AD9238 Analog Devices, AD9238 Datasheet - Page 5

• Manufacturer Part Number: AD9238
• Description: Dual 12-Bit, 20/40/65 MSPS, 3 V ADC
• Manufacturer: Analog Devices

Specifications of AD9238

• Resolution (bits): 12bit
• # Chan: 2
• Sample Rate: 65MSPS
• Interface: Par
• Analog Input Type: Diff-Uni,SE-Uni
• Ain Range: (2Vref) p-p,1 V p-p,2 V p-p
• Adc Architecture: Pipelined
• Pkg Type: CSP,QFP

AC SPECIFICATIONS
AVDD = 3 V, DRVDD = 2.5 V, maximum sample rate, CLK_A = CLK_B; A
T
Table 2.
Parameter
SIGNAL-TO-NOISE RATIO (SNR)
SIGNAL-TO-NOISE AND DISTORTION
EFFECTIVE NUMBER OF BITS (ENOB)
WORST HARMONIC (SECOND or THIRD)
SPURIOUS-FREE DYNAMIC RANGE (SFDR)
CROSSTALK
MIN
f
f
f
f
f
RATIO (SINAD)
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
INPUT
to T
= 2.4 MHz
= 19.6 MHz
= 32.5 MHz
= 100 MHz
= 2.4 MHz
= 9.7 MHz
= 19.6 MHz
= 32.5 MHz
= 100 MHz
= 2.4 MHz
= 9.7 MHz
= 19.6 MHz
= 32.5 MHz
= 100 MHz
= 9.7 MHz
= 19.6 MHz
= 35 MHz
= 2.4 MHz
= 9.7 MHz
= 19.6 MHz
= 32.5 MHz
= 100 MHz
= 9.7 MHz
MAX
, DCS enabled, unless otherwise noted.
Temp
25°C
Full
25°C
Full
25°C
Full
25°C
25°C
25°C
Full
25°C
Full
25°C
Full
25°C
25°C
25°C
Full
25°C
Full
25°C
Full
25°C
25°C
Full
Full
Full
25°C
Full
25°C
Full
25°C
Full
25°C
25°C
Full
Test
Level
V
V
IV
V
IV
V
IV
V
V
V
IV
V
IV
V
IV
V
V
V
IV
V
IV
V
IV
V
V
V
V
V
V
I
V
I
V
I
V
V
Rev. C | Page 5 of 48
Min
69.7
69.3
11.3
76.1
AD9238BST/BCP-20
Typ
70.4
70.2
70.4
68.7
70.2
70.1
70.2
67.9
11.5
11.4
11.5
11.1
−84.0
86.0
84.0
86.0
−85.0
IN
= −0.5 dBFS differential input, 1.0 V internal reference,
Max
Min
69.7
69.4
11.3
76.7
AD9238BST/BCP-40
Typ
70.4
70.1
70.3
68.3
70.2
69.9
70.1
67.9
11.5
11.4
11.4
11.1
−85.0
86.0
85.0
86.0
−85.0
Max
Min
68.7
68.1
11.1
72.5
AD9238BST/BCP-65
Typ
70.3
69.3
70.0
67.6
70.1
68.9
69.1
66.6
11.4
11.2
11.3
10.9
−80.0
86.0
80.0
80.5
75.0
−85.0
Max
AD9238
Unit
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Bits
Bits
Bits
Bits
Bits
Bits
Bits
Bits
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dB