Datasheet

MAX19707
10-Bit, 45Msps, Ultra-Low-Power
Analog Front-End
_______________________________________________________________________________________ 5
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= 3V, OV
DD
= 1.8V, internal reference (1.024V), C
L
≈ 10pF on all digital outputs, f
CLK
= 45MHz (50% duty cycle), Rx ADC input
amplitude = -0.5dBFS, Tx DAC output amplitude = 0dBFS, differential Rx ADC input, differential Tx DAC output, C
REFP
= C
REFN
=
C
COM
= 0.33µF, unless otherwise noted. C
L
< 5pF on all aux-DAC outputs. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
Tx DAC DC ACCURACY
Resolution N 10 Bits
Integral Nonlinearity INL
±0.3
LSB
Differential Nonlinearity DNL Guaranteed monotonic (Note 6) -1
±0.2
+1 LSB
T
A
≥ +25°C -4 ±1 +4
Residual DC Offset V
OS
T
A
< +25°C -4.5 ±1
+4.5
mV
T
A
≥ +25°C -30
+30
Full-Scale Gain Error
Incl ud e r efer ence er r or
( p eak- to- p eak er r or )
T
A
< +25°C -40
+40
mV
Tx DAC DYNAMIC PERFORMANCE
DAC Conversion Rate f
CLK
(Note 2) 45
MHz
In-Band Noise Density N
D
f
OUT
= 2.2MHz, f
CLK
= 45MHz
-130.6
dBc/Hz
Third-Order Intermodulation
Distortion
IM3 f
1
= 2MHz, f
2
= 2.2MHz 80 dBc
Glitch Impulse 10
pV•s
Spurious-Free Dynamic Range to
Nyquist
SFDR f
CLK
= 45MHz, f
OUT
= 2.2MHz 60
73.2
dBc
Total Harmonic Distortion to
Nyquist
THD f
CLK
= 45MHz, f
OUT
= 2.2MHz -71 -59 dB
Signal-to-Noise Ratio to Nyquist SNR f
CLK
= 45MHz, f
OUT
= 2.2MHz
57.1
dB
Tx DAC INTERCHANNEL CHARACTERISTICS
I-to-Q Output Isolation f
OUTX,Y
= 2MHz, f
OUTX,Y
= 2.2MHz 85 dB
T
A
≥ +25°C
-0.3 ±0.01 +0.3
Gain Mismatch Between DAC
Outputs
Measured at DC
T
A
< +25°C
-0.42 +0.42
dB
Phase Mismatch Between DAC
Outputs
f
OUT
= 2.2MHz, f
CLK
= 45MHz
±0.07
D eg r ees
Differential Output Impedance
800
Ω
Tx DAC ANALOG OUTPUT
Full-Scale Output Voltage V
FS
±400
mV
Bits CM1 = 0, CM0 = 0 (default) 1.0
1.05
1.1
Bits CM1 = 0, CM0 = 1
0.95
Bits CM1 = 1, CM0 = 0
0.80
Output Common-Mode Voltage V
COM
Bits CM1 = 1, CM0 = 1
0.71
V