ADS-943 데이터 시트보기 (PDF) - DATEL Data Acquisition products

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ADS-943

14-Bit, 3MHz, low-distortion sampling A/D converter

DATEL Data Acquisition products  

ADS-943

®

®

ABSOLUTE MAXIMUM RATINGS

PARAMETERS

LIMITS

+5V Supply (Pins 13, 22)

–5V Supply (Pin 20)

Digital Input (Pin 18)

Analog Input (Pin 21)

Lead Temperature (10 seconds)

0 to +6

0 to –6

–0.3 to +VDD +0.3

–5 to +5

+300

UNITS

Volts

Volts

Volts

Volts

°C

PHYSICAL/ENVIRONMENTAL

PARAMETERS

MIN. TYP. MAX. UNITS

Operating Temp. Range, Case

ADS-943MC, GC

ADS-943MM, GM, 883, G/883

Thermal Impedance

θjc

θca

Storage Temperature Range

Package Type

Weight

0

—

+70

°C

–55

—

+125

°C

—

6

—

°C/Watt

—

23

—

°C/Watt

–65

—

+150

°C

24-pin,metal-sealed, ceramic DDIP or SMT

0.42 ounces (12 grams)

FUNCTIONAL SPECIFICATIONS

(TA = +25°C, ±VDD = ±5V, 3MHz sampling rate, and a minimum 3 minute warmup Œ unless otherwise specified.)

ANALOG INPUT

Input Voltage Range 

Input Resistance

Input Capacitance

DIGITAL INPUT

MIN.

—

—

—

+25°C

TYP.

±2

280

6

MAX.

—

—

15

0 to +70°C

MIN.

TYP.

MAX.

—

±2

—

—

280

—

—

6

15

Logic Levels

Logic "1"

+2.0

—

—

+2.0

—

—

Logic "0"

—

—

+0.8

—

—

+0.8

Logic Loading "1"

—

—

+20

—

—

+20

Logic Loading "0"

—

—

–20

—

—

–20

Start Convert Positive Pulse Width Ž

10

20

—

10

20

—

STATIC PERFORMANCE

Resolution

Integral Nonlinearity (fin = 10kHz)

Differential Nonlinearity (fin = 10kHz)

Full Scale Absolute Accuracy

Bipolar Zero Error (Tech Note 2)

Gain Error (Tech Note 2)

No Missing Codes (fin = 10kHz)

DYNAMIC PERFORMANCE

—

—

–0.95

—

—

—

14

14

±0.75

±0.5

±0.15

±0.1

±0.2

—

—

—

+1.25

±0.4

±0.3

±0.5

—

—

—

–0.95

—

—

—

14

14

±0.75

±0.5

±0.15

±0.1

±0.2

—

—

—

+1.25

±0.4

±0.3

±0.5

—

Peak Harmonics (–0.5dB)

dc to 500kHz

500kHz to 1MHz

1MHz to 1.5MHz

Total Harmonic Distortion (–0.5dB)

dc to 500kHz

500kHz to 1MHz

1MHz to 1.5MHz

Signal-to-Noise Ratio

(w/o distortion, –0.5dB)

dc to 500kHz

500kHz to 1MHz

1MHz to 1.5MHz

Signal-to-Noise Ratio 

(& distortion, –0.5dB)

dc to 500kHz

500kHz to 1MHz

1MHz to 1.5MHz

Noise

Two-Tone Intermodulation

Distortion (fin = 975kHz,

1.2MHz, fs = 3MHz, –0.5dB)

Input Bandwidth (–3dB)

Small Signal (–20dB input)

Large Signal (–0dB input)

Feedthrough Rejection (fin = 1.5MHz)

Slew Rate

Aperture Delay Time

Aperture Uncertainty

—

–83

–77

—

–83

–77

—

–83

–77

—

–83

–77

—

–83

–77

—

–83

–77

—

–80

–76

—

–80

–76

—

–80

–76

—

–80

–76

—

–80

–76

—

–80

–76

76

79

—

76

79

—

76

79

—

76

79

—

75

78

—

75

78

—

73

77

—

73

77

—

73

77

—

—

125

—

73

77

—

73

77

—

73

77

—

—

125

—

—

–82

—

—

30

—

—

10

—

—

85

—

—

±400

—

—

+5

—

—

2

—

—

–82

—

—

30

—

—

10

—

—

85

—

—

±400

—

—

+5

—

—

2

—

–55 to +125°C

MIN. TYP. MAX.

—

±2

—

—

280

—

—

6

15

UNITS

Volts

Ω

pF

+2.0

—

—

Volts

—

—

+0.8

Volts

—

—

+20

µA

—

—

–20

µA

10

20

—

ns

—

—

–0.95

—

—

—

14

14

±1

±0.75

±0.4

±0.3

±0.4

—

—

—

+1.5

±0.6

±0.6

±1.25

—

Bits

LSB

LSB

%FSR

%FSR

%

Bits

—

–81

–75

dB

—

–81

–75

dB

—

–81

–75

dB

—

–78

–74

dB

—

–77

–73

dB

—

–77

–73

dB

75

78

—

dB

74

77

—

dB

74

77

—

dB

71

75

—

dB

71

75

—

dB

71

74

—

dB

—

125

—

µVrms

—

–82

—

dB

—

30

—

MHz

—

10

—

MHz

—

85

—

dB

—

±400

—

V/µs

—

+5

—

ns

—

2

—

ps rms

2

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