Datasheet
ELECTRICAL CHARACTERISTICS
DAC5662
SLAS425B – JULY 2004 – REVISED MAY 2007 ................................................................................................................................................................
www.ti.com
AC specifications over operating free-air temperature range, AVDD = DVDD = 3.3 V, IOUTFS = 20 mA, independent gain set
mode, differential 1:1 impedance ratio transformer coupled output, 50- Ω doubly terminated load (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Analog Output
f
clk
Maximum output update rate
(1)
275 MSPS
t
s
Output settling time to 0.1% Mid-scale transition 20 ns
(DAC)
t
r
Output rise time 10% to 90% 1.4 ns
(OUT)
t
f
Output fall time 90% to 10% 1.5 ns
(OUT)
IOUT
FS
= 20 mA 55 pA/ √ Hz
Output noise
IOUT
FS
= 2 mA 30 pA/ √ Hz
AC Linearity
1st Nyquist zone, T
A
= 25 ° C, f
DATA
= 50 81
MSPS, f
OUT
= 1 MHz, IOUTFS = 0 dB
1st Nyquist zone, T
A
= 25 ° C, f
DATA
= 50 83
MSPS, f
OUT
= 1 MHz, IOUTFS = -6 dB
1st Nyquist zone, T
A
= 25 ° C, f
DATA
= 50 81
MSPS, f
OUT
= 1 MHz, IOUTFS = -12 dB
1st Nyquist zone, T
A
= 25 ° C, f
DATA
= 100 85
MSPS, f
OUT
= 5 MHz
SFDR Spurious free dynamic range dBc
1st Nyquist zone, T
A
= 25 ° C, f
DATA
= 100 78
MSPS, f
OUT
= 20 MHz
1st Nyquist zone, T
MIN
to T
MAX
, f
DATA
= 200
66 71
MSPS, f
OUT
= 20 MHz
1st Nyquist zone, T
A
= 25 ° C, f
DATA
= 200 68
MSPS, f
OUT
= 41 MHz
1st Nyquist zone, T
A
= 25 ° C, f
DATA
= 275 72
MSPS, f
OUT
= 20 MHz
1st Nyquist zone, T
A
= 25 ° C, f
DATA
= 100 73
MSPS, f
OUT
= 5 MHz
SNR Signal-to-noise ratio dB
1st Nyquist zone, T
A
= 25 ° C, f
DATA
= 200 67
MSPS, f
OUT
= 20 MHz
W-CDMA signal with 3.84-MHz Bandwidth,
70
f
DATA
= 61.44 MSPS, IF = 15.360 MHz
ACLR Adjacent channel leakage ratio dB
W-CDMA signal with 3.84-MHz Bandwidth,
70
f
DATA
= 122.88 MSPS, IF = 30.72 MHz
Each tone at -6 dBFS, T
A
= 25 ° C,
f
DATA
= 200 MSPS, f
OUT
= 45.4 and 46.4 62
MHz
Third-order two-tone
IMD3 dBc
intermodulation
Each tone at -6 dBFS, T
A
= 25 ° C,
f
DATA
= 100 MSPS, f
OUT
= 15.1 and 16.1 78
MHz
Each tone at -12 dBFS, T
A
= 25 ° C,
f
DATA
= 100 MSPS, f
OUT
= 15.6, 15.8, 16.2, 77
and 16.4 MHz
Each tone at -12 dBFS, T
A
= 25 ° C,
IMD Four-tone intermodulation f
DATA
= 165 MSPS, f
OUT
= 68.8, 69.6, 71.2, 56 dBc
and 72.0 MHz
Each tone at -12 dBFS, T
A
= 25 ° C,
f
DATA
= 165 MSPS, f
OUT
= 19.0, 19.1, 19.3, 74
and 19.4 MHz
T
A
= 25 ° C, f
DATA
= 165 MSPS,
Channel isolation 97 dBc
f
OUT
(CH1) = 20 MHz, f
OUT
(CH2) = 21 MHz
(1) Specified by design and bench characterization. Not production tested.
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