ADS-945EX データシートの表示（PDF） - DATEL Data Acquisition products

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ADS-945EX

14-Bit, 10MHz Sampling A/D Converters

DATEL Data Acquisition products  

ADS-945

®

®

ABSOLUTE MAXIMUM

PARAMETERS

+15V Supply (Pins 14)

–15V Supply (Pin 12)

+5V Supply (Pins 55, 69)

–5V Supply (Pin 57, 63)

Digital Input (Pin 32, 34)

Analog Input (Pin 4)

Lead Temperature (10 seconds)

LIMITS

0 to +16

0 to –16

0 to +6

0 to –6

–0.3 to +VDD +0.3

–15 to +15

+300

UNITS

Volts

Volts

Volts

Volts

Volts

Volts

°C

PHYSICAL/ENVIRONMENTAL

PARAMETERS

MIN. TYP. MAX. UNITS

Operating Temp. Range, Case

ADS-945

0

ADS-945EX

–55

Thermal Impedance

θjc

—

θca

—

Storage Temperature Range

–65

Package Type

Weight

—

+70

°C

—

+125

°C

10

—

8

—

—

+150

2" x 4" module

2.1 oz. (60 grams)

°C/Watt

°C/Watt

°C

FUNCTIONAL SPECIFICATIONS

(TA = +25°C, ±VCC = ±15V, +VDD = +5V, VDD = –5.2V, 10MHz sampling rate, and a minimum 10 minute warmup ➀ unless otherwise specified.)

ANALOG INPUT

Input Voltage Range ➁

Input Resistance

Input Capacitance

Input Bias Current

DIGITAL INPUT

Logic Levels

Logic "1"

Logic "0"

Logic Loading "1"

Logic Loading "0"

Start Convert Positive Pulse Width ➂

STATIC PERFORMANCE

Resolution

Integral Nonlinearity (dc input)

Differential Nonlinearity (fin = 10kHz)

Full Scale Absolute Accuracy

Bipolar Offset Error (Tech Note 2)

Gain Error (Tech Note 2)

No Missing Codes (fin = 10kHz)

DYNAMIC PERFORMANCE

Peak Harmonics (–0.5dB)

dc to 1mHz

1MHz to 2.5MHz

2.5MHz to 5MHz

Total Harmonic Distortion (–0.5dB)

dc to 1MHz

1MHz to 2.5MHz

2.5MHz to 5MHz

Signal-to-Noise Ratio

(w/o distortion, –0.5dB)

dc to 1MHz

100kHz to 2.5MHz

2.5MHz to 5MHz

Signal-to-Noise Ratio ➃

(& distortion, –0.5dB)

dc to 100kHz

1MHz to 2.5MHz

2.5MHz to 5MHz

Noise

Two-tone Intermodulation

Distortion (fin = 1.975MHz,

2.45MHz, fs = 10MHz, –0.5dB)

Input Bandwidth (–3dB)

Small Signal (–20dB input)

Large Signal (–0.5dB input)

Feedthrough Rejection (fin = 4.85MHz)

Slew Rate

Aperture Delay Time

Aperture Uncertainty

MIN.

—

300

—

—

+25°C

TYP.

±1.25

500

10

±3

MAX.

—

—

15

—

0 to + 0°C

MIN. TYP. MAX.

—

±1.25

—

300

500

—

—

10

15

—

±3

—

55 to +125°C

MIN. TYP. MAX.

—

±1.25

—

300

500

—

—

10

15

—

±3

—

UNITS

Volts

kΩ

pF

µA

+2.0

—

—

+2.0

—

—

+2.0

—

—

Volts

—

—

+0.8

—

—

+0.8

—

—

+0.8

Volts

—

—

+20

—

—

+20

—

—

+20

µA

—

—

–20

—

—

–20

—

—

–20

µA

10

50

—

10

50

—

10

50

—

ns

—

14

—

—

14

—

—

14

—

Bits

—

±0.5

—

—

±0.75

—

—

±1

—

LSB

–0.99

±0.5

+1.5

–0.99

±0.5

+1.5

–0.99

±0.75

+2.5

LSB

—

±0.2

±0.4

—

±0.3

±0.5

—

±0.3

±0.7

%FSR

—

±0.15

±0.25

—

±0.25

±0.5

—

±0.3

±0.7

%FSR

—

±0.1

±0.2

—

±0.2

±0.4

—

±0.3

±0.7

%

14

—

—

14

—

—

14

—

—

Bits

—

–80

–75

—

–80

–75

—

–79

–73

—

–80

–75

—

–80

–74

—

–78

–71

71

75

—

71

75

—

70

74

—

70

77

—

70

74

—

69

73

—

—

110

—

—

–84

—

—

100

—

—

50

—

—

90

—

—

±650

—

—

±8

—

—

2

—

—

—

—

—

—

—

—

–79

–73

—

—

—

—

—

—

—

–78

–71

—

—

—

—

—

—

69

74

—

—

—

—

—

—

—

69

73

—

—

110

—

—

–84

—

—

100

—

—

50

—

—

90

—

—

±650

—

—

±8

—

—

2

—

—

—

—

dB

—

—

—

dB

—

–75

–69

dB

—

—

—

dB

—

—

—

dB

—

–75

–68

dB

—

—

—

dB

—

—

—

dB

67

72

—

dB

—

—

—

dB

—

—

—

dB

65

70

—

dB

—

110

—

µVrms

—

–84

—

dB

—

100

—

MHz

—

50

—

MHz

—

90

—

dB

—

±650

—

V/µs

—

±8

—

ns

—

2

—

ps rms

2

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