ADS-950MC 데이터 시트보기 (PDF) - Unspecified

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ADS-950MC

18-Bit, 500kHz, Low-Power Sampling A/D Converters

Unspecified 

ADS-950

ABSOLUTE MAXIMUM RATINGS

PARAMETERS

LIMITS

+15V Supply (Pin 9)

–15V Supply (Pin 8)

+5V Supply (Pins 10, 14)

–5V Supply (Pin 11)

Digital Input (Pin 16)

Analog Input (Pin 4)

Lead Temperature (10 seconds)

0 to +16

0 to –16

0 to +6

0 to –6

–0.3 to +VDD +0.3

±15

+300

UNITS

Volts

Volts

Volts

Volts

Volts

Volts

°C

®

®

PHYSICAL/ENVIRONMENTAL

PARAMETERS

MIN. TYP.

MAX. UNITS

Operating Temp. Range, Case

ADS-951MC

ADS-951MM

Thermal Impedance

qjc

qca

Storage Temperature Range

Package Type

Weight

0

—

+70

°C

–55

—

+125

°C

—

5

—

°C/Watt

—

22

—

°C/Watt

–65

—

+150

°C

32-pin,side-brazed, metal-sealed, ceramic TDIP

0.46 ounces (13 grams)

FUNCTIONAL SPECIFICATIONS

(TA = +25°C, ±VCC = ±15V, ±VDD = ±5V, 500kHz sampling rate, and a minimum 1 minute warmup ➀ unless otherwise specified.)

ANALOG INPUT

MIN.

+25°C

TYP.

MAX.

0 to +70°C

MIN.

TYP. MAX.

–55 to +125°C

MIN. TYP. MAX.

Input Voltage Range ➁

Input Resistance

Input Capacitance

—

±5

—

—

±5

—

—

±5

—

—

500

—

—

500

—

—

500

—

—

7

15

—

7

15

—

7

15

DIGITAL INPUT

Logic Levels

Logic "1"

Logic "0"

Logic Loading "1"

Logic Loading "0"

Start Convert Positive Pulse Width ➂

+2.0

—

—

—

—

—

—

—

20

500

—

+2.0

—

—

+2.0

+0.8

—

—

+0.8

—

+20

—

—

+20

—

–20

—

—

–20

—

—

20

500

—

20

—

—

—

+0.8

—

+20

—

–20

500

—

STATIC PERFORMANCE

Resolution

Integral Nonlinearity (fin = 10kHz)

Differential Nonlinearity (fin = 10kHz)

Full Scale Absolute Accuracy

Bipolar Zero Error (Tech Note 2)

Bipolar Offset Error (Tech Note 2)

Gain Error (Tech Note 2)

No Missing Codes (fin = 10kHz)

—

—

–0.95

—

—

—

—

18

18

±0.75

±0.5

±0.1

±0.1

±0.1

±0.1

—

—

—

+1

±0.25

±0.15

±0.2

±0.25

—

—

—

–0.95

—

—

—

—

18

18

±1.5

±0.5

±0.25

±0.15

±0.2

±0.25

—

—

—

+1

±0.4

±0.25

±0.3

±0.4

—

—

—

–0.95

—

—

—

—

18

18

±2

±0.50

±0.4

±0.25

±0.3

±0.4

—

—

—

+1.25

±0.8

±0.5

±0.6

±0.9

—

DYNAMIC PERFORMANCE

Peak Harmonics (–0.5dB)

dc to 100kHz

—

–90

—

—

–90

—

—

–86

—

Total Harmonics Distortion (–0.5dB)

dc to 100kHz

—

–89

—

—

–89

—

—

–85

—

Signal-to-Noise Ratio

(w/o distortion, –0.5dB)

dc to 100kHz

92

94

—

92

94

—

—

92

—

Signal-to-Noise Ratio ➃

(& distortion, –0.5dB)

dc to 100kHz

—

86

—

—

86

—

—

82

—

Noise

—

38

48

—

38

48

—

38

—

Two-Tone Intermodulation

Distortion (fin = 100kHz,

240kHz, fs = 1MHz, –0.5dB)

—

–85

—

—

–85

—

—

–85

—

Input Bandwidth (–3dB)

Small Signal (–20dB input)

—

TBD

—

—

TBD

—

—

TBD

—

Large Signal (–0.5dB input)

—

TBD

—

—

TBD

—

—

TBD

—

Feedthrough Rejection (fin = 500kHz)

—

84

—

—

84

—

—

84

—

Slew Rate

—

TBD

—

—

TBD

—

—

TBD

—

Aperture Delay Time

—

+20

—

—

+20

—

—

+20

—

Aperture Uncertainty

—

5

—

—

5

—

—

5

—

S/H Acquisition Time

( to ±0.003%FSR, 10V step)

—

260

—

—

260

—

—

260

—

Overvoltage Recovery Time ➄

—

1

—

—

1

—

—

1

—

A/D Conversion Rate

500

—

—

500

—

—

500

—

—

UNITS

Volts

W

pF

Volts

Volts

µA

µA

ns

Bits

LSB

LSB

%FSR

%FSR

%FSR

%

Bits

dB

dB

dB

dB

µVrms

dB

MHz

MHz

dB

V/µs

ns

ps rms

ns

µs

kHz

2

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