參數(shù)資料
型號(hào): AD9237BCPZRL7-20
廠商: Analog Devices Inc
文件頁數(shù): 19/24頁
文件大?。?/td> 0K
描述: IC ADC 12BIT SGL 20MSPS 32LFCSP
產(chǎn)品變化通告: Product Discontinuance 27/Oct/2011
標(biāo)準(zhǔn)包裝: 1,500
位數(shù): 12
采樣率(每秒): 20M
數(shù)據(jù)接口: 并聯(lián)
轉(zhuǎn)換器數(shù)目: 3
功率耗散(最大): 85mW
電壓電源: 單電源
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 32-VFQFN 裸露焊盤,CSP
供應(yīng)商設(shè)備封裝: 32-LFCSP-VQ(5x5)
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 2 個(gè)單端,單極;1 個(gè)差分,單極
AD9237
Data Sheet
Rev. B | Page 4 of 24
DIGITAL SPECIFICATIONS
Table 2.
AD9237BCP-20
AD9237BCP-40
AD9237BCP-65
Parameter
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Unit
LOGIC INPUTS
High Level Input Voltage
2.0
V
Low Level Input Voltage
0.8
V
High Level Input Current
–10
+10
–10
+10
–10
+10
A
Low Level Input Current
–10
+10
–10
+10
–10
+10
A
Input Capacitance
2
pF
LOGIC OUTPUTS1
DRVDD = 3.3 V
High-Level Output Voltage (IOH = 50 A)
3.29
V
High-Level Output Voltage (IOH = 0.5 mA)
3.25
V
Low-Level Output Voltage (IOL = 1.6 mA)
0.2
V
Low-Level Output Voltage (IOL = 50 A)
0.05
V
DRVDD = 2.5 V
High-Level Output Voltage (IOH = 50 A)
2.49
V
High-Level Output Voltage (IOH = 0.5 mA)
2.45
V
Low-Level Output Voltage (IOL = 1.6 mA)
0.2
V
Low-Level Output Voltage (IOL = 50 A)
0.05
V
1 Output voltage levels measured with 5 pF load on each output.
AC SPECIFICATIONS
AVDD = 3 V, DRVDD = 2.5 V, maximum sample rate, 2 V p-p differential input, AIN = –0.5 dBFS, 1.0 V internal reference, TMIN to TMAX,
unless otherwise noted.
Table 3.
AD9237BCP-20
AD9237BCP-40
AD9237BCP-65
Parameter
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Unit
SIGNAL-TO-NOISE RATIO (SNR)
f
INPUT = 2.4 MHz
66.8
66.5
dBc
f
INPUT = 9.7 MHz
65.6
66.6
dBc
f
INPUT = 19.6 MHz
65.3
66.6
dBc
f
INPUT = 34.2 MHz
64.0
66.1
dBc
f
INPUT = 70 MHz
66.0
66.3
65.9
dBc
SIGNAL-TO-NOISE RATIO AND DISTORTION (SINAD)
f
INPUT = 2.4 MHz
66.7
66.4
66.3
dBc
f
INPUT = 9.7 MHz
65.1
66.5
dBc
f
INPUT = 19.6 MHz
64.4
66.4
dBc
f
INPUT = 34.2 MHz
63.5
65.8
dBc
f
INPUT = 70 MHz
65.6
65.8
65.2
dBc
EFFECTIVE NUMBER OF BITS (ENOB)
f
INPUT = 9.7 MHz
10.8
Bits
f
INPUT = 19.6 MHz
10.7
Bits
f
INPUT = 34.2 MHz
10.6
Bits
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