AD7538 Analog Devices, AD7538 Datasheet - Page 4

• Manufacturer Part Number: AD7538
• Description: LC2MOS Microprocessor-Compatible 14-Bit DAC
• Manufacturer: Analog Devices

Specifications of AD7538

• Resolution (bits): 14bit
• Dac Update Rate: 667kSPS
• Dac Settling Time: 1.5µs
• Max Pos Supply (v): +15.75V
• Single-supply: No
• Dac Type: Current Out
• Dac Input Format: Par

AD7538
AC PERFORMANCE CHARACTERISTICS
These characteristics are included for design guidance only and are not subject to test. V
0 V, V
Table 2.
Parameter
Output Current Settling Time
Digital-to-Analog Glitch Impulse
Multiplying Feedthrough Error
Power Supply Rejection
Output Capacitance
Output Noise Voltage Density
TIMING CHARACTERISTICS
V
Figure 2 for a timing diagram.
Table 3.
Parameter
t
t
t
t
t
t
1
1
2
3
4
5
6
Temperature range as follows: J, K Versions: 0°C to +70°C
DD
ΔGain/ΔV
C
C
(10 Hz to 100 kHz)
OUT
OUT
= 11.4 V to 15.75 V, V
SS
(Pin 3)
(Pin 3)
= 0 V or −300 mV, output amplifier is
1
DD
Limit at
T
0
0
170
170
140
20
A
= +25°C
A, B Versions: −25°C to +85°C
S, T Versions: −55°C to +125°C
REF
= 10 V, V
Limit at T
T
0
0
200
200
160
20
A
= −25°C to +85°C
T
T
1.5
20
3
±0.01
260
130
15
A
A
PIN3
= 25°C
= T
= V
A
MIN
= 0°C to +70°C
, T
AD711
PIN4
MAX
5
±0.02
260
130
= 0 V, V
except where noted.
SS
μs max
Unit
nV-sec typ
mV p-p typ
% per % max
pF max
pF max
nV√Hz typ
= 0 V or −300 mV. All specifications T
Rev. B | Page 4 of 16
Limit at
T
0
0
240
240
180
30
A
= −55°C to +125°C
Test Conditions/Comments
To 0.003% of full-scale range
I
with all 1s and all 0s; typical value of settling time is 0.8 μs
Measured with V
register alternately loaded with all 1s and all 0s
V
Register loaded with all 0s
ΔV
DAC register loaded with all 1s
DAC register loaded with all 0s
Measured between R
OUT
REF
DD
load= 100 Ω, C
= ±10 V, 10 kHz sine wave DAC
= ±5%
DD
= 11.4 V to 15.75 V, V
REF
Unit
ns min
ns min
ns min
ns min
ns min
ns min
EXT
= 0 V. I
FB
MIN
= 13 pF DAC register alternately loaded
and I
to T
OUT
Test Conditions/Comments
CS to WR setup time
CS to WR hold time
LDAC pulse width
Write pulse width
Data setup time
Data hold time
OUT
MAX
load = 100 Ω, C
unless otherwise noted. See
REF
= 10 V, V
EXT
= 13 pF; DAC
PIN3
= V
PIN4
=