THS5661A_15 Datasheet, PDF (5/34 Pages) Texas Instruments – DIGITAL-TO-ANALOG CONVERTER

THS5661A
12ĆBIT, 125 MSPS, CommsDAC
DIGITALĆTOĆANALOG CONVERTER
SLAS247B − NOVEMBER 1999 REVISED SEPTEMBER 2002
electrical characteristics over recommended operating free-air temperature range, AV_DD = 5 V,
DV_DD = 5 V, IOUT_FS = 20 mA, differential transformer coupled output, 50 Ω doubly terminated load
(unless otherwise noted)
ac specifications
PARAMETER
TEST CONDITIONS
Analog output
fCLK
Maximum output update rate
ts(DAC)
tpd
GE
tr(IOUT)
tf(IOUT)
Output settling time to 0.1%†
Output propagation delay
Glitch energy‡
Output rise time 10% to 90%†
Output fall time 90% to 10%†
Output noise
AC linearity
DVDD = 4.5 V to 5.5 V
DVDD = 3 V to 3.6 V
Worst case LSB transition (code 2047 − code 2048)
IOUTFS = 20 mA
IOUTFS = 2 mA
fCLK = 25 MSPS, fOUT = 1 MHz, TA = 25°C
THD
Total harmonic distortion
fCLK = 50 MSPS, fOUT = 1 MHz, TA = −40°C to 85°C
fCLK = 50 MSPS, fOUT = 2 MHz, TA = 25°C
fCLK = 100 MSPS, fOUT = 2 MHz, TA = 25°C
fCLK = 25 MSPS, fOUT = 1 MHz, TA = 25°C
fCLK = 50 MSPS, fOUT= 1 MHz, TA = −40°C to 85°C
fCLK = 50 MSPS, fOUT = 1 MHz, TA = 25°C
SFDR
Spurious free dynamic range to
Nyquist
fCLK = 50 MSPS, fOUT = 2.51 MHz, TA = 25°C
fCLK = 50 MSPS, fOUT = 5.02 MHz, TA = 25°C
fCLK = 50 MSPS, fOUT = 20.2 MHz, TA = 25°C
fCLK = 100 MSPS, fOUT = 5.04 MHz, TA = 25°C
fCLK = 100 MSPS, fOUT = 20.2 MHz, TA = 25°C
fCLK = 100 MSPS, fOUT = 40.4 MHz, TA = 25°C
Spurious free dynamic range
within a window
fCLK = 50 MSPS, fOUT = 1 MHz, TA= 25°C,1 MHz span
fCLK = 50 MSPS, fOUT = 5.02 MHz, 2 MHz span
fCLK = 100 MSPS, fOUT= 5.04 MHz, 4 MHz span
† _{Measured single ended into 50 Ω load at IOUT1.}
‡ _{Single-ended output IOUT1, 50 Ω doubly terminated load.}
MIN TYP MAX UNIT
100 125
70 100
35
1
5
1
1
15
10
MSPS
ns
ns
pV-s
ns
ns
pA/√HZ
−78
−77 −66
dBc
−75
−75
82
68
79
dBc
75
69
61
68
dBc
59
dBc
60
dBc
89
88
dBc
89
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