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DAC3484IRKDT 数据表(PDF) 7 Page - Texas Instruments

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部件名 DAC3484IRKDT
功能描述  Quad-Channel, 16-Bit, 1.25 GSPS Digital-to-Analog Converter (DAC)
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

DAC3484IRKDT 数据表(HTML) 7 Page - Texas Instruments

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DAC3484
www.ti.com
SLAS749A
– MARCH 2011 – REVISED JULY 2011
ELECTRICAL CHARACTERISTICS
– DC SPECIFICATIONS
(1)
over recommended operating free-air temperature range, nominal supplies, IOUTFS = 20mA (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP MAX
UNIT
Resolution
16
Bits
DC ACCURACY
DNL
Differential nonlinearity
±2
LSB
1 LSB = IOUTFS/2
16
INL
Integral nonlinearity
±4
LSB
ANALOG OUTPUT
Coarse gain linearity
±0.04
LSB
Offset error
Mid code offset
±0.001
%FSR
With external reference
±2
%FSR
Gain error
With internal reference
±2
%FSR
Gain mismatch
With internal reference
±2
%FSR
Full scale output current
10
20
30
mA
Output compliance range
–0.5
0.6
V
Output resistance
300
k
Ω
Output capacitance
5
pF
REFERENCE OUTPUT
VREF
Reference output voltage
1.2
V
Reference output current(2)
100
nA
REFERENCE INPUT
VEXTIO
Input voltage range
0.6
1.2
1.25
V
External Reference Mode
Input resistance
1
M
Ω
Small signal bandwidth
472
kHz
Input capacitance
100
pF
TEMPERATURE COEFFICIENTS
Offset drift
±1
ppm/
°C
with external reference
±15
ppm/
°C
Gain drift
with internal reference
±30
ppm/
°C
Reference voltage drift
±8
ppm/
°C
POWER SUPPLY(3)
AVDD, IOVDD, PLLAVDD
All Conditions
3.14
3.3
3.46
V
DIGVDD
All Conditions
1.14
1.2
1.32
V
FDAC Sampling Rate ≤ 1.25GSPS, PLL OFF
1.14
1.2
1.32
FDAC Sampling Rate ≤ 1GSPS, PLL ON
CLKVDD, DACVDD
V
FDAC Sampling Rate > 1GSPS, PLL ON
1.25
1.29
1.32
PSRR
Power Supply Rejection Ratio
DC tested
±0.2
%FSR/V
POWER CONSUMPTION
I(AVDD)
Analog supply current(4)
123
135
mA
MODE 1
I(DIGVDD)
Digital supply current
595
650
mA
fDAC = 1.25GSPS, 4x interpolation, Mixer on,
I(DACVDD)
DAC supply current
35
50
mA
QMC on, invsinc on, PLL enabled, 20mA FS
I(CLKVDD)
Clock supply current
90
95
mA
output, IF = 200MHz
P
Power dissipation
1270
1320
mW
(1)
Measured differentially across IOUTP/N with 25
Ω each to GND.
(2)
Use an external buffer amplifier with high impedance input to drive any external load.
(3)
To ensure power supply accuracy and to account for power supply filter network loss at operating conditions, the use of the ATEST
function in register config27 to check the internal power supply nodes is recommended.
(4)
Includes AVDD, PLLAVDD, and IOVDD
Copyright
© 2011, Texas Instruments Incorporated
7


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