Appendix C
590
THS5641A
8-BIT, 100 MSPS, CommsDAC
DIGITAL-TO-ANALOG CONVERTER
SLAS277A –MARCH 2000 – REVISED SEPTEMBER 2002
4
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range, AV
DD
= 5 V,
DV
DD
= 5 V, IOUT
FS
= 20 mA (unless otherwise noted)
dc specifications
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Resolution 8 Bits
DC accuracy
†
INL Integral nonlinearity
–0.25 ±0.1 0.25 LSB
DNL Differential nonlinearity
T
A
= –40
C to 85
C
–0.25 ±0.05 0.25 LSB
Monotonicity Monotonic
Analog output
Offset error 0.02 %FSR
Without internal reference 2.3
Gain error
With internal reference
1.3
%FSR
Full scale output current
‡
2 20 mA
pp
AV
DD
= 5 V, IOUT
FS
= 20 mA –1 1.25 V
Output compliance range
AV
DD
= 3.3 V IOUT
FS
= 20 mA
–1 0.6 V
Output resistance 300 kΩ
Output capacitance 5 pF
Reference output
Reference voltage 1.18 1.22 1.32 V
Reference output current
§
100 nA
Reference input
V
EXTIO
Input voltage range 0.1 1.25 V
Input resistance 1 MΩ
Small signal bandwidth
¶
Without C
COMP1
1.3 MHz
Input capacitance 100 pF
Temperature coefficients
Offset drift 0
Without internal reference ±40
ppm of
Gain drift
With internal reference
±120
FSR/°C
Reference voltage drift ±35
Power supply
AV
DD
Analog supply voltage 3 5.5 V
DV
DD
Digital supply voltage 3 5.5 V
Analog supply current 25 30 mA
I
AVDD
Sleep mode supply current Sleep mode 3 5 mA
I
DVDD
Digital supply current
#
5 6 mA
p
AV
DD
= 5 V, DV
DD
= 5 V IOUT
FS
= 20 mA 175
Power dissipation
||
AV
DD
= 3.3 V, DV
DD
= 3.3 V, IOUT
FS
= 20 mA 100
mW
AV
DD
pp
±0.4
DV
DD
Power supply rejection ratio
±0.025
%FSR/V
Operating range –40 85 °C
†
Measured at IOUT1 in virtual ground configuration.
‡
Nominal full-scale current IOUT
FS
equals 32X the IBIAS current.
§
Use an external buffer amplifier with high impedance input to drive any external load.
¶
Reference bandwidth is a function of external cap at COMP1 pin and signal level.
#
Measured at f
CLK
= 50 MSPS and f
OUT
= 1 MHz.
||
Measured for 50 Ω R
LOAD
at IOUT1 and IOUT2, f
CLK
= 50 MSPS and f
OUT
= 20 MHz.
Specifications subject to change
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