Typical operating characteristics (continued) – Rainbow Electronics MAX1123 User Manual

Page 7

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MAX1123

1.8V, 10-Bit, 210Msps Analog-to-Digital Converter

with LVDS Outputs for Wideband Applications

_______________________________________________________________________________________

7

SINAD vs. TEMPERATURE (f

IN

= 64.9974MHz,

f

SAMPLE

= 210.0428MHz, A

IN

= -0.5dBFS)

MAX1123 toc19

TEMPERATURE (°C)

SINAD (dBc)

60

35

10

-15

60

59

58

57

56

55

54

53

52

51

50

-40

85

SFDR vs. TEMPERATURE (f

IN

= 64.9974MHz,

f

SAMPLE

= 210.0428MHz, A

IN

= -0.5dBFS)

MAX1123 toc20

TEMPERATURE (°C)

SFDR (dBc)

60

35

10

-15

55

60

65

70

75

80

50

-40

85

POWER DISSIPATION vs. f

SAMPLE

(f

IN

= 60.0126MHz, A

IN

= -0.5dBFS)

MAX1123 toc21

f

SAMPLE

(MHz)

P

DISS

(mW)

170

130

90

50

435

455

445

475

465

495

485

425

10

210

150

110

70

30

190

FS VOLTAGE vs. FS ADJUST RESISTOR

MAX1123 toc22

FS ADJUST RESISTOR (Ω)

V

FS

(V)

900

800

600 700

200 300 400 500

100

1.18

1.20

1.22

1.24

1.26

1.28

1.30

1.32

1.34

1.16

0

1000

RESISTOR VALUE APPLIED
BETWEEN REFADJ AND AGND

RESISTOR VALUE APPLIED
BETWEEN REFADJ AND REFIO

FIGURE 6

SNR vs. VOLTAGE SUPPLY

(f

IN

= 60.0126MHz, A

IN

= -0.5dBFS)

MAX1123 toc23

VOLTAGE SUPPLY (V)

SNR

(dB)

2.0

1.9

1.8

1.7

1.6

60

59

58

57

56

55

54

53

52

51

50

1.5

2.1

AV

CC

= OV

CC

INTERNAL REFERENCE vs. SUPPLY VOLTAGE

(f

SAMPLE

= 210.0057MHz)

MAX1123 toc24

SUPPLY VOLTAGE (V)

V

REFIO

(V)

2.0

1.9

1.8

1.7

1.6

1.2305

1.2310

1.2315

1.2320

1.2325

1.2300

1.5

2.1

MEASURED AT THE REFIO PIN
REFADJ = AV

CC

= OV

CC

0.0E+00

1.0E+04

3.0E+05

2.0E+04

4.0E+05

5.0E+05

511

13207

512

513

174671

514

515

219

NOISE HISTOGRAM

(DC INPUT, 256k-POINT DATA RECORD)

MAX1123 toc25

DIGITAL OUTPUT NOISE

CODE COUNTS

467263

f

SAMPLE

= 210MHz

PROPAGATION DELAY TIMES

vs. TEMPERATURE

MAX1123 toc26

TEMPERATURE (°C)

PROPAGATION DELAY (ns)

60

35

10

-15

1

2

3

4

5

6

0

-40

85

t

CPDL

t

PDL

Typical Operating Characteristics (continued)

(AV

CC

= OV

CC

= 1.8V, AGND = OGND = 0, f

SAMPLE

= 210.0057MHz, -0.5dBFS; see TOCs for detailed information on test condi-

tions, differential input drive, differential sine-wave clock input drive, 0.1µF capacitor on REFIO, internal reference, digital output pins
differential R

L

= 100Ω, T

A

= +25°C.)

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