Datasheet

REV. B–2–
AD9764–SPECIFICATIONS
DC SPECIFICATIONS
Parameter Min Typ Max Units
RESOLUTION 14 Bits
DC ACCURACY
1
Integral Linearity Error (INL)
T
A
= +25°C –4.5 ±2.5 +4.5 LSB
T
MIN
to T
MAX
–6.5 +6.5 LSB
Differential Nonlinearity (DNL)
T
A
= +25°C –2.5 ±1.5 +2.5 LSB
T
MIN
to T
MAX
–4.5 +4.5 LSB
ANALOG OUTPUT
Offset Error –0.025 +0.025 % of FSR
Gain Error (Without Internal Reference) –2 ±1 +2 % of FSR
Gain Error
(With Internal Reference) –7 ±1 +7 % of FSR
Full-Scale Output Current
2
2.0 20.0 mA
Output Compliance Range –1.0 1.25 V
Output Resistance 100 kΩ
Output Capacitance 5 pF
REFERENCE OUTPUT
Reference Voltage 1.08 1.20 1.32 V
Reference Output Current
3
100 nA
REFERENCE INPUT
Input Compliance Range 0.1 1.25 V
Reference Input Resistance 1 MΩ
Small Signal Bandwidth (w/o C
COMP1
)
4
1.4 MHz
TEMPERATURE COEFFICIENTS
Offset Drift 0 ppm of FSR/°C
Gain Drift
(Without Internal Reference) ±50 ppm of FSR/°C
Gain Drift
(With Internal Reference) ±100 ppm of FSR/°C
Reference Voltage Drift ±50 ppm/°C
POWER SUPPLY
Supply Voltages
AVDD
5
2.7 5.0 5.5 V
DVDD 2.7 5.0 5.5 V
Analog Supply Current (I
AVDD
)2530mA
Digital Supply Current (I
DVDD
)
6
1.5 4 mA
Supply Current Sleep Mode (I
AVDD
) 5.0 8.5 mA
Power Dissipation
6
(5 V, I
OUTFS
= 20 mA) 133 170 mW
Power Dissipation
7
(5 V, I
OUTFS
= 20 mA) 190 mW
Power Dissipation
7
(3 V, I
OUTFS
= 2 mA) 45 mW
Power Supply Rejection Ratio
8
—AVDD –0.4 +0.4 % of FSR/V
Power Supply Rejection Ratio
8
—DVDD –0.025 +0.025 % of FSR/V
OPERATING RANGE –40 +85 °C
NOTES
1
Measured at I
OUTA
, driving a virtual ground.
2
Nominal full-scale current, I
OUTFS
, is 32 × the I
REF
current.
3
Use an external buffer amplifier to drive any external load.
4
Reference bandwidth is a function of external cap at COMP1 pin and signal level.
5
For operation below 3 V, it is recommended that the output current be reduced to 12 mA or less to maintain optimum performance.
6
Measured at f
CLOCK
= 25 MSPS and f
OUT
= 1.0 MHz.
7
Measured as unbuffered voltage output with I
OUTFS
= 20 mA and 50 Ω R
LOAD
at I
OUTA
and I
OUTB
, f
CLOCK
= 100 MSPS and f
OUT
= 40 MHz.
8
± 5% Power supply variation.
Specifications subject to change without notice.
(T
MIN
to T
MAX
, AVDD = +5 V, DVDD = +5 V, I
OUTFS
= 20 mA, unless otherwise noted)