Datasheet

MAX5895
16-Bit, 500Msps Interpolating and Modulating
Dual DAC with CMOS Inputs
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(DV
DD1.8
= AV
DD1.8
= 1.8V, AV
CLK
= AV
DD3.3
= DV
DD3.3
= 3.3V, modulator off, 2x interpolation, DATACLK input mode, dual-port
mode, 50Ω double-terminated outputs, external reference at 1.25V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are
at T
A
= +25°C, unless otherwise noted.) (Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Output Propagation Delay t
PD
1x interpolation (Note 4) 2.9 ns
Output Rise Time t
RISE
10% to 90% (Note 5) 0.75 ns
Output Fall Time t
FALL
10% to 90% (Note 5) 1.0 ns
Output Settling Time To 0.5% (Note 5) 11 ns
Output Bandwidth -1dB bandwidth (Note 6) 240 MHz
Passband Width Ripple < -0.01dB
0.4 x
f
DATA
0.604 x f
DATA
, 2x interpolation 100
0.604 x f
DATA
, 4x interpolation 100
Stopband Rejection
0.604 x f
DATA
, 8x interpolation 100
dB
1x interpolation 22
2x interpolation 70
4x interpolation 146
Data Latency
8x interpolation 311
Clock
Cycles
DAC INTERCHANNEL MATCHING
Gain Match ∆Gain f
OUT
= DC - 80MHz, I
OUTFS
= 20mA ±0.1 dB
Gain-Match Tempco ∆Gain/°C I
OUTFS
= 20mA ±0.02 ppm/°C
Phase Match ∆Phase f
OUT
= 60MHz, I
OUTFS
= 20mA ±0.13 Deg
Phase-Match Tempco ∆Phase/°C f
OUT
= 60MHz, I
OUTFS
= 20mA ±0.006 Deg/°C
DC Gain Match I
OUTFS
= 20mA -0.2 ±0.04 +0.2 dB
Channel-to-Channel Crosstalk f
OUT
= 50MHz, f
DAC
= 250MHz, 0dBFS -95 dB
REFERENCE
Reference Input Range 0.125 1.250 V
Reference Output Voltage V
REFIO
Internal reference 1.14 1.20 1.27 V
Reference Input Resistance R
REFIO
10 kΩ
Reference Voltage Drift ±50 ppm/°C
CMOS LOGIC INPUT/OUTPUT (A15–A0, SELIQ/B15, DATACLK/B14, B13–B0, DATACLK)
Input High Voltage V
IH
0.7 x
DV
DD1.8
V
Input Low Voltage V
IL
0.3 x
DV
DD1.8
V
Input Current I
IN
±1 ±20 µA
Input Capacitance C
IN
3pF