Datasheet

 2010 Microchip Technology Inc. DS22248A-page 5
MCP4901/4911/4921
ELECTRICAL CHARACTERISTIC WITH EXTENDED TEMPERATURE
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. Typical values are at +125°C by characterization or simulation.
Parameters Sym Min Typ Max Units Conditions
Power Requirements
Input Voltage V
DD
2.7 — 5.5
Input Current I
DD
—200— µAV
REF
input is unbuffered, all digi-
tal inputs are grounded, all analog
outputs (VOUT) are unloaded.
Code = 0x000h
Software Shutdown Current I
SHDN_SW
—5— µA
Power-on Reset Threshold V
POR
—1.85— V
DC Accuracy
MCP4901
Resolution n 8 — — Bits
INL Error INL ±0.25 LSb
DNL DNL ±0.2 LSb Note 1
MCP4911
Resolution n 10 — — Bits
INL Error INL ±1 LSb
DNL DNL ±0.2 LSb Note 1
MCP4921
Resolution n 12 — — Bits
INL Error INL ±4 LSb
DNL DNL ±0.25 LSb Note 1
Offset Error
V
OS
— ±0.02 — % of FSR Code = 0x000h
Offset Error Temperature
Coefficient
V
OS
/°C — -5 — ppm/°C +25°C to +125°C
Gain Error g
E
— -0.10 — % of FSR Code = 0xFFFh, not including
offset error
Gain Error Temperature
Coefficient
G/°C — -3 — ppm/°C
Input Amplifier (V
REF
Input)
Input Range – Buffered
Mode
V
REF
— 0.040 to
V
DD
-
0.040
—VNote 1
Code = 2048,
V
REF
= 0.2 Vp-p, f = 100 Hz and
1kHz
Input Range – Unbuffered
Mode
V
REF
0—V
DD
V
Input Impedance R
VREF
—174— k Unbuffered Mode
Input Capacitance –
Unbuffered Mode
C
VREF
—7— pF
Multiplying Mode
-3 dB Bandwidth
f
VREF
—450— kHzV
REF
= 2.5V ±0.1 Vp-p,
Unbuffered, G = 1x
f
VREF
—400— kHzV
REF
= 2.5V ±0.1 Vp-p,
Unbuffered, G = 2x
Note 1: Guaranteed monotonic by design over all codes.
2: This parameter is ensured by design, and not 100% tested.