參數(shù)資料
型號(hào): AD7685BCPZRL
廠商: Analog Devices Inc
文件頁(yè)數(shù): 2/28頁(yè)
文件大?。?/td> 0K
描述: IC ADC 16BIT SAR 250KSPS 10LFCSP
產(chǎn)品培訓(xùn)模塊: Motor Control
設(shè)計(jì)資源: Parametric Measurement Unit and Supporting Components for PAD Appls Using AD5522 and AD7685 (CN0104)
Integrated Device Power Supply for PAD with Output Voltage Range 0 V to 25 V (CN0130)
標(biāo)準(zhǔn)包裝: 5,000
系列: PulSAR®
位數(shù): 16
采樣率(每秒): 250k
數(shù)據(jù)接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 15mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 85°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 10-WFDFN 裸露焊盤(pán),CSP
供應(yīng)商設(shè)備封裝: 10-LFCSP-WD(3x3)
包裝: 帶卷 (TR)
輸入數(shù)目和類(lèi)型: 1 個(gè)偽差分,單極
配用: EVAL-AD7685CBZ-ND - BOARD EVAL FOR AD7685
AD7685
Rev. C | Page 10 of 28
TYPICAL PERFORMANCE CHARACTERISTICS
02
96
8-
0
47
CODE
65536
0
16384
32768
49152
IN
L
(
L
S
B
)
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
POSITIVE INL = +0.33LSB
NEGATIVE INL = –0.50LSB
Figure 7. Integral Nonlinearity vs. Code
02
96
8-
0
06
CODE IN HEX
80EA 80EB 80EC 80ED
80E5 80E6 80E7 80E8 80E9
CO
UNT
S
250000
200000
150000
100000
50000
0
00
12
00
204292
27755
29041
20
VDD = REF = 5V
Figure 8. Histogram of a DC Input at the Code Center
02
96
8-
0
07
FREQUENCY (kHz)
120
0
20406080
100
AM
P
L
IT
UD
E
(
d
B
O
F
UL
L
S
CAL
E
)
0
–20
–40
–60
–80
–100
–120
–160
–140
–180
8192 POINT FFT
VDD = REF = 5V
fS = 250kSPS
fIN = 20.45kHz
SNR = 93.3dB
THD = –111.6dB
SFDR = –113.7dB
SECOND HARMONIC = –113.7dB
THIRD HARMONIC = –117.6dB
Figure 9. FFT Plot
02
96
8-
0
08
CODE
65536
0
16384
32768
49152
DN
L
(
L
S
B
)
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
POSITIVE DNL = +0.21LSB
NEGATIVE DNL = –0.30LSB
Figure 10. Differential Nonlinearity vs. Code
02
96
8-
0
09
CODE IN HEX
8058
804E 804F 8050 8051 8052 8053 8054 8055 8056 8057
CO
UNT
S
140000
120000
100000
80000
60000
40000
20000
0
02
213
6956
179
0
60966
125055
8667
59082
VDD = REF = 2.5V
Figure 11. Histogram of a DC Input at the Code Center
02
96
8-
0
10
FREQUENCY (kHz)
120
0
204060
80
100
AM
P
L
IT
UD
E
(
d
B
O
F
UL
L
S
CAL
E
)
0
–20
–40
–60
–80
–100
–120
–140
–160
–180
16384 POINT FFT
VDD = REF = 2.5V
fS = 250kSPS
fIN = 20.45kHz
SNR = 88.8dB
THD = –103.5dB
SFDR = –104.5dB
SECOND HARMONIC = –112.4dB
THIRD HARMONIC = –105.4dB
Figure 12. FFT Plot
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