參數(shù)資料
型號(hào): EVAL-AD7859CB
廠商: Analog Devices, Inc.
英文描述: 3 V to 5 V Single Supply, 200 kSPS 8-Channel, 12-Bit Sampling ADCs
中文描述: 3 V至5 V單電源,200 kSPS的8通道,12位采樣ADC
文件頁(yè)數(shù): 28/28頁(yè)
文件大?。?/td> 535K
代理商: EVAL-AD7859CB
P
C
–28–
OUTLINE DIMENSIONS
Dimensions shown in inches and (mm).
44-Lead PLCC
(P-44A)
0.032 (0.81)
0.026 (0.66)
0.021 (0.53)
0.013 (0.33)
0.056 (1.42)
0.042 (1.07)
0.025 (0.63)
0.015 (0.38)
0.180 (4.57)
0.165 (4.19)
0.63 (16.00)
0.59 (14.99)
0.110 (2.79)
0.085 (2.16)
0.040 (1.01)
0.025 (0.64)
0.050
(1.27)
BSC
0.656 (16.66)
0.695 (17.65)
0.048 (1.21)
0.042 (1.07)
0.048 (1.21)
0.042 (1.07)
40
6
TOP VIEW
39
29
18
17
PIN 1
IDENTIFIER
7
28
0.020
(0.50)
R
44-Pin PQFP
(S-44)
1
44
34
33
23
22
12
11
TOP VIEW
PIN 1
0.557 (14.15)
0.537 (13.65)
0.397 (10.1)
0.390 (9.9)
0.016 (0.4)
0.012 (0.3)
0.033 (0.85)
0.029 (0.75)
0.037 (0.95)
0.026 (0.65)
0.398 (10.1)
0.390 (9.9)
0.083 (2.1)
0.077 (1.95)
0.040 (1.02)
0.032 (0.82)
0.040 (1.02)
0.032 (0.82)
0.096 (2.45)
MAX
8
°
0
°
PAGE INDEX
Topic
FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
PRODUCT HIGHLIGHTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
TIMING SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 4
ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . . . . 5
ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
PINOUTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
TERMINOLOGY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
PIN FUNCTION DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . 7
AD7859/AD7859L ON-CHIP REGISTERS . . . . . . . . . . . . . . . 8
Addressing the On-Chip Registers . . . . . . . . . . . . . . . . . . . . . . 8
Writing/Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
CONTROL REGISTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
STATUS REGISTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
CALIBRATION REGISTERS . . . . . . . . . . . . . . . . . . . . . . . . . 12
Addressing the Calibration Registers . . . . . . . . . . . . . . . . . . . 12
Writing to/Reading from the Calibration Registers . . . . . . . . 12
Adjusting the Offset Calibration Register . . . . . . . . . . . . . . . . 13
Adjusting the Gain Calibration Registers . . . . . . . . . . . . . . . . 13
CIRCUIT INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . 14
CONVERTER DETAILS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
TYPICAL CONNECTION DIAGRAM . . . . . . . . . . . . . . . . . 14
ANALOG INPUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Acquisition Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
DC/AC Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Input Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Transfer Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
REFERENCE SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
AD7859/AD7859L PERFORMANCE CURVES . . . . . . . . . . 17
POWER-DOWN OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 18
POWER-UP TIMES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
POWER VS. THROUGHPUT RATE . . . . . . . . . . . . . . . . . . 19
CALIBRATION SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Calibration Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Calibration on Power-On . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Self-Calibration Description . . . . . . . . . . . . . . . . . . . . . . . . . 21
Self-Calibration Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
System Calibration Description . . . . . . . . . . . . . . . . . . . . . . . 22
System Gain and Offset Interaction . . . . . . . . . . . . . . . . . . . . 23
System Calibration Timing . . . . . . . . . . . . . . . . . . . . . . . . . . 23
PARALLEL INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
MICROPROCESSOR INTERFACING . . . . . . . . . . . . . . . . 25
APPLICATIONS HINTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Grounding and Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Evaluating the AD7859/AD7859L Performance . . . . . . . . . . 27
INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
OUTLINE DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Page
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