = 85°C
VCC = 5V
REF+ = 5V
REF – = GND
VINCM = 2.5V
VIN = 0V
FO = EXTERNAL OSCILLATOR
TA = 25°C
OUTPUT DATA RATE (READINGS/SEC)
0
102030405060708090 100
+FS
ERROR
(LSB)
24361 F25
420
360
300
240
180
120
60
0
TA = 85°C
VCC = 5V
REF+ = 5V
REF – = GND
IN+ = 3.75V
IN – = 1.25V
FO = EXTERNAL OSCILLATOR
TA = 25°C
OUTPUT DATA RATE (READINGS/SEC)
0
102030405060708090 100
–FS
ERROR
(LSB)
24361 F26
0
60
120
180
240
300
360
420
TA = 85°C
VCC = 5V
REF+ = 5V
REF – = GND
IN+ = 1.25V
IN – = 3.75V
FO = EXTERNAL OSCILLATOR
TA = 25°C
OUTPUT DATA RATE (READINGS/SEC)
0
102030405060708090 100
RESOLUTION
(BITS)
24361 F27
17
16
15
14
13
12
TA = 85°C
VCC = 5V
REF+ = 5V
REF – = GND
VINCM = 2.5V
VIN = 0V
FO = EXTERNAL OSCILLATOR
RESOLUTION = LOG2(VREF/NOISERMS)
TA = 25°C
OUTPUT DATA RATE (READINGS/SEC)
0
102030405060708090 100
RESOLUTION
(BITS)
24361 F28
18
16
14
12
10
8
TA = 85°C
VCC = 5V
REF+ = 5V
REF – = GND
VINCM = 2.5V
–2.5V < VIN < 2.5V
FO = EXTERNAL OSCILLATOR
RESOLUTION = LOG2(VREF/INLMAX)
TA = 25°C
OUTPUT DATA RATE (READINGS/SEC)
0
102030405060708090 100
OFFSET
ERROR
(LSB)
24361 F29
16
8
0
VREF = 5V
VCC = 5V
REF+ = GND
VINCM = 2.5V
VIN = 0V
FO = EXTERNAL OSCILLATOR
TA = 25°C
VREF = 2.5V
Figure 24. Offset Error vs Output
Data Rate and Temperature
Figure 25. +FS Error vs Output
Data Rate and Temperature
Figure 26. –FS Error vs Output
Data Rate and Temperature
Figure 27. Resolution (NoiseRMS ≤ 1LSB)
vs Output Data Rate and Temperature
Figure 28. Resolution (INLMAX ≤ 1LSB)
vs Output Data Rate and Temperature
Figure 29. Offset Error vs Output
Data Rate and Reference Voltage
U
PACKAGE DESCRIPTIO
GN Package
28-Lead Plastic SSOP (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1641)
.150 – .157**
(3.810 – 3.988)
.386 – .393*
(9.804 – 9.982)
GN28 (SSOP) 0502
12
3
4
5
6
7
8
9 10 11 12
.229 – .244
(5.817 – 6.198)
20
21
22
23
24
25
26
27
28
19 18 17
13 14
1615
.016 – .050
(0.406 – 1.270)
.015
± .004
(0.38
± 0.10)
× 45°
0
° – 8° TYP
.0075 – .0098
(0.191 – 0.249)
.053 – .069
(1.351 – 1.748)
.008 – .012
(0.203 – 0.305)
.004 – .009
(0.102 – 0.249)
.0250
(0.635)
BSC
.033
(0.838)
REF
.254 MIN
RECOMMENDED SOLDER PAD LAYOUT
.150 – .165
.0250 TYP
.0165
±.0015
.045
±.005
*DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
**DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
INCHES
(MILLIMETERS)
NOTE:
1. CONTROLLING DIMENSION: INCHES
2. DIMENSIONS ARE IN
3. DRAWING NOT TO SCALE
APPLICATIO S I FOR ATIO
WU
UU
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
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