Data Sheet

AD9278

Rev. A | Page 5 of 44

Parameter1

Test Conditions/Comments

Min

Typ

Max

Unit

Input-Referred Noise Voltage

LNA gain = 15.6 dB

2.0

nV/√Hz

LNA gain = 17.9 dB

1.9

nV/√Hz

LNA gain = 21.3 dB

1.8

nV/√Hz

Noise Figure

LNA gain = 15.6 dB

7.8

dB

LNA gain = 17.9 dB

7.3

dB

LNA gain = 21.3 dB

6.9

dB

Input-Referred Dynamic Range

LNA gain = 15.6 dB

162

dBFS/√Hz

LNA gain = 17.9 dB

160

dBFS/√Hz

LNA gain = 21.3 dB

157

dBFS/√Hz

Output-Referred SNR

10 MHz, 1 kHz offset

153

dBc/√Hz

Two-Tone Intermodulation (IMD3)

−58

dB

Quadrature Phase Error

I to Q, all phases, 1 σ

0.15

Degrees

I/Q Amplitude Imbalance

I to Q, all phases, 1 σ

0.015

dB

Channel-to-Channel Matching

Phase I to I, Q to Q, 1 σ

0.5

Degrees

Amplitude I to I, Q to Q, 1 σ

0.25

dB

POWER SUPPLY, MODE I/II/III/IV

AVDD1

1.7

1.8

1.9

V

AVDD23

2.7

3.0

3.6

V

DRVDD

1.7

1.8

1.9

V

TGC mode

178/145/

215/260

mA

CW Doppler mode

32

mA

TGC mode, no signal

108

mA

CW Doppler mode

63

mA

ANSI-644 mode

47/44/48/53

mA

Low power (IEEE 1596.3 similar) mode

33/31/34/38

Total Power Dissipation

(Including Output Drivers)

TGC mode, no signal

704/640/

772/860

815/755/

908/996

mW

CW Doppler mode

252

mW

Power-Down Dissipation

5

mW

Standby Power Dissipation

420

mW

Power Supply Rejection Ratio

(PSRR)

1.6

mV/V

ADC RESOLUTION

12

Bits

ADC REFERENCE

Output Voltage Error

VREF = 1 V

±50

mV

Load Regulation at 1.0 mA

VREF = 1 V

2

mV

Input Resistance

6

kΩ

1

See the AN-835 Application Note, UnderstandingHigh SpeedADC Testing andEvaluation, for a complete set of definitions and information about how these tests were completed.

2

The overrange condition is specified as 6 dB more than the full-scale input range.

3

When the LNA gain is set to 15.6 dB, AVDD2 >3.0 V.