Datasheet

REV. A
–2–
AD1851/AD1861–SPECIFICATIONS
(T
A
@ +258C and 65 V supplies, unless otherwise noted)
NC = NO CONNECT
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16-BIT
LATCH
16-BIT
DAC
SERIAL
INPUT
REGISTER
CONTROL
LOGIC
AD1851
DGND
NC
CLK
LE
DATA
TRIM
MSB ADJ
AGND
SJ
NC
–V
S
+V
L
+V
S
I
OUT
R
F
V
OUT
I
OUT
AD1851 Functional Block Diagram
NC = NO CONNECT
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14
15
16
16-BIT
LATCH
16-BIT
DAC
SERIAL
INPUT
REGISTER
CONTROL
LOGIC
AD1851
DGND
NC
CLK
LE
DATA
TRIM
MSB ADJ
AGND
SJ
NC
–V
S
+V
L
+V
S
I
OUT
R
F
V
OUT
I
OUT
AD1861 Functional Block Diagram
Min Typ Max Units
DIGITAL INPUTS
V
IH
2.0 +V
L
V
V
IL
0.8 V
I
IH
, V
IH
= V
L
1.0 µA
I
IL
, V
IL
= 0.4 –10 µA
ACCURACY
Gain Error ±1%
Midscale Output Voltage ±10 mV
DRIFT (0°C to +70°C)
Total Drift ±25 ppm of FSR/°C
Bipolar Zero Drift ±4 ppm of FSR/°C
SETTLING TIME (To ±0.0015% of FSR)
Voltage Output
6 V Step 1.5 µs
1 LSB Step 1.0 µs
Slew Rate 9 V/µs
Current Output
1 mA Step 10 Ω to 100 Ω Load 350 ns
1 kΩ Load 350 ns
OUTPUT
Voltage Output Configuration
Bipolar Range 62.88 ±3.0 63.12 V
Output Current ±8mA
Output Impedance 0.1 Ω
Short Circuit Duration Indefinite to Common
Current Output Configuration
Bipolar Range (±30%) ±1.0 mA
Output Impedance (±30%) 1.7 kΩ
POWER SUPPLY
Voltage
+V
L
and +V
S
4.75 5.25 V
–V
S
–5.25 –4.75 V
TEMPERATURE RANGE
Specification 0 +25 +70 °C
Operation –25 +70 °C
Storage –60 +100 °C
WARM-UP TIME 1 min
Specifications subject to change without notice.