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THS5661A_15 Datasheet, PDF (4/34 Pages) Texas Instruments – DIGITAL-TO-ANALOG CONVERTER | |||
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THS5661A
12ÄBIT, 125 MSPS, CommsDAC
DIGITALÄTOÄANALOG CONVERTER
SLAS247B â NOVEMBER 1999 REVISED SEPTEMBER 2002
electrical characteristics over recommended operating free-air temperature range, AVDD = 5 V,
DVDD = 5 V, IOUTFS = 20 mA (unless otherwise noted)
dc specifications
PARAMETER
TEST CONDITIONS
Resolution
DC accuracyâ
INL
DNL
Integral nonlinearity
Differential nonlinearity
TA = â40°C to 85°C
Monotonicity
At 11-bit level
Analog output
Offset error
Gain error
Full scale output currentâ¡
Without internal reference
With internal reference
Output compliance range
Output resistance
AVDD = 5 V, IOUTFS = 20 mA
Output capacitance
Reference output
Reference voltage
Reference output current§
Reference input
VEXTIO
Input voltage range
Input resistance
Small signal bandwidth¶
Input capacitance
Without CCOMP1
Temperature coefficients
Offset drift
Gain drift
Reference voltage drift
Without internal reference
With internal reference
Power supply
AVDD Analog supply voltagek
DVDD Digital supply voltage
IAVDD
Analog supply current
Sleep mode supply current
Sleep mode
IDVDD Digital supply current#
Power dissipation||
AVDD = 5 V, DVDD = 5 V, IOUTFS = 20 mA
AVDD
DVDD
Power supply rejection ratio
Operating range
â Measured at IOUT1 in virtual ground configuration.
â¡ Nominal full-scale current IOUTFS 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 fCLK = 50 MSPS and fOUT= 1 MHz.
|| Measured for 50 ⦠RLOAD at IOUT1 and IOUT2, fCLK = 50 MSPS and fOUT = 20 MHz.
Specifications subject to change
kReduce full-scale output current to 10 mA for AVDD <3.6 V when driving a 50 ⦠load.
MIN TYP MAX UNIT
12
Bits
â4 ±0.75
â2 ±0.5
Monotonic
4 LSB
2 LSB
0.02
%FSR
â5 ±0.5
â5 ±1.5
5
%FSR
5
2
20 mA
â1
1.25
V
300
kâ¦
5
pF
1.19 1.25 1.31
V
100
nA
0.1
1.25
V
1
Mâ¦
1.3
MHz
100
pF
0
±40
±120
±35
ppm of
FSR/°C
3
3
25
3
5
175
±0.4
±0.025
â40
5.5
V
5.5
V
30 mA
5 mA
6 mA
mW
%FSR/V
85 °C
4
⢠POST OFFICE BOX 655303 DALLAS, TEXAS 75265
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