SP574B/674B/1674B/774B

12–Bit Sampling A/D Converters

© Copyright 2000 Sipex Corporation

4

TYPICAL AC DYNAMICS

Measurement/Model

SP574B

SP674B

SP1674B

SP774B

Unit

Test Conditions:

Sampling Rate

40

67

100

125

kHz

Input Frequency (F

19314961

kHz

SFDR

90

85

80

77

dB

THD

-80

-80

-77

-76

dB

SINAD

72

72

71

71

dB

SNR

72.5

72.5

72.5

72.5

dB

Note:

1.

Refer to Figure 10, for typical FFT at Nyquist sampling rate.

(Typical @ 25

°C with V

PARAMETER

MIN.

TYP.

MAX.

UNIT

CONDITIONS

POWER REQUIREMENTS

V

LOGIC

+4.5

+5.5

V

I

LOGIC

SP574B

13

mA

SP674B

13

mA

SP1674B

13

mA

SP774B

13

mA

V

CC

+11.4

+16.5

V

I

CC

SP574B

79

mA

SP674B

79

mA

SP1674B

10

12.5

mA

SP774B

10

12.5

mA

POWER DISSIPATION

SP574B

110

150

mW

SP674B

110

150

mW

SP1674B

155

200

mW

SP774B

155

200

mW

ENVIRONMENTAL

Operating Temperature Range

–J, –K

0

+70

°C

–A, –B

–40

+85

°C

–S, –T

–55

+125

°C

Storage Temperature Range

–J, –K

–40

+85

°C

–A, –B, –S, –T

–65

+150

°C

Notes:

1.

Available for external loads. External load should not change during conversion. When supplying an

external load and operating on a +12V supply, a buffer amplifier must be provided for the reference

output.

2.

Minimum resolution for which no missing codes are guaranteed.

3.

Externally adjustable to zero. See

Calibration information.

4.

Fixed 50

Ω resistor between REF OUT and REF IN.

5.

Specifications are identical for all models unless otherwise noted.