AD10226AB datasheet(3/20 Pages) AD

部件名	AD10226AB

功能描述	Dual-Channel, 12-Bit 125 MSPS IF Sampling A/D Converter

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制造商	AD [Analog Devices]

网页	http://www.analog.com

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REV. 0

–3–

AD10226

Test

Parameter

Temp

Level

Min

Typ

Max

Unit

DYNAMIC PERFORMANCE

Signal-to-Noise Ratio (SNR)

9 (Without Harmonics)

fIN = 10.3 MHz

25

°CI

66.5

68.5

dBFS

fIN = 49 MHz

25

°CV

67

dBFS

fIN = 71 MHz

25

°CI

63

66

dBFS

fIN = 121 MHz

25

°CV

64

dBFS

fIN = 250 MHz

25

°CV

60

dBFS

Signal-to-Noise Ratio (SINAD)

10 (With Harmonics)

fIN = 10.3 MHz

25

°CI

65.5

68

dBFS

fIN = 49 MHz

25

°CV

66.5

dBFS

fIN = 71 MHz

25

°CI

62.5

65

dBFS

fIN = 121 MHz

25

°CV

62.5

dBFS

fIN = 250 MHz

25

°CV

59.5

dBFS

Spurious-Free Dynamic Range

11

fIN = 10 MHz

25

°CI

76.5

82

dBFS

fIN = 41 MHz

25

°CV

77

dBFS

fIN = 71 MHz

25

°CI

66

72

dBFS

fIN = 121 MHz

25

°CV

71

dBFS

fIN = 250 MHz

25

°CV

70

dBFS

Two-Tone Intermodulation

Distortion

12 (IMD)

fIN = 29.3 MHz; fIN = 30.3 MHz

25

°CV

78

dBc

fIN = 150 MHz; fIN = 151 MHz

25

°CV

70

dBc

Channel-to-Channel Isolation

13

fIN = 121 MHz

Full

IV

85

dB

NOTES

1All ac specifications tested by driving ENCODE and

ENCODE differentially, with the analog input applied to A

INX1 and AINX2 tied to ground.

2SFDR enabled (SFDR = 1) for DNL and INL specifications.

3Gain error measured at 10.3 MHz.

4Input VSWR, see TPC 14.

5See Figure 1, Timing Diagram.

6t

V and tPD are measured from the transition points of the ENCODE input to the 50%/50% levels of the digital outputs swing. The digital output load during

test is not to exceed an ac load of 10 pF or a dc current of

±40 A.

7Supply voltages should remain stable within

±5% for normal operation.

8Power dissipation measures with encode at rated speed.

9Analog input signal power at –1 dBFS; signal-to-noise (SNR) is the ratio of signal level to total noise (first six harmonics removed). ENCODE = 125 MSPS,

SFDR mode = 1. SNR is reported in dBFS, related back to converter full-scale.

10Analog input signal power at –1 dBFS; signal-to-noise and distortion (SINAD) is the ratio of signal level to total noise + harmonics. ENCODE = 125 MSPS.

SINAD is reported in dBFS, related back to converter full-scale.

11Analog input signal equals –1 dBFS; SFDR is ratio of converter full-scale to worst spur.

12Both input tones at –7 dBFS; two-tone intermodulation distortion (IMD) rejection is the ratio of either tone to the worst third order intermod product.

13Channel-to-channel isolation tested with A channel/50

Ω terminated (A

IN A2) grounded and a full-scale signal applied to B channel (A IN B2).

Specifications subject to change without notice.

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