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2012 Microchip Technology Inc.
DS25118C-page 5
MCP47DA1
Output Amplifier
Minimum Output
Voltage
VOUT(MIN)
—VREF / 3
—
V
Device Output minimum drive
Maximum Output
Voltage
VOUT(MAX)
—2 * VREF/3
—
V
Device Output maximum drive
Phase Margin
PM
—
66
—
Degree (°) CL = 400 pF, RL =
Slew Rate
SR
—
0.55
—
V/s
Short Circuit
Current
ISC
515
24
mA
Settling Time
tSETTLING
—6
—
s
External Reference (VREF) (Note 3)
Input Capacitance
CVREF
—7
—
pF
Total Harmonic
Distortion
THD
—
-73
—
dB
VREF = 1.65V ± 0.1V,
Frequency = 1 kHz
Dynamic Performance (Note 3)
Major Code
Transition Glitch
—
45
—
nV-s
1 LSb change around major carry
(40h to 3Fh)
Digital
Feedthrough
—<10
—
nV-s
AC/DC CHARACTERISTICS (CONTINUED)
DC Characteristics
Standard Operating Conditions (unless otherwise specified)
Operating Temperature
–40°C
T
A +125°C (extended)
All parameters apply across the specified operating ranges unless noted.
VDD = +2.7V to +5.5V. CL = 1 nF, RL = 5 k .
Typical specifications represent values for VDD = 5.5V, TA = +25°C.
Parameters
Sym
Min
Typ
Max
Units
Conditions
Note 1:
Resistance is defined as the resistance between the VREF pin and the VSS pin.
2:
INL and DNL are measured at VOUT from Code = 20h (Zero-Scale) through Code = 60h (Full-Scale).
3:
This specification by design.
4:
Non-linearity is affected by wiper resistance (RW), which changes significantly over voltage and
temperature.
5:
POR/BOR is not rate dependent.
6:
Supply current is independent of VREF current.
7:
See Section 7.1.3.
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