Datasheet

REV. A
–2–
AD766–SPECIFICATIONS
AD766J AD766A
Parameter Min Typ Max Min Typ Max Units
RESOLUTION 16 16 Bits
DIGITAL INPUTS
V
IH
2.0 +V
L
2.0 +V
L
V
V
IL
0.8 0.8 V
I
IH
, V
IH
= V
L
1.0 1.0 µA
I
IL
, V
IL
= 0.4 –10 –10 µA
SERIAL PORT TIMING
Serial Clock Period (t
CLK
) 95 115 ns
Serial Clock HI (t
HI
)3030ns
Serial Clock LO (t
LO
)3070ns
Data Valid (t
DATA
)4040ns
Data Setup (t
S
)1520ns
Data Hold (t
H
)1520ns
Clock-to-Latch-Enable (t
CTLE
) 80 100 ns
Latch-Enable-to-Clock (t
LETC
)15 15 ns
Latch Enable HI (t
LEHI
)4040ns
Latch Enable LO (t
LELO
)40 80ns
ACCURACY
1
Gain Error ±2.0 ±2.0 % of FSR
Gain Drift ±25 ±25 ppm of FSR/°C
Midscale Output Voltage Error ±30 ±30 mV
Bipolar Zero Drift ±4 ±4 ppm of FSR/°C
Differential Linearity Error ±0.001 ±0.001 % of FSR
Monotonicity 15 15 Bits
TOTAL HARMONIC DISTORTION
F
OU T
= 1037 Hz
1
0 dB –88 –81 –88 –81 dB
–20 dB –75 –65 –75 –65 dB
–60 dB –37 –27 –37 –27 dB
F
OUT
= 49.07 kHz
2
0 dB –77 –72 –77 –72 dB
–20 dB –69 –66 –69 –66 dB
–60 dB –25 –21 –25 –21 dB
SIGNAL-TO-NOISE RATIO
3
20 Hz to 20 kHz (F
OUT
= 1037 Hz)
1
94 102 94 102 dB
20 kHz to 250 kHz (F
OUT
= 49.07 kHz)
2
79 83 79 83 dB
SETTLING TIME (to ±0.0015% of FSR)
Voltage Output
1
6 V Step 1.5 1.5 µs
1 LSB Step 1.0 1.0 µs
Slew Rate 9 9 V/µs
Current Output
1 mA Step 10 Ω to 100 Ω Load 350 350 ns
1 kΩ Load 350 350 ns
OUTPUT
Voltage Output Configuration
1
Bipolar Range ±2.88 ±3.0 ±3.12 ±2.88 ±3.0 ±3.12 V
Output Current ±8.0 ±8.0 mA
Output Impedance 0.1 0.1 Ω
Short Circuit Duration Indefinite to Common Indefinite to Common
Current Output Configuration
Bipolar Range ±0.7 ±1.0 ±1.3 ±0.7 ±1.0 ±1.3 mA
Output Impedance (±30%) 1.7 1.7 kΩ
POWER SUPPLY
Voltage: +V
L
and +V
S
4.75 13.2 4.75 13.2 V
Voltage: –V
L
and –V
S
–13.2 –4.75 –13.2 –4.75 V
Current Case 1
1
: V
S
and V
L
= +5 V +I 12.0 15.0 12.0 15.0 mA
Current Case 1
1
: –V
S
and –V
L
= –5 V –I –12.0 –15.0 –12.0 –15.0 mA
Current Case 2:
1
V
S
and V
L
= +12 V +I 10.5 10.5 mA
Current Case 2:
1
–V
S
and –V
L
= –12 V –I –14 –14 mA
Current Case 3
4
: V
S
and V
L
= +5 V +I 12 12 mA
Current Case 2:
1
–V
S
and –V
L
= –12 V –I –14 –14 mA
Power Dissipation: V
S
and V
L
= ±5 V
1
120 150 120 150 mW
Power Dissipation: V
S
and V
L
= ±12 V 300 300 mW
Power Dissipation: V
S
and V
L
= +5 V,
Power Dissipation: –V
S
and –V
L
= –12 V
4
225 225 mW
(T
MIN
to T
MAX
, 65 V supplies, F
S
= 500 kSPS unless otherwise noted. No deglitchers or
MSB trimming is used.)