Datasheet

Data Sheet AD5291/AD5292
SPECIFICATIONS
analog.com Rev. G | 4 of 33
Table 1.
Parameter Symbol Conditions Min Typ
1
Max Unit
R
AB
= 20 kΩ 0.103
R
AB
= 50 kΩ 0.039
R
AB
= 100 kΩ 0.021
DYNAMIC CHARACTERISTICS
5, 10
Bandwidth BW −3 dB, code = half scale kHz
R
AB
= 20 kΩ 520
R
AB
= 50 kΩ 210
R
AB
= 100 kΩ 105
Total Harmonic Distortion THD
W
V
A
= 1 V rms, V
B
= 0 V, f = 1 kHz dB
R
AB
= 20 kΩ −93
R
AB
= 50 kΩ −101
R
AB
= 100 kΩ −106
V
W
Settling Time t
S
V
A
= 30 V, V
B
= 0 V, ±0.5 LSB error
band, initial code = zero scale, board
capacitance = 170 pF
Code = full scale, normal mode 750 ns
Code = full scale, R-Perf mode 2.5 µs
Code = half scale, normal mode µs
R
AB
= 20 kΩ 2.5
R
AB
= 50 kΩ 7
R
AB
= 100 kΩ 14
Code = half scale, R-Perf mode µs
R
AB
= 20 kΩ 5
R
AB
= 50 kΩ 9
R
AB
= 100 kΩ 16
Resistor Noise Density e
N_WB
Code = half scale, T
A
= 25°C, 0 kHz to
200 kHz
nV/√Hz
R
AB
= 20 kΩ 10
R
AB
= 50 kΩ 18
R
AB
= 100 kΩ 27
1
Typical values represent average readings at 25°C, V
DD
= 15 V, V
SS
= −15 V, and V
LOGIC
= 5 V.
2
Resistor position nonlinearity error. R-INL is the deviation from an ideal value measured between the R
WB
at code 0x02 to code 0xFF or between R
WA
at code 0xFD to code
0x00. R-DNL measures the relative step change from ideal between successive tap positions. The specification is guaranteed in resistor performance mode, with a wiper
current of 1 mA for V
A
< 12 V and 1.2 mA for V
A
≥ 12 V.
3
Resistor performance mode (see the Resistor Performance Mode section). The terms resistor performance mode and R-Perf mode are used interchangeably.
4
Guaranteed by design and characterization, not subject to production test.
5
INL and DNL are measured at V
WB
with the RDAC configured as a potentiometer divider similar to a voltage output DAC. V
A
= V
DD
and V
B
= 0 V. DNL specification limits of
±1 LSB maximum are guaranteed monotonic operating conditions.
6
Resistor Terminal A, Resistor Terminal B, and Resistor Terminal W have no limitations on polarity with respect to each other. Dual-supply operation enables
ground-referenced bipolar signal adjustment.
7
Different from operating current; supply current for fuse program lasts approximately 550 µs.
8
Different from operating current; supply current for fuse read lasts approximately 550 µs.
9
P
DISS
is calculated from (I
DD
× V
DD
) + (I
SS
× V
SS
) + (I
LOGIC
× V
LOGIC
).
10
All dynamic characteristics use V
DD
= 15 V, V
SS
= −15 V, and V
LOGIC
= 5 V.