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AD7933
(Rev.:RevPrG)

4-Channel, 1.5 MSPS, 12-Bit and 10-Bit Parallel ADCs with a Sequencer

Analog Devices 

Preliminary Technical Data

AD7933/AD7934

AD7934—SPECIFICATIONS

VDD = VDRIVE = 2.7 V to 5.25 V, Internal/External VREF = 2.5 V, unless otherwise noted, FCLKIN = 24 MHz, FSAMPLE = 1.5 MSPS; TA = TMIN to

TMAX, unless otherwise noted.

Table 2.

Parameter

DYNAMIC PERFORMANCE

Signal-to-Noise + Distortion (SINAD)2

Signal-to-Noise Ratio (SNR)2

Total Harmonic Distortion (THD)2

Peak Harmonic or Spurious Noise (SFDR)2

Intermodulation Distortion (IMD)2

Second-Order Terms

Third-Order Terms

Channel-to-Channel Isolation

Aperture Delay2

Aperture Jitter2

Full Power Bandwidth2, 3

DC ACCURACY

Resolution

Integral Nonlinearity2

Differential Nonlinearity2

Total Unadjusted Error

Single-Ended and Pseudo-Differential Input

Offset Error2

Offset Error Match2

Gain Error2

Gain Error Match2

Fully Differential Input

Positive Gain Error2

Positive Gain Error Match2

Zero-Code Error2

Zero-Code Error Match2

Negative Gain Error2

Negative Gain Error Match2

ANALOG INPUT

Single-Ended Input Range

Pseudo-Differential Input Range: VIN+

VIN−

Fully Differential Input Range: VIN+ and VIN−

DC Leakage Current5

VIN+ and VIN−

Input Capacitance

REFERENCE INPUT/OUTPUT

VREF Input Voltage6

DC Leakage Current

VREF Input Impedance

VREFOUT Output Voltage

VREFOUT Temperature Coefficient

VREF Noise

B Version1

70

70

−75

−75

−85

−85

−85

5

50

20

2.5

12

±1

±0.95

TBD

±4.5

±0.5

±2

±0.6

±2

±0.6

±3

±1

±2

±0.6

0 to VREF or 0 to 2 × VREF

0 to VREF or 2 × VREF

−0.1 to +0.4

VCM ± VREF/2

VCM ± VREF

±1

45

10

2.5

±1

10

2.5

15

10

130

Unit

dB min

dB min

dB max

dB max

dB typ

dB typ

dB typ

ns typ

ps typ

MHz typ

MHz typ

Bits

LSB max

LSB max

LSB max

LSB max

LSB max

LSB max

LSB max

LSB max

LSB max

LSB max

LSB max

LSB max

LSB max

V

V

V

V

V

µA max

pF typ

pF typ

V

µA max

kΩ typ

V

ppm/°C typ

µV typ

µV typ

Test Conditions/Comments

FIN = 50 kHz sine wave

−80 dB typ

−82 dB typ

fa = 40.1 kHz, fb = 51.5 kHz

@ 3 dB

@ 0.1 dB

Guaranteed no missed codes to 12 bits

Straight binary output coding

Twos complement output coding

Depending on RANGE bit setting

Depending on RANGE bit setting

VCM = common-mode voltage4 = VREF/2

VCM = VREF, VIN+ or VIN− must remain within GND/VDD

When in track

When in hold

±1% specified performance

±0.1% @ 25°C

0.1 Hz to 10 Hz bandwidth

0.1 Hz to 1 MHz bandwidth

Rev. PrG | Page 5 of 32

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