AD9748 Datasheet, PDF (2/7 Pages) Analog Devices – 8-Bit, 165 MSPS TxDAC D/A Converter

PRELIMINARY TECHNICAL DATA
AD9748-SPECIFICATIONS
DC SPECIFICATIONS (T_MIN to T_MAX, AVDD = 3.3 V, DVDD = 3.3 V, I_OUTFS = 20 mA, unless otherwise noted.)
Parameter
Min
Typ
Max
Unit
RESOLUTION
8
Bits
DC ACCURACY¹
Integral Linearity Error (INL)
Differential Nonlinearity (DNL)
TBD
TBD
±0.25
TBD
LSB
±0.25
TBD
LSB
ANALOG OUTPUT
Offset Error
Gain Error (Without Internal Reference)
Gain Error (With Internal Reference)
Full-Scale Output Current²
Output Compliance Range
Output Resistance
Output Capacitance
–0.02
–0.5
–0.5
2.0
–1.0
+0.02
% of FSR
±0.1
+0.5
% of FSR
±0.1
+0.5
% of FSR
20.0
mA
+1.25
V
100
kΩ
5
pF
REFERENCE OUTPUT
Reference Voltage
Reference Output Current ³
1.14
1.20
1.26
V
100
nA
REFERENCE INPUT
Input Compliance Range
Reference Input Resistance (Ext. Ref)
Small Signal Bandwidth
0.1
1.25
V
1
MΩ
0.5
MHz
TEMPERATURE COEFFICIENTS
Offset Drift
Gain Drift (Without Internal Reference)
Gain Drift (With Internal Reference)
Reference Voltage Drift
0
±50
±100
±50
ppm of FSR/°C
ppm of FSR/°C
ppm of FSR/°C
ppm/°C
POWER SUPPLY
Supply Voltages
AVDD
DVDD
Analog Supply Current (I_AVDD)
Digital Supply Current (I_DVDD)⁴
Supply Current Sleep Mode (I_AVDD)
Power Dissipation⁴
Power Dissipation⁵
Power Supply Rejection Ratio—AVDD⁶
Power Supply Rejection Ratio—DVDD⁶
3.0
3.3
3.6
V
3.0
3.3
3.6
V
33
36
mA
8
TBD
mA
5
6
mA
135
145
mW
145
mW
–1
+1
% of FSR/V
–0.04
+0.04
% of FSR/V
OPERATING RANGE
–40
+85
°C
NOTES
1_{Measured at IOUTA, driving a virtual ground.}
2_{Nominal full-scale current, IOUTFS, is 32 times the IREF current.}
3_{An external buffer amplifier with input bias current <100 nA should be used to drive any external load.}
4_{Measured at f = 25 MSPS and f = 1.0 MHz.}
CLOCK
OUT
5_Measured
as
unbuffered
voltage
output
with
I
OUTFS
=
20
mA
and
50
Ω
R
LOAD
at
IOUTA
and
IOUTB,
f
CLOCK
=
100
MSPS
and
f
OUT
=
40
MHz.
6_{±5% Power supply variation.}
Specifications subject to change without notice.
REV. PrA
–2–