AD9040A/PWB 查看數據表（PDF） - Analog Devices

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AD9040A/PWB

10-Bit 40 MSPS A/D Converter

Analog Devices 

AD9040A

Parameter (Conditions)

ENCODE INPUT

Logic “1” Voltage

Logic “0” Voltage

Logic “1” Current

Logic “0” Current

Input Capacitance

Encode Pulsewidth (High) (tEH)6

Encode Pulsewidth (Low) (tEL)6

DIGITAL OUTPUTS

Logic “1” Voltage

Logic “0” Voltage

Output Coding

POWER SUPPLY

VD Supply Current

+VS Supply Current

–VS Supply Current

Power Dissipation

Power Supply

Rejection Ratio (PSRR)7

Temp

Full

Full

Full

Full

+25°C

+25°C

+25°C

Full

Full

Full

Full

Full

Full

+25°C

Test

AD9040AJN/JR

Level

Min

Typ

Max

Units

VI

4.0

V

VI

1.0

V

VI

±1

µA

VI

±1

µA

V

14

pF

IV

10

100

ns

IV

10

100

ns

VI

4.95

V

VI

0.05

V

Offset Binary

VI

13

20

mA

VI

89

110

mA

VI

87

105

mA

VI

0.94

1.2

W

I

± 15

mV/V

NOTES

1“Gain Tempco” is for converter using internal reference; “Temperature

Coefficient” is for bandgap reference only.

2Output propagation delay (tPD) is measured from the 50% point of the falling

edge of the encode command to the min/max voltage levels of the digital

outputs with 10 pF maximum loads.

3RMS signal to rms noise with analog input signal 1 dB below full scale at

specified frequency.

4ENCODE = 32 MSPS.

53rd order intermodulation measured with analog input frequencies of 2.3 MHz

and 2.4 MHz at 7 dB below full scale.

6For rated performance at 40 MSPS, duty cycle of encode command should be

50% ± 10%.

7Measured as the ratio of the change in offset voltage for a 5% change in +V S

or –VS.

Specifications subject to change without notice.

EXPLANATION OF TEST LEVELS

Test Level

I – 100% Production Tested.

II – 100% production tested at +25°C, and sample tested at

specified temperatures. AC testing done on sample basis.

III – Sample Tested Only.

IV – Parameter is guaranteed by design and characterization

testing.

V – Parameter is a typical value only.

VI – All devices are 100% production tested at +25°C. 100%

production tested at temperature extremes for military

temperature devices; guaranteed by design and character-

ization testing for industrial devices.

ABSOLUTE MAXIMUM RATINGS1

±VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±7 V

VD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7 V

ANALOG IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . –VS to +VS

DIGITAL INPUTS . . . . . . . . . . . . . . . . . . . . . . . . . 0 V to +VS

VREF Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 V to +VS

Digital Output Current . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA

Operating Temperature

AD9040AJN/JR . . . . . . . . . . . . . . . . . . . . . . . . 0°C to +70°C

Storage Temperature . . . . . . . . . . . . . . . . . –65°C to +150°C

Maximum Junction Temperature2 (JN/JR Suffixes) . . . +150°C

Lead Soldering Temp (10 sec) . . . . . . . . . . . . . . . . . . . +300°C

NOTES

1Absolute maximum ratings are limiting values to be applied individually, and

beyond which the serviceability of the circuit may be impaired. Functional

operability is not necessarily implied. Exposure to absolute maximum rating

conditions for an extended period of time may affect device reliability.

2Typical thermal impedances (parts soldered to board):

N Package (Plastic DIP): θJA = 42°C/W; θJC = 10°C/W.

R Package (SOIC): θJA = 47°C/W; θJC = 10°C/W.

Model

AD9040AJN

AD9040AJR

AD9040A/PWB

AD9040A/PCB

ORDERING GUIDE

Temperature Range

Package Description

0°C to +70°C

28-Lead Plastic DIP

0°C to +70°C

28-Lead SOIC Package

Printed Circuit Board (Only) of Evaluation Circuit

Complete Evaluation Board, Assembled and Tested,

Including AD9040AJR

Package Option

N-28

R-28

REV. B

–3–

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