MCP4901 Datasheet, PDF (4/50 Pages) Microchip Technology – 8/10/12-Bit Voltage Output Digital-to-Analog Converter with SPI Interface

MCP4901/4911/4921
ELECTRICAL CHARACTERISTICS (CONTINUED)
Electrical Specifications: Unless otherwise indicated, V_DD = 5V, V_SS = 0V, V_REF = 2.048V, Output Buffer Gain
(G) = 2x, R_L = 5 k to GND, C_L = 100 pF T_A = -40 to +85°C. Typical values are at +25°C.
Parameters
Sym Min Typ
Max
Units
Conditions
Offset Error
V_OS
— ±0.02
1
% of Code = 0x000h
FSR
Offset Error Temperature
V_OS/°C
—
0.16
—
ppm/°C -45°C to 25°C
Coefficient
— -0.44
—
ppm/°C +25°C to 85°C
Gain Error
g_E
— -0.10
1
% of Code = 0xFFFh, not including
FSR offset error
Gain Error Temperature
Coefficient
G/°C —
-3
—
ppm/°C
Input Amplifier (V_REF Input)
Input Range – Buffered
Mode
V_REF 0.040 —
Input Range – Unbuffered
V_REF
0
—
Mode
V_DD –
0.040
V_DD
V Note 2
Code = 2048
V
V_REF = 0.2 Vp-p, f = 100 Hz and
1 kHz
Input Impedance
Input Capacitance –
Unbuffered Mode
R_VREF
—
165
—
C_VREF
—
7
—
k Unbuffered Mode
pF
Multiplier Mode
-3 dB Bandwidth
f_VREF
—
450
—
kHz V_REF = 2.5V ±0.2Vp-p,
Unbuffered, G = 1
f_VREF
—
400
—
kHz V_REF = 2.5V ±0.2 Vp-p,
Unbuffered, G = 2
Multiplier Mode –
THD_VREF —
-73
—
Total Harmonic Distortion
dB V_REF = 2.5V ±0.2Vp-p,
Frequency = 1 kHz
Output Amplifier
Output Swing
V_OUT
— 0.01 to
—
V_DD –
0.04
V Accuracy is better than 1 LSb for
V_OUT = 10 mV to (V_DD – 40 mV)
Phase Margin
m
—
66
—
Degrees
Slew Rate
SR
— 0.55
—
V/µs
Short Circuit Current
Settling Time
I_SC
—
15
24
t_settling
—
4.5
—
mA
µs Within 1/2 LSB of final value from
1/4 to 3/4 full-scale range
Dynamic Performance (Note 2)
DAC-to-DAC Crosstalk
—
10
—
nV-s
Major Code Transition
Glitch
—
45
—
nV-s 1 LSB change around major carry
(0111...1111 to 1000...0000)
Digital Feedthrough
—
10
—
nV-s
Analog Crosstalk
—
10
—
nV-s
Note 1: Guaranteed monotonic by design over all codes.
2: This parameter is ensured by design, and not 100% tested.
DS22248A-page 4
 2010 Microchip Technology Inc.