Datasheet

Data Sheet AD5547/AD5557
Rev. D | Page 3 of 20
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
V
DD
= 2.7 V to 5.5 V, I
OUT
= virtual GND, GND = 0 V, V
REF
= −10 V to +10 V, T
A
= −40°C to +125°C, unless otherwise noted.
Table 1.
Parameter Symbol Test Conditions/Comments Min Typ Max Unit
STATIC PERFORMANCE
1
Resolution N AD5547, 1 LSB = V
REF
/2
16
= 153 µV at V
REF
= 10 V 16 Bits
AD5557, 1 LSB = V
REF
/2
14
= 610 µV at V
REF
= 10 V 14 Bits
Relative Accuracy INL Grade: AD5557C ±1 LSB
Grade: AD5547B ±2 LSB
Grade: AD5547C ±1 LSB
Differential Nonlinearity DNL Monotonic ±1 LSB
Output Leakage Current I
OUT
Data = zero scale, T
A
= 25°C 10 nA
Data = zero scale, T
A
= T
A
maximum 20 nA
Full-Scale Gain Error G
FSE
Data = full scale ±1 ±4 mV
Bipolar Mode Gain Error G
E
Data = full scale ±1 ±4 mV
Bipolar Mode Zero-Scale Error G
ZSE
Data = full scale ±1 ±3 mV
Full-Scale Temperature Coefficient
2
TCV
FS
1 ppm/°C
REFERENCE INPUT
V
REF
Range V
REF
−18 +18 V
REF Input Resistance REF 4 5 6 kΩ
R1 and R2 Resistance R1 and R2 4 5 6 kΩ
R1-to-R2 Mismatch Δ(R1 to R2) ±0.5 ±1.5 Ω
Feedback and Offset Resistance R
FB
, R
OFS
8 10 12 kΩ
Input Capacitance
2
C
REF
5 pF
ANALOG OUTPUT
Output Current I
OUT
Data = full scale 2 mA
Output Capacitance
2
C
OUT
Code dependent 200 pF
LOGIC INPUT AND OUTPUT
Logic Input Low Voltage V
IL
V
DD
= 5 V 0.8 V
V
DD
= 3 V 0.4 V
Logic Input High Voltage V
IH
V
DD
= 5 V 2.4 V
V
DD
= 3 V 2.1 V
Input Leakage Current I
IL
10 µA
Input Capacitance
2
C
IL
10 pF
INTERFACE TIMING
2, 3
See Figure 3
Data to
WR
Setup Time t
DS
V
DD
= 5 V 20 ns
V
DD
= 3 V 35 ns
Data to
WR
Hold Time t
DH
V
DD
= 5 V 0 ns
V
DD
= 3 V 0 ns
WR
Pulse Width t
WR
V
DD
= 5 V 20 ns
V
DD
= 3 V 35 ns
LDAC Pulse Width t
LDAC
V
DD
= 5 V 20 ns
V
DD
= 3 V 35 ns
RS
Pulse Width t
RS
V
DD
= 5 V 20 ns
V
DD
= 3 V 35 ns
WR
to LDAC Delay Time t
LWD
V
DD
= 5 V 0 ns
V
DD
= 3 V 0 ns