Datasheet

AD7304/AD7305
Rev. C | Page 3 of 20
SPECIFICATIONS
@ V
DD
= 3 V or 5 V, V
SS
= 0 V; or V
DD
= +5 V and V
SS
= –5 V, V
SS
≤ V
REF
≤ V
DD
, −40°C < T
A
< +85°C/+125°C, unless otherwise noted.
Table 1.
Parameter Symbol Condition 3 V ± 10% 5 V ± 10% ±5 V ± 10% Unit
STATIC PERFORMANCE
Resolution
1
N 8 8 8 Bits
Integral Nonlinearity
2
INL ±1 ±1 ±1 LSB max
Differential Nonlinearity DNL Monotonic, all codes 0 to 0xFF ±1 ±1 ±1 LSB max
Zero-Scale Error V
ZSE
Data = 0x00 15 15 ±15 mV max
Full-Scale Voltage Error V
FSE
Data = 0xFF ±4 ±4 ±4 LSB max
Full-Scale Temperature
Coefficient
3
TCV
FS
5 5 5 ppm/°C typ
4
REFERENCE INPUT
V
REFIN
Range V
REFIN
V
SS
/V
DD
V
SS
/V
DD
V
SS
/V
DD
V min/max
Input Resistance (AD7304) R
REFIN
Code = 0x55 28 28 28 kΩ typ
Input Resistance (AD7305) R
REFIN
All DACs at code = 0x55 7.5 7.5 7.5 kΩ typ
Input Capacitance
3
C
REFIN
5 5 5 pF typ
ANALOG OUTPUTS
Output Voltage Range V
OUT
V
SS
/V
DD
V
SS
/V
DD
V
SS
/V
DD
V min/max
Output Current Drive I
OUT
Code = 0x80, ∆V
OUT
< 1 LSB ±3 ±3 ±3 mA typ
Shutdown Resistance R
OUT
DAC outputs placed in shutdown
state
120 120 120 kΩ typ
Capacitive Load
3
C
L
No oscillation 200 200 200 pF typ
LOGIC INPUTS
Logic Input Low Voltage V
IL
0.6 0.8 0.8 V min
Logic Input High Voltage V
IH
2.1 2.4 2.4 V max
Input Leakage Current
5
I
IL
±10 ±10 ±10 µA max
Input Capacitance
3
C
IL
8 8 8 pF max
AC CHARACTERISTICS
3
Output Slew Rate SR Code = 0x00 to 0xFF to 0x00 1/2.7 1/3.6 1.0/3.6 V/µs min/typ
Reference Multiplying BW Small signal, V
SS
= –5 V 2.6 MHz typ
Total Harmonic Distortion THD V
REF
= 4 V p-p, V
SS
= –5 V, f = 1 kHz 0.025 %
Settling Time
6
t
S
To ±0.1% of full scale 1.1/2 1.0/2 1.0/2 µs typ/max
Shutdown Recovery Time t
SDR
To ±0.1% of full scale 2 2 2 µs max
Time to Shutdown t
SDN
15 15 15 µs typ
DAC Glitch Q 15 15 15 nVs typ
Digital Feedthrough Q 2 2 2 nVs typ
Feedthrough V
OUT
/V
REF
Code = 0x00, V
REF
= 1 V p-p, f = 100 kHz −65 dB
SUPPLY CHARACTERISTICS
Positive Supply Current I
DD
V
LOGIC
= 0 V or V
DD
, no load 6 6 6 mA max
Negative Supply Current I
SS
V
SS
= –5 V 6 mA max
Power Dissipation P
DISS
V
LOGIC
= 0 V or V
DD
, no load 15 30 60 mW max
Power Down I
DD_SD
SDI/SHDN = floating 40 40 40 µA typ
Power Supply Sensitivity PSS ∆V
DD
= ±10% 0.004 0.004 0.004 %/%
1
One LSB = V
REF
/256.
2
The first three codes (0x00, 0x01, 0x10) are excluded from the integral nonlinearity error measurement in single-supply operation 3 V or 5 V.
3
These parameters are guaranteed by design and not subject to production testing.
4
Typical specifications represent average readings measured at 25°C.
5
The SDI/SHDN and A0/SHDN pins have a 30 µA maximum I
IL
input leakage current.
6
The settling time specification does not apply for negative going transitions within the last three LSBs of ground in single-supply operation.